Linear.Quaternion:$csin from linear-1.19.1.3

Percentage Accurate: 100.0% → 100.0%
Time: 12.3s
Alternatives: 19
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \cos x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (cos x) (/ (sinh y) y)))
double code(double x, double y) {
	return cos(x) * (sinh(y) / y);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = cos(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.cos(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.cos(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(cos(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = cos(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Cos[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\cos x \cdot \frac{\sinh y}{y}
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 19 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \cos x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (cos x) (/ (sinh y) y)))
double code(double x, double y) {
	return cos(x) * (sinh(y) / y);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = cos(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.cos(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.cos(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(cos(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = cos(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Cos[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\cos x \cdot \frac{\sinh y}{y}
\end{array}

Alternative 1: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \cos x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (cos x) (/ (sinh y) y)))
double code(double x, double y) {
	return cos(x) * (sinh(y) / y);
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = cos(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.cos(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.cos(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(cos(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = cos(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Cos[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\cos x \cdot \frac{\sinh y}{y}
\end{array}
Derivation
  1. Initial program 100.0%

    \[\cos x \cdot \frac{\sinh y}{y} \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 2: 92.7% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \cos x \cdot \left(1 + \left(y \cdot y\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\ \mathbf{if}\;y \leq 0.28:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 3.9 \cdot 10^{+77}:\\ \;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0
         (*
          (cos x)
          (+
           1.0
           (*
            (* y y)
            (+ 0.16666666666666666 (* (* y y) 0.008333333333333333)))))))
   (if (<= y 0.28)
     t_0
     (if (<= y 3.9e+77) (* (/ (sinh y) y) (+ 1.0 (* (* x x) -0.5))) t_0))))
double code(double x, double y) {
	double t_0 = cos(x) * (1.0 + ((y * y) * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
	double tmp;
	if (y <= 0.28) {
		tmp = t_0;
	} else if (y <= 3.9e+77) {
		tmp = (sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	} else {
		tmp = t_0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = cos(x) * (1.0d0 + ((y * y) * (0.16666666666666666d0 + ((y * y) * 0.008333333333333333d0))))
    if (y <= 0.28d0) then
        tmp = t_0
    else if (y <= 3.9d+77) then
        tmp = (sinh(y) / y) * (1.0d0 + ((x * x) * (-0.5d0)))
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.cos(x) * (1.0 + ((y * y) * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
	double tmp;
	if (y <= 0.28) {
		tmp = t_0;
	} else if (y <= 3.9e+77) {
		tmp = (Math.sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y):
	t_0 = math.cos(x) * (1.0 + ((y * y) * (0.16666666666666666 + ((y * y) * 0.008333333333333333))))
	tmp = 0
	if y <= 0.28:
		tmp = t_0
	elif y <= 3.9e+77:
		tmp = (math.sinh(y) / y) * (1.0 + ((x * x) * -0.5))
	else:
		tmp = t_0
	return tmp
function code(x, y)
	t_0 = Float64(cos(x) * Float64(1.0 + Float64(Float64(y * y) * Float64(0.16666666666666666 + Float64(Float64(y * y) * 0.008333333333333333)))))
	tmp = 0.0
	if (y <= 0.28)
		tmp = t_0;
	elseif (y <= 3.9e+77)
		tmp = Float64(Float64(sinh(y) / y) * Float64(1.0 + Float64(Float64(x * x) * -0.5)));
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = cos(x) * (1.0 + ((y * y) * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
	tmp = 0.0;
	if (y <= 0.28)
		tmp = t_0;
	elseif (y <= 3.9e+77)
		tmp = (sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Cos[x], $MachinePrecision] * N[(1.0 + N[(N[(y * y), $MachinePrecision] * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 0.28], t$95$0, If[LessEqual[y, 3.9e+77], N[(N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision] * N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \cos x \cdot \left(1 + \left(y \cdot y\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\
\mathbf{if}\;y \leq 0.28:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq 3.9 \cdot 10^{+77}:\\
\;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\

\mathbf{else}:\\
\;\;\;\;t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < 0.28000000000000003 or 3.8999999999999998e77 < y

    1. Initial program 100.0%

      \[\cos x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0

      \[\leadsto \color{blue}{\cos x + {y}^{2} \cdot \left(\frac{1}{120} \cdot \left({y}^{2} \cdot \cos x\right) + \frac{1}{6} \cdot \cos x\right)} \]
    4. Step-by-step derivation
      1. *-rgt-identityN/A

        \[\leadsto \cos x \cdot 1 + \color{blue}{{y}^{2}} \cdot \left(\frac{1}{120} \cdot \left({y}^{2} \cdot \cos x\right) + \frac{1}{6} \cdot \cos x\right) \]
      2. *-commutativeN/A

        \[\leadsto \cos x \cdot 1 + \left(\frac{1}{120} \cdot \left({y}^{2} \cdot \cos x\right) + \frac{1}{6} \cdot \cos x\right) \cdot \color{blue}{{y}^{2}} \]
      3. associate-*r*N/A

        \[\leadsto \cos x \cdot 1 + \left(\left(\frac{1}{120} \cdot {y}^{2}\right) \cdot \cos x + \frac{1}{6} \cdot \cos x\right) \cdot {y}^{2} \]
      4. distribute-rgt-outN/A

        \[\leadsto \cos x \cdot 1 + \left(\cos x \cdot \left(\frac{1}{120} \cdot {y}^{2} + \frac{1}{6}\right)\right) \cdot {\color{blue}{y}}^{2} \]
      5. +-commutativeN/A

        \[\leadsto \cos x \cdot 1 + \left(\cos x \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right) \cdot {y}^{2} \]
      6. associate-*l*N/A

        \[\leadsto \cos x \cdot 1 + \cos x \cdot \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot {y}^{2}\right)} \]
      7. *-commutativeN/A

        \[\leadsto \cos x \cdot 1 + \cos x \cdot \left({y}^{2} \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right) \]
      8. distribute-lft-inN/A

        \[\leadsto \cos x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)} \]
      9. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\cos x, \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
      10. cos-lowering-cos.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \left(\color{blue}{1} + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right) \]
      11. +-lowering-+.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
      12. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
      13. unpow2N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right)\right) \]
      14. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right)\right) \]
      15. +-lowering-+.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
      16. *-commutativeN/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
      17. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
    5. Simplified94.9%

      \[\leadsto \color{blue}{\cos x \cdot \left(1 + \left(y \cdot y\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)} \]

    if 0.28000000000000003 < y < 3.8999999999999998e77

    1. Initial program 100.0%

      \[\cos x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      3. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      4. unpow2N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      5. *-lowering-*.f6493.8%

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
    5. Simplified93.8%

      \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification94.8%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 0.28:\\ \;\;\;\;\cos x \cdot \left(1 + \left(y \cdot y\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\ \mathbf{elif}\;y \leq 3.9 \cdot 10^{+77}:\\ \;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\ \mathbf{else}:\\ \;\;\;\;\cos x \cdot \left(1 + \left(y \cdot y\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 85.2% accurate, 1.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\ \mathbf{if}\;y \leq 0.23:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+95}:\\ \;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{+154}:\\ \;\;\;\;y \cdot \left(y \cdot \left(0.16666666666666666 + y \cdot \left(y \cdot 0.008333333333333333\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (cos x) (+ 1.0 (* y (* y 0.16666666666666666))))))
   (if (<= y 0.23)
     t_0
     (if (<= y 2.7e+95)
       (* (/ (sinh y) y) (+ 1.0 (* (* x x) -0.5)))
       (if (<= y 3.3e+154)
         (* y (* y (+ 0.16666666666666666 (* y (* y 0.008333333333333333)))))
         t_0)))))
double code(double x, double y) {
	double t_0 = cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
	double tmp;
	if (y <= 0.23) {
		tmp = t_0;
	} else if (y <= 2.7e+95) {
		tmp = (sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	} else if (y <= 3.3e+154) {
		tmp = y * (y * (0.16666666666666666 + (y * (y * 0.008333333333333333))));
	} else {
		tmp = t_0;
	}
	return tmp;
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8) :: t_0
    real(8) :: tmp
    t_0 = cos(x) * (1.0d0 + (y * (y * 0.16666666666666666d0)))
    if (y <= 0.23d0) then
        tmp = t_0
    else if (y <= 2.7d+95) then
        tmp = (sinh(y) / y) * (1.0d0 + ((x * x) * (-0.5d0)))
    else if (y <= 3.3d+154) then
        tmp = y * (y * (0.16666666666666666d0 + (y * (y * 0.008333333333333333d0))))
    else
        tmp = t_0
    end if
    code = tmp
end function
public static double code(double x, double y) {
	double t_0 = Math.cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
	double tmp;
	if (y <= 0.23) {
		tmp = t_0;
	} else if (y <= 2.7e+95) {
		tmp = (Math.sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	} else if (y <= 3.3e+154) {
		tmp = y * (y * (0.16666666666666666 + (y * (y * 0.008333333333333333))));
	} else {
		tmp = t_0;
	}
	return tmp;
}
def code(x, y):
	t_0 = math.cos(x) * (1.0 + (y * (y * 0.16666666666666666)))
	tmp = 0
	if y <= 0.23:
		tmp = t_0
	elif y <= 2.7e+95:
		tmp = (math.sinh(y) / y) * (1.0 + ((x * x) * -0.5))
	elif y <= 3.3e+154:
		tmp = y * (y * (0.16666666666666666 + (y * (y * 0.008333333333333333))))
	else:
		tmp = t_0
	return tmp
function code(x, y)
	t_0 = Float64(cos(x) * Float64(1.0 + Float64(y * Float64(y * 0.16666666666666666))))
	tmp = 0.0
	if (y <= 0.23)
		tmp = t_0;
	elseif (y <= 2.7e+95)
		tmp = Float64(Float64(sinh(y) / y) * Float64(1.0 + Float64(Float64(x * x) * -0.5)));
	elseif (y <= 3.3e+154)
		tmp = Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(y * Float64(y * 0.008333333333333333)))));
	else
		tmp = t_0;
	end
	return tmp
end
function tmp_2 = code(x, y)
	t_0 = cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
	tmp = 0.0;
	if (y <= 0.23)
		tmp = t_0;
	elseif (y <= 2.7e+95)
		tmp = (sinh(y) / y) * (1.0 + ((x * x) * -0.5));
	elseif (y <= 3.3e+154)
		tmp = y * (y * (0.16666666666666666 + (y * (y * 0.008333333333333333))));
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end
code[x_, y_] := Block[{t$95$0 = N[(N[Cos[x], $MachinePrecision] * N[(1.0 + N[(y * N[(y * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 0.23], t$95$0, If[LessEqual[y, 2.7e+95], N[(N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision] * N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 3.3e+154], N[(y * N[(y * N[(0.16666666666666666 + N[(y * N[(y * 0.008333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\
\mathbf{if}\;y \leq 0.23:\\
\;\;\;\;t\_0\\

\mathbf{elif}\;y \leq 2.7 \cdot 10^{+95}:\\
\;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\

\mathbf{elif}\;y \leq 3.3 \cdot 10^{+154}:\\
\;\;\;\;y \cdot \left(y \cdot \left(0.16666666666666666 + y \cdot \left(y \cdot 0.008333333333333333\right)\right)\right)\\

\mathbf{else}:\\
\;\;\;\;t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if y < 0.23000000000000001 or 3.3e154 < y

    1. Initial program 100.0%

      \[\cos x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0

      \[\leadsto \color{blue}{\cos x + \frac{1}{6} \cdot \left({y}^{2} \cdot \cos x\right)} \]
    4. Step-by-step derivation
      1. *-lft-identityN/A

        \[\leadsto 1 \cdot \cos x + \color{blue}{\frac{1}{6}} \cdot \left({y}^{2} \cdot \cos x\right) \]
      2. associate-*r*N/A

        \[\leadsto 1 \cdot \cos x + \left(\frac{1}{6} \cdot {y}^{2}\right) \cdot \color{blue}{\cos x} \]
      3. distribute-rgt-inN/A

        \[\leadsto \cos x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
      4. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\cos x, \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)}\right) \]
      5. cos-lowering-cos.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \left(\color{blue}{1} + \frac{1}{6} \cdot {y}^{2}\right)\right) \]
      6. +-lowering-+.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right)\right) \]
      7. unpow2N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(\frac{1}{6} \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right) \]
      8. associate-*r*N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(\left(\frac{1}{6} \cdot y\right) \cdot \color{blue}{y}\right)\right)\right) \]
      9. *-commutativeN/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\frac{1}{6} \cdot y\right)}\right)\right)\right) \]
      10. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} \cdot y\right)}\right)\right)\right) \]
      11. *-commutativeN/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\frac{1}{6}}\right)\right)\right)\right) \]
      12. *-lowering-*.f6487.1%

        \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\frac{1}{6}}\right)\right)\right)\right) \]
    5. Simplified87.1%

      \[\leadsto \color{blue}{\cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)} \]

    if 0.23000000000000001 < y < 2.7e95

    1. Initial program 100.0%

      \[\cos x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
    4. Step-by-step derivation
      1. +-lowering-+.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
      2. *-commutativeN/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      3. *-lowering-*.f64N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      4. unpow2N/A

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      5. *-lowering-*.f6494.7%

        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
    5. Simplified94.7%

      \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]

    if 2.7e95 < y < 3.3e154

    1. Initial program 100.0%

      \[\cos x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in x around 0

      \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
    4. Step-by-step derivation
      1. Simplified88.2%

        \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
      2. Taylor expanded in y around 0

        \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)} \]
      3. Step-by-step derivation
        1. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
        2. unpow2N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right) \]
        3. associate-*l*N/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
        4. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right)\right) \]
        5. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot y\right)}\right)\right) \]
        6. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
        7. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
        8. +-lowering-+.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
        9. *-commutativeN/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
        10. *-lowering-*.f64N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
        11. unpow2N/A

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
        12. *-lowering-*.f6488.2%

          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
      4. Simplified88.2%

        \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)} \]
      5. Taylor expanded in y around inf

        \[\leadsto \color{blue}{{y}^{4} \cdot \left(\frac{1}{120} + \frac{1}{6} \cdot \frac{1}{{y}^{2}}\right)} \]
      6. Step-by-step derivation
        1. metadata-evalN/A

          \[\leadsto {y}^{\left(2 \cdot 2\right)} \cdot \left(\frac{1}{120} + \frac{1}{6} \cdot \frac{1}{{y}^{2}}\right) \]
        2. pow-sqrN/A

          \[\leadsto \left({y}^{2} \cdot {y}^{2}\right) \cdot \left(\color{blue}{\frac{1}{120}} + \frac{1}{6} \cdot \frac{1}{{y}^{2}}\right) \]
        3. associate-*r*N/A

          \[\leadsto {y}^{2} \cdot \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{6} \cdot \frac{1}{{y}^{2}}\right)\right)} \]
        4. +-commutativeN/A

          \[\leadsto {y}^{2} \cdot \left({y}^{2} \cdot \left(\frac{1}{6} \cdot \frac{1}{{y}^{2}} + \color{blue}{\frac{1}{120}}\right)\right) \]
        5. distribute-rgt-inN/A

          \[\leadsto {y}^{2} \cdot \left(\left(\frac{1}{6} \cdot \frac{1}{{y}^{2}}\right) \cdot {y}^{2} + \color{blue}{\frac{1}{120} \cdot {y}^{2}}\right) \]
        6. associate-*l*N/A

          \[\leadsto {y}^{2} \cdot \left(\frac{1}{6} \cdot \left(\frac{1}{{y}^{2}} \cdot {y}^{2}\right) + \color{blue}{\frac{1}{120}} \cdot {y}^{2}\right) \]
        7. lft-mult-inverseN/A

          \[\leadsto {y}^{2} \cdot \left(\frac{1}{6} \cdot 1 + \frac{1}{120} \cdot {y}^{2}\right) \]
        8. metadata-evalN/A

          \[\leadsto {y}^{2} \cdot \left(\frac{1}{6} + \color{blue}{\frac{1}{120}} \cdot {y}^{2}\right) \]
        9. unpow2N/A

          \[\leadsto \left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right) \]
        10. associate-*l*N/A

          \[\leadsto y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)} \]
        11. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
        12. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right) \]
        13. +-lowering-+.f64N/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
        14. unpow2N/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left(\frac{1}{120} \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
        15. associate-*r*N/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left(\left(\frac{1}{120} \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
        16. *-commutativeN/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{\left(\frac{1}{120} \cdot y\right)}\right)\right)\right)\right) \]
        17. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{120} \cdot y\right)}\right)\right)\right)\right) \]
        18. *-commutativeN/A

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
        19. *-lowering-*.f6488.2%

          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
      7. Simplified88.2%

        \[\leadsto \color{blue}{y \cdot \left(y \cdot \left(0.16666666666666666 + y \cdot \left(y \cdot 0.008333333333333333\right)\right)\right)} \]
    5. Recombined 3 regimes into one program.
    6. Final simplification87.7%

      \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 0.23:\\ \;\;\;\;\cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\ \mathbf{elif}\;y \leq 2.7 \cdot 10^{+95}:\\ \;\;\;\;\frac{\sinh y}{y} \cdot \left(1 + \left(x \cdot x\right) \cdot -0.5\right)\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{+154}:\\ \;\;\;\;y \cdot \left(y \cdot \left(0.16666666666666666 + y \cdot \left(y \cdot 0.008333333333333333\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\ \end{array} \]
    7. Add Preprocessing

    Alternative 4: 85.1% accurate, 1.7× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\ \mathbf{if}\;y \leq 0.046:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 3.3 \cdot 10^{+154}:\\ \;\;\;\;\frac{\sinh y}{y}\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (let* ((t_0 (* (cos x) (+ 1.0 (* y (* y 0.16666666666666666))))))
       (if (<= y 0.046) t_0 (if (<= y 3.3e+154) (/ (sinh y) y) t_0))))
    double code(double x, double y) {
    	double t_0 = cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
    	double tmp;
    	if (y <= 0.046) {
    		tmp = t_0;
    	} else if (y <= 3.3e+154) {
    		tmp = sinh(y) / y;
    	} else {
    		tmp = t_0;
    	}
    	return tmp;
    }
    
    real(8) function code(x, y)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        real(8) :: t_0
        real(8) :: tmp
        t_0 = cos(x) * (1.0d0 + (y * (y * 0.16666666666666666d0)))
        if (y <= 0.046d0) then
            tmp = t_0
        else if (y <= 3.3d+154) then
            tmp = sinh(y) / y
        else
            tmp = t_0
        end if
        code = tmp
    end function
    
    public static double code(double x, double y) {
    	double t_0 = Math.cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
    	double tmp;
    	if (y <= 0.046) {
    		tmp = t_0;
    	} else if (y <= 3.3e+154) {
    		tmp = Math.sinh(y) / y;
    	} else {
    		tmp = t_0;
    	}
    	return tmp;
    }
    
    def code(x, y):
    	t_0 = math.cos(x) * (1.0 + (y * (y * 0.16666666666666666)))
    	tmp = 0
    	if y <= 0.046:
    		tmp = t_0
    	elif y <= 3.3e+154:
    		tmp = math.sinh(y) / y
    	else:
    		tmp = t_0
    	return tmp
    
    function code(x, y)
    	t_0 = Float64(cos(x) * Float64(1.0 + Float64(y * Float64(y * 0.16666666666666666))))
    	tmp = 0.0
    	if (y <= 0.046)
    		tmp = t_0;
    	elseif (y <= 3.3e+154)
    		tmp = Float64(sinh(y) / y);
    	else
    		tmp = t_0;
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y)
    	t_0 = cos(x) * (1.0 + (y * (y * 0.16666666666666666)));
    	tmp = 0.0;
    	if (y <= 0.046)
    		tmp = t_0;
    	elseif (y <= 3.3e+154)
    		tmp = sinh(y) / y;
    	else
    		tmp = t_0;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_] := Block[{t$95$0 = N[(N[Cos[x], $MachinePrecision] * N[(1.0 + N[(y * N[(y * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 0.046], t$95$0, If[LessEqual[y, 3.3e+154], N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision], t$95$0]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_0 := \cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)\\
    \mathbf{if}\;y \leq 0.046:\\
    \;\;\;\;t\_0\\
    
    \mathbf{elif}\;y \leq 3.3 \cdot 10^{+154}:\\
    \;\;\;\;\frac{\sinh y}{y}\\
    
    \mathbf{else}:\\
    \;\;\;\;t\_0\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 2 regimes
    2. if y < 0.045999999999999999 or 3.3e154 < y

      1. Initial program 100.0%

        \[\cos x \cdot \frac{\sinh y}{y} \]
      2. Add Preprocessing
      3. Taylor expanded in y around 0

        \[\leadsto \color{blue}{\cos x + \frac{1}{6} \cdot \left({y}^{2} \cdot \cos x\right)} \]
      4. Step-by-step derivation
        1. *-lft-identityN/A

          \[\leadsto 1 \cdot \cos x + \color{blue}{\frac{1}{6}} \cdot \left({y}^{2} \cdot \cos x\right) \]
        2. associate-*r*N/A

          \[\leadsto 1 \cdot \cos x + \left(\frac{1}{6} \cdot {y}^{2}\right) \cdot \color{blue}{\cos x} \]
        3. distribute-rgt-inN/A

          \[\leadsto \cos x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
        4. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\cos x, \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)}\right) \]
        5. cos-lowering-cos.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \left(\color{blue}{1} + \frac{1}{6} \cdot {y}^{2}\right)\right) \]
        6. +-lowering-+.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right)\right) \]
        7. unpow2N/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(\frac{1}{6} \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right) \]
        8. associate-*r*N/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(\left(\frac{1}{6} \cdot y\right) \cdot \color{blue}{y}\right)\right)\right) \]
        9. *-commutativeN/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(\frac{1}{6} \cdot y\right)}\right)\right)\right) \]
        10. *-lowering-*.f64N/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} \cdot y\right)}\right)\right)\right) \]
        11. *-commutativeN/A

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\frac{1}{6}}\right)\right)\right)\right) \]
        12. *-lowering-*.f6487.1%

          \[\leadsto \mathsf{*.f64}\left(\mathsf{cos.f64}\left(x\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\frac{1}{6}}\right)\right)\right)\right) \]
      5. Simplified87.1%

        \[\leadsto \color{blue}{\cos x \cdot \left(1 + y \cdot \left(y \cdot 0.16666666666666666\right)\right)} \]

      if 0.045999999999999999 < y < 3.3e154

      1. Initial program 100.0%

        \[\cos x \cdot \frac{\sinh y}{y} \]
      2. Add Preprocessing
      3. Taylor expanded in x around 0

        \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
      4. Step-by-step derivation
        1. Simplified83.3%

          \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
        2. Step-by-step derivation
          1. *-lft-identityN/A

            \[\leadsto \frac{\sinh y}{\color{blue}{y}} \]
          2. /-lowering-/.f64N/A

            \[\leadsto \mathsf{/.f64}\left(\sinh y, \color{blue}{y}\right) \]
          3. sinh-lowering-sinh.f6483.3%

            \[\leadsto \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right) \]
        3. Applied egg-rr83.3%

          \[\leadsto \color{blue}{\frac{\sinh y}{y}} \]
      5. Recombined 2 regimes into one program.
      6. Add Preprocessing

      Alternative 5: 69.9% accurate, 1.9× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 0.009:\\ \;\;\;\;\cos x\\ \mathbf{else}:\\ \;\;\;\;\frac{\sinh y}{y}\\ \end{array} \end{array} \]
      (FPCore (x y) :precision binary64 (if (<= y 0.009) (cos x) (/ (sinh y) y)))
      double code(double x, double y) {
      	double tmp;
      	if (y <= 0.009) {
      		tmp = cos(x);
      	} else {
      		tmp = sinh(y) / y;
      	}
      	return tmp;
      }
      
      real(8) function code(x, y)
          real(8), intent (in) :: x
          real(8), intent (in) :: y
          real(8) :: tmp
          if (y <= 0.009d0) then
              tmp = cos(x)
          else
              tmp = sinh(y) / y
          end if
          code = tmp
      end function
      
      public static double code(double x, double y) {
      	double tmp;
      	if (y <= 0.009) {
      		tmp = Math.cos(x);
      	} else {
      		tmp = Math.sinh(y) / y;
      	}
      	return tmp;
      }
      
      def code(x, y):
      	tmp = 0
      	if y <= 0.009:
      		tmp = math.cos(x)
      	else:
      		tmp = math.sinh(y) / y
      	return tmp
      
      function code(x, y)
      	tmp = 0.0
      	if (y <= 0.009)
      		tmp = cos(x);
      	else
      		tmp = Float64(sinh(y) / y);
      	end
      	return tmp
      end
      
      function tmp_2 = code(x, y)
      	tmp = 0.0;
      	if (y <= 0.009)
      		tmp = cos(x);
      	else
      		tmp = sinh(y) / y;
      	end
      	tmp_2 = tmp;
      end
      
      code[x_, y_] := If[LessEqual[y, 0.009], N[Cos[x], $MachinePrecision], N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      \mathbf{if}\;y \leq 0.009:\\
      \;\;\;\;\cos x\\
      
      \mathbf{else}:\\
      \;\;\;\;\frac{\sinh y}{y}\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if y < 0.00899999999999999932

        1. Initial program 100.0%

          \[\cos x \cdot \frac{\sinh y}{y} \]
        2. Add Preprocessing
        3. Taylor expanded in y around 0

          \[\leadsto \color{blue}{\cos x} \]
        4. Step-by-step derivation
          1. cos-lowering-cos.f6465.6%

            \[\leadsto \mathsf{cos.f64}\left(x\right) \]
        5. Simplified65.6%

          \[\leadsto \color{blue}{\cos x} \]

        if 0.00899999999999999932 < y

        1. Initial program 100.0%

          \[\cos x \cdot \frac{\sinh y}{y} \]
        2. Add Preprocessing
        3. Taylor expanded in x around 0

          \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
        4. Step-by-step derivation
          1. Simplified85.1%

            \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
          2. Step-by-step derivation
            1. *-lft-identityN/A

              \[\leadsto \frac{\sinh y}{\color{blue}{y}} \]
            2. /-lowering-/.f64N/A

              \[\leadsto \mathsf{/.f64}\left(\sinh y, \color{blue}{y}\right) \]
            3. sinh-lowering-sinh.f6485.1%

              \[\leadsto \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right) \]
          3. Applied egg-rr85.1%

            \[\leadsto \color{blue}{\frac{\sinh y}{y}} \]
        5. Recombined 2 regimes into one program.
        6. Add Preprocessing

        Alternative 6: 68.4% accurate, 1.9× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_0 := 0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\\ t_1 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \mathbf{if}\;y \leq 1.7 \cdot 10^{+24}:\\ \;\;\;\;\cos x\\ \mathbf{elif}\;y \leq 10^{+52}:\\ \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(t\_0 \cdot t\_0\right) + -1}{y \cdot \left(y \cdot t\_0\right) + -1}\\ \mathbf{elif}\;y \leq 4.05 \cdot 10^{+96}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_1\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
        (FPCore (x y)
         :precision binary64
         (let* ((t_0
                 (+
                  0.16666666666666666
                  (*
                   (* y y)
                   (+ 0.008333333333333333 (* (* y y) 0.0001984126984126984)))))
                (t_1
                 (+ 1.0 (* y (* y (* y (* 0.0001984126984126984 (* y (* y y)))))))))
           (if (<= y 1.7e+24)
             (cos x)
             (if (<= y 1e+52)
               (/
                (+ (* (* (* y y) (* y y)) (* t_0 t_0)) -1.0)
                (+ (* y (* y t_0)) -1.0))
               (if (<= y 4.05e+96) (* (+ 1.0 (* (* x x) -0.5)) t_1) t_1)))))
        double code(double x, double y) {
        	double t_0 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
        	double t_1 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
        	double tmp;
        	if (y <= 1.7e+24) {
        		tmp = cos(x);
        	} else if (y <= 1e+52) {
        		tmp = ((((y * y) * (y * y)) * (t_0 * t_0)) + -1.0) / ((y * (y * t_0)) + -1.0);
        	} else if (y <= 4.05e+96) {
        		tmp = (1.0 + ((x * x) * -0.5)) * t_1;
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        real(8) function code(x, y)
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            real(8) :: t_0
            real(8) :: t_1
            real(8) :: tmp
            t_0 = 0.16666666666666666d0 + ((y * y) * (0.008333333333333333d0 + ((y * y) * 0.0001984126984126984d0)))
            t_1 = 1.0d0 + (y * (y * (y * (0.0001984126984126984d0 * (y * (y * y))))))
            if (y <= 1.7d+24) then
                tmp = cos(x)
            else if (y <= 1d+52) then
                tmp = ((((y * y) * (y * y)) * (t_0 * t_0)) + (-1.0d0)) / ((y * (y * t_0)) + (-1.0d0))
            else if (y <= 4.05d+96) then
                tmp = (1.0d0 + ((x * x) * (-0.5d0))) * t_1
            else
                tmp = t_1
            end if
            code = tmp
        end function
        
        public static double code(double x, double y) {
        	double t_0 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
        	double t_1 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
        	double tmp;
        	if (y <= 1.7e+24) {
        		tmp = Math.cos(x);
        	} else if (y <= 1e+52) {
        		tmp = ((((y * y) * (y * y)) * (t_0 * t_0)) + -1.0) / ((y * (y * t_0)) + -1.0);
        	} else if (y <= 4.05e+96) {
        		tmp = (1.0 + ((x * x) * -0.5)) * t_1;
        	} else {
        		tmp = t_1;
        	}
        	return tmp;
        }
        
        def code(x, y):
        	t_0 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))
        	t_1 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))))
        	tmp = 0
        	if y <= 1.7e+24:
        		tmp = math.cos(x)
        	elif y <= 1e+52:
        		tmp = ((((y * y) * (y * y)) * (t_0 * t_0)) + -1.0) / ((y * (y * t_0)) + -1.0)
        	elif y <= 4.05e+96:
        		tmp = (1.0 + ((x * x) * -0.5)) * t_1
        	else:
        		tmp = t_1
        	return tmp
        
        function code(x, y)
        	t_0 = Float64(0.16666666666666666 + Float64(Float64(y * y) * Float64(0.008333333333333333 + Float64(Float64(y * y) * 0.0001984126984126984))))
        	t_1 = Float64(1.0 + Float64(y * Float64(y * Float64(y * Float64(0.0001984126984126984 * Float64(y * Float64(y * y)))))))
        	tmp = 0.0
        	if (y <= 1.7e+24)
        		tmp = cos(x);
        	elseif (y <= 1e+52)
        		tmp = Float64(Float64(Float64(Float64(Float64(y * y) * Float64(y * y)) * Float64(t_0 * t_0)) + -1.0) / Float64(Float64(y * Float64(y * t_0)) + -1.0));
        	elseif (y <= 4.05e+96)
        		tmp = Float64(Float64(1.0 + Float64(Float64(x * x) * -0.5)) * t_1);
        	else
        		tmp = t_1;
        	end
        	return tmp
        end
        
        function tmp_2 = code(x, y)
        	t_0 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
        	t_1 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
        	tmp = 0.0;
        	if (y <= 1.7e+24)
        		tmp = cos(x);
        	elseif (y <= 1e+52)
        		tmp = ((((y * y) * (y * y)) * (t_0 * t_0)) + -1.0) / ((y * (y * t_0)) + -1.0);
        	elseif (y <= 4.05e+96)
        		tmp = (1.0 + ((x * x) * -0.5)) * t_1;
        	else
        		tmp = t_1;
        	end
        	tmp_2 = tmp;
        end
        
        code[x_, y_] := Block[{t$95$0 = N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * N[(0.008333333333333333 + N[(N[(y * y), $MachinePrecision] * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(1.0 + N[(y * N[(y * N[(y * N[(0.0001984126984126984 * N[(y * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 1.7e+24], N[Cos[x], $MachinePrecision], If[LessEqual[y, 1e+52], N[(N[(N[(N[(N[(y * y), $MachinePrecision] * N[(y * y), $MachinePrecision]), $MachinePrecision] * N[(t$95$0 * t$95$0), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision] / N[(N[(y * N[(y * t$95$0), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.05e+96], N[(N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision] * t$95$1), $MachinePrecision], t$95$1]]]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_0 := 0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\\
        t_1 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\
        \mathbf{if}\;y \leq 1.7 \cdot 10^{+24}:\\
        \;\;\;\;\cos x\\
        
        \mathbf{elif}\;y \leq 10^{+52}:\\
        \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(t\_0 \cdot t\_0\right) + -1}{y \cdot \left(y \cdot t\_0\right) + -1}\\
        
        \mathbf{elif}\;y \leq 4.05 \cdot 10^{+96}:\\
        \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_1\\
        
        \mathbf{else}:\\
        \;\;\;\;t\_1\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 4 regimes
        2. if y < 1.7e24

          1. Initial program 100.0%

            \[\cos x \cdot \frac{\sinh y}{y} \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \color{blue}{\cos x} \]
          4. Step-by-step derivation
            1. cos-lowering-cos.f6464.9%

              \[\leadsto \mathsf{cos.f64}\left(x\right) \]
          5. Simplified64.9%

            \[\leadsto \color{blue}{\cos x} \]

          if 1.7e24 < y < 9.9999999999999999e51

          1. Initial program 100.0%

            \[\cos x \cdot \frac{\sinh y}{y} \]
          2. Add Preprocessing
          3. Taylor expanded in x around 0

            \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
          4. Step-by-step derivation
            1. Simplified100.0%

              \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
            2. Taylor expanded in y around 0

              \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
            3. Step-by-step derivation
              1. +-lowering-+.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
              2. unpow2N/A

                \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
              3. associate-*l*N/A

                \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
              4. *-lowering-*.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
              5. *-lowering-*.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
              6. +-lowering-+.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
              7. *-lowering-*.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
              8. unpow2N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
              9. *-lowering-*.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
              10. +-lowering-+.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
              11. *-commutativeN/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
              12. *-lowering-*.f64N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
              13. unpow2N/A

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
              14. *-lowering-*.f648.6%

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
            4. Simplified8.6%

              \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
            5. Step-by-step derivation
              1. +-commutativeN/A

                \[\leadsto y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) + \color{blue}{1} \]
              2. flip-+N/A

                \[\leadsto \frac{\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) \cdot \left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) - 1 \cdot 1}{\color{blue}{y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) - 1}} \]
              3. /-lowering-/.f64N/A

                \[\leadsto \mathsf{/.f64}\left(\left(\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) \cdot \left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) - 1 \cdot 1\right), \color{blue}{\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) - 1\right)}\right) \]
            6. Applied egg-rr100.0%

              \[\leadsto \color{blue}{\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(\left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) - 1}{y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) - 1}} \]

            if 9.9999999999999999e51 < y < 4.0500000000000001e96

            1. Initial program 100.0%

              \[\cos x \cdot \frac{\sinh y}{y} \]
            2. Add Preprocessing
            3. Taylor expanded in x around 0

              \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
            4. Step-by-step derivation
              1. +-lowering-+.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
              2. *-commutativeN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
              3. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
              4. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
              5. *-lowering-*.f64100.0%

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
            5. Simplified100.0%

              \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
            6. Taylor expanded in y around 0

              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
            7. Step-by-step derivation
              1. +-lowering-+.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
              2. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right) \]
              3. associate-*l*N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
              4. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
              5. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
              6. +-lowering-+.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right)\right) \]
              7. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
              8. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
              9. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
              10. +-lowering-+.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right)\right) \]
              11. *-commutativeN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
              12. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
              13. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
              14. *-lowering-*.f64100.0%

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
            8. Simplified100.0%

              \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \color{blue}{\left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)} \]
            9. Taylor expanded in y around inf

              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right)\right) \]
            10. Step-by-step derivation
              1. metadata-evalN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right)\right) \]
              2. pow-sqrN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right)\right) \]
              3. associate-*l*N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
              4. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right)\right) \]
              5. associate-*r*N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
              6. *-commutativeN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
              7. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
              8. *-commutativeN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
              9. *-commutativeN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
              10. associate-*r*N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
              11. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              12. cube-multN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              13. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
              14. cube-multN/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              15. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              16. *-lowering-*.f64N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              17. unpow2N/A

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
              18. *-lowering-*.f64100.0%

                \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
            11. Simplified100.0%

              \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right)\right) \]

            if 4.0500000000000001e96 < y

            1. Initial program 100.0%

              \[\cos x \cdot \frac{\sinh y}{y} \]
            2. Add Preprocessing
            3. Taylor expanded in x around 0

              \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
            4. Step-by-step derivation
              1. Simplified87.3%

                \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
              2. Taylor expanded in y around 0

                \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
              3. Step-by-step derivation
                1. +-lowering-+.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                2. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                3. associate-*l*N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                4. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                5. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                6. +-lowering-+.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                7. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                8. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                9. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                10. +-lowering-+.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                11. *-commutativeN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                12. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                13. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                14. *-lowering-*.f6487.3%

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
              4. Simplified87.3%

                \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
              5. Taylor expanded in y around inf

                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right) \]
              6. Step-by-step derivation
                1. metadata-evalN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right) \]
                2. pow-sqrN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                3. associate-*l*N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right) \]
                4. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                5. associate-*r*N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                6. *-commutativeN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                7. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                8. *-commutativeN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                9. *-commutativeN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                10. associate-*r*N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                11. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                12. cube-multN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                13. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                14. cube-multN/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                15. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                16. *-lowering-*.f64N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                17. unpow2N/A

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                18. *-lowering-*.f6487.3%

                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
              7. Simplified87.3%

                \[\leadsto 1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right) \]
            5. Recombined 4 regimes into one program.
            6. Final simplification72.0%

              \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 1.7 \cdot 10^{+24}:\\ \;\;\;\;\cos x\\ \mathbf{elif}\;y \leq 10^{+52}:\\ \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(\left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) + -1}{y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) + -1}\\ \mathbf{elif}\;y \leq 4.05 \cdot 10^{+96}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \end{array} \]
            7. Add Preprocessing

            Alternative 7: 46.8% accurate, 3.3× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} t_0 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ t_1 := 0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\\ \mathbf{if}\;y \leq 9.5 \cdot 10^{+51}:\\ \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(t\_1 \cdot t\_1\right) + -1}{y \cdot \left(y \cdot t\_1\right) + -1}\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{+95}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_0\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]
            (FPCore (x y)
             :precision binary64
             (let* ((t_0 (+ 1.0 (* y (* y (* y (* 0.0001984126984126984 (* y (* y y))))))))
                    (t_1
                     (+
                      0.16666666666666666
                      (*
                       (* y y)
                       (+ 0.008333333333333333 (* (* y y) 0.0001984126984126984))))))
               (if (<= y 9.5e+51)
                 (/ (+ (* (* (* y y) (* y y)) (* t_1 t_1)) -1.0) (+ (* y (* y t_1)) -1.0))
                 (if (<= y 4.4e+95) (* (+ 1.0 (* (* x x) -0.5)) t_0) t_0))))
            double code(double x, double y) {
            	double t_0 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
            	double t_1 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
            	double tmp;
            	if (y <= 9.5e+51) {
            		tmp = ((((y * y) * (y * y)) * (t_1 * t_1)) + -1.0) / ((y * (y * t_1)) + -1.0);
            	} else if (y <= 4.4e+95) {
            		tmp = (1.0 + ((x * x) * -0.5)) * t_0;
            	} else {
            		tmp = t_0;
            	}
            	return tmp;
            }
            
            real(8) function code(x, y)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                real(8) :: t_0
                real(8) :: t_1
                real(8) :: tmp
                t_0 = 1.0d0 + (y * (y * (y * (0.0001984126984126984d0 * (y * (y * y))))))
                t_1 = 0.16666666666666666d0 + ((y * y) * (0.008333333333333333d0 + ((y * y) * 0.0001984126984126984d0)))
                if (y <= 9.5d+51) then
                    tmp = ((((y * y) * (y * y)) * (t_1 * t_1)) + (-1.0d0)) / ((y * (y * t_1)) + (-1.0d0))
                else if (y <= 4.4d+95) then
                    tmp = (1.0d0 + ((x * x) * (-0.5d0))) * t_0
                else
                    tmp = t_0
                end if
                code = tmp
            end function
            
            public static double code(double x, double y) {
            	double t_0 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
            	double t_1 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
            	double tmp;
            	if (y <= 9.5e+51) {
            		tmp = ((((y * y) * (y * y)) * (t_1 * t_1)) + -1.0) / ((y * (y * t_1)) + -1.0);
            	} else if (y <= 4.4e+95) {
            		tmp = (1.0 + ((x * x) * -0.5)) * t_0;
            	} else {
            		tmp = t_0;
            	}
            	return tmp;
            }
            
            def code(x, y):
            	t_0 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))))
            	t_1 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))
            	tmp = 0
            	if y <= 9.5e+51:
            		tmp = ((((y * y) * (y * y)) * (t_1 * t_1)) + -1.0) / ((y * (y * t_1)) + -1.0)
            	elif y <= 4.4e+95:
            		tmp = (1.0 + ((x * x) * -0.5)) * t_0
            	else:
            		tmp = t_0
            	return tmp
            
            function code(x, y)
            	t_0 = Float64(1.0 + Float64(y * Float64(y * Float64(y * Float64(0.0001984126984126984 * Float64(y * Float64(y * y)))))))
            	t_1 = Float64(0.16666666666666666 + Float64(Float64(y * y) * Float64(0.008333333333333333 + Float64(Float64(y * y) * 0.0001984126984126984))))
            	tmp = 0.0
            	if (y <= 9.5e+51)
            		tmp = Float64(Float64(Float64(Float64(Float64(y * y) * Float64(y * y)) * Float64(t_1 * t_1)) + -1.0) / Float64(Float64(y * Float64(y * t_1)) + -1.0));
            	elseif (y <= 4.4e+95)
            		tmp = Float64(Float64(1.0 + Float64(Float64(x * x) * -0.5)) * t_0);
            	else
            		tmp = t_0;
            	end
            	return tmp
            end
            
            function tmp_2 = code(x, y)
            	t_0 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
            	t_1 = 0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)));
            	tmp = 0.0;
            	if (y <= 9.5e+51)
            		tmp = ((((y * y) * (y * y)) * (t_1 * t_1)) + -1.0) / ((y * (y * t_1)) + -1.0);
            	elseif (y <= 4.4e+95)
            		tmp = (1.0 + ((x * x) * -0.5)) * t_0;
            	else
            		tmp = t_0;
            	end
            	tmp_2 = tmp;
            end
            
            code[x_, y_] := Block[{t$95$0 = N[(1.0 + N[(y * N[(y * N[(y * N[(0.0001984126984126984 * N[(y * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * N[(0.008333333333333333 + N[(N[(y * y), $MachinePrecision] * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 9.5e+51], N[(N[(N[(N[(N[(y * y), $MachinePrecision] * N[(y * y), $MachinePrecision]), $MachinePrecision] * N[(t$95$1 * t$95$1), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision] / N[(N[(y * N[(y * t$95$1), $MachinePrecision]), $MachinePrecision] + -1.0), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 4.4e+95], N[(N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision], t$95$0]]]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            t_0 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\
            t_1 := 0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\\
            \mathbf{if}\;y \leq 9.5 \cdot 10^{+51}:\\
            \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(t\_1 \cdot t\_1\right) + -1}{y \cdot \left(y \cdot t\_1\right) + -1}\\
            
            \mathbf{elif}\;y \leq 4.4 \cdot 10^{+95}:\\
            \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_0\\
            
            \mathbf{else}:\\
            \;\;\;\;t\_0\\
            
            
            \end{array}
            \end{array}
            
            Derivation
            1. Split input into 3 regimes
            2. if y < 9.4999999999999999e51

              1. Initial program 100.0%

                \[\cos x \cdot \frac{\sinh y}{y} \]
              2. Add Preprocessing
              3. Taylor expanded in x around 0

                \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
              4. Step-by-step derivation
                1. Simplified62.6%

                  \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                2. Taylor expanded in y around 0

                  \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                3. Step-by-step derivation
                  1. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                  2. unpow2N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                  3. associate-*l*N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                  4. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                  5. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                  6. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                  7. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                  8. unpow2N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                  9. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                  10. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                  11. *-commutativeN/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                  12. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                  13. unpow2N/A

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                  14. *-lowering-*.f6455.7%

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                4. Simplified55.7%

                  \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                5. Step-by-step derivation
                  1. +-commutativeN/A

                    \[\leadsto y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) + \color{blue}{1} \]
                  2. flip-+N/A

                    \[\leadsto \frac{\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) \cdot \left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) - 1 \cdot 1}{\color{blue}{y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) - 1}} \]
                  3. /-lowering-/.f64N/A

                    \[\leadsto \mathsf{/.f64}\left(\left(\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) \cdot \left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right) - 1 \cdot 1\right), \color{blue}{\left(y \cdot \left(y \cdot \left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right) - 1\right)}\right) \]
                6. Applied egg-rr39.5%

                  \[\leadsto \color{blue}{\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(\left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) - 1}{y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) - 1}} \]

                if 9.4999999999999999e51 < y < 4.3999999999999998e95

                1. Initial program 100.0%

                  \[\cos x \cdot \frac{\sinh y}{y} \]
                2. Add Preprocessing
                3. Taylor expanded in x around 0

                  \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                4. Step-by-step derivation
                  1. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
                  2. *-commutativeN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                  3. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                  4. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                  5. *-lowering-*.f64100.0%

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                5. Simplified100.0%

                  \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
                6. Taylor expanded in y around 0

                  \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                7. Step-by-step derivation
                  1. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                  2. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right) \]
                  3. associate-*l*N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
                  4. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
                  5. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                  6. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right)\right) \]
                  7. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                  8. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
                  9. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
                  10. +-lowering-+.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right)\right) \]
                  11. *-commutativeN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
                  12. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
                  13. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
                  14. *-lowering-*.f64100.0%

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
                8. Simplified100.0%

                  \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \color{blue}{\left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)} \]
                9. Taylor expanded in y around inf

                  \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right)\right) \]
                10. Step-by-step derivation
                  1. metadata-evalN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right)\right) \]
                  2. pow-sqrN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right)\right) \]
                  3. associate-*l*N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                  4. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right)\right) \]
                  5. associate-*r*N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                  6. *-commutativeN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
                  7. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
                  8. *-commutativeN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                  9. *-commutativeN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                  10. associate-*r*N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                  11. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  12. cube-multN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  13. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                  14. cube-multN/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  15. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  16. *-lowering-*.f64N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  17. unpow2N/A

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                  18. *-lowering-*.f64100.0%

                    \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                11. Simplified100.0%

                  \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right)\right) \]

                if 4.3999999999999998e95 < y

                1. Initial program 100.0%

                  \[\cos x \cdot \frac{\sinh y}{y} \]
                2. Add Preprocessing
                3. Taylor expanded in x around 0

                  \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                4. Step-by-step derivation
                  1. Simplified87.3%

                    \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                  2. Taylor expanded in y around 0

                    \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                  3. Step-by-step derivation
                    1. +-lowering-+.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                    2. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                    3. associate-*l*N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                    4. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                    5. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                    6. +-lowering-+.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                    7. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                    8. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                    9. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                    10. +-lowering-+.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                    11. *-commutativeN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                    12. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                    13. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                    14. *-lowering-*.f6487.3%

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                  4. Simplified87.3%

                    \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                  5. Taylor expanded in y around inf

                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right) \]
                  6. Step-by-step derivation
                    1. metadata-evalN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right) \]
                    2. pow-sqrN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                    3. associate-*l*N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right) \]
                    4. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                    5. associate-*r*N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                    6. *-commutativeN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                    7. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                    8. *-commutativeN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                    9. *-commutativeN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                    10. associate-*r*N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                    11. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    12. cube-multN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    13. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                    14. cube-multN/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    15. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    16. *-lowering-*.f64N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    17. unpow2N/A

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                    18. *-lowering-*.f6487.3%

                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                  7. Simplified87.3%

                    \[\leadsto 1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right) \]
                5. Recombined 3 regimes into one program.
                6. Final simplification52.3%

                  \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 9.5 \cdot 10^{+51}:\\ \;\;\;\;\frac{\left(\left(y \cdot y\right) \cdot \left(y \cdot y\right)\right) \cdot \left(\left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) + -1}{y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right) + -1}\\ \mathbf{elif}\;y \leq 4.4 \cdot 10^{+95}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \end{array} \]
                7. Add Preprocessing

                Alternative 8: 47.8% accurate, 4.1× speedup?

                \[\begin{array}{l} \\ \begin{array}{l} t_0 := 0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\\ t_1 := \left(y \cdot y\right) \cdot t\_0\\ t_2 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \mathbf{if}\;y \leq 5.5 \cdot 10^{+52}:\\ \;\;\;\;1 + \frac{\left(y \cdot y\right) \cdot \left(0.027777777777777776 - y \cdot \left(t\_1 \cdot \left(y \cdot t\_0\right)\right)\right)}{0.16666666666666666 - t\_1}\\ \mathbf{elif}\;y \leq 10^{+96}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_2\\ \mathbf{else}:\\ \;\;\;\;t\_2\\ \end{array} \end{array} \]
                (FPCore (x y)
                 :precision binary64
                 (let* ((t_0 (+ 0.008333333333333333 (* (* y y) 0.0001984126984126984)))
                        (t_1 (* (* y y) t_0))
                        (t_2
                         (+ 1.0 (* y (* y (* y (* 0.0001984126984126984 (* y (* y y)))))))))
                   (if (<= y 5.5e+52)
                     (+
                      1.0
                      (/
                       (* (* y y) (- 0.027777777777777776 (* y (* t_1 (* y t_0)))))
                       (- 0.16666666666666666 t_1)))
                     (if (<= y 1e+96) (* (+ 1.0 (* (* x x) -0.5)) t_2) t_2))))
                double code(double x, double y) {
                	double t_0 = 0.008333333333333333 + ((y * y) * 0.0001984126984126984);
                	double t_1 = (y * y) * t_0;
                	double t_2 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                	double tmp;
                	if (y <= 5.5e+52) {
                		tmp = 1.0 + (((y * y) * (0.027777777777777776 - (y * (t_1 * (y * t_0))))) / (0.16666666666666666 - t_1));
                	} else if (y <= 1e+96) {
                		tmp = (1.0 + ((x * x) * -0.5)) * t_2;
                	} else {
                		tmp = t_2;
                	}
                	return tmp;
                }
                
                real(8) function code(x, y)
                    real(8), intent (in) :: x
                    real(8), intent (in) :: y
                    real(8) :: t_0
                    real(8) :: t_1
                    real(8) :: t_2
                    real(8) :: tmp
                    t_0 = 0.008333333333333333d0 + ((y * y) * 0.0001984126984126984d0)
                    t_1 = (y * y) * t_0
                    t_2 = 1.0d0 + (y * (y * (y * (0.0001984126984126984d0 * (y * (y * y))))))
                    if (y <= 5.5d+52) then
                        tmp = 1.0d0 + (((y * y) * (0.027777777777777776d0 - (y * (t_1 * (y * t_0))))) / (0.16666666666666666d0 - t_1))
                    else if (y <= 1d+96) then
                        tmp = (1.0d0 + ((x * x) * (-0.5d0))) * t_2
                    else
                        tmp = t_2
                    end if
                    code = tmp
                end function
                
                public static double code(double x, double y) {
                	double t_0 = 0.008333333333333333 + ((y * y) * 0.0001984126984126984);
                	double t_1 = (y * y) * t_0;
                	double t_2 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                	double tmp;
                	if (y <= 5.5e+52) {
                		tmp = 1.0 + (((y * y) * (0.027777777777777776 - (y * (t_1 * (y * t_0))))) / (0.16666666666666666 - t_1));
                	} else if (y <= 1e+96) {
                		tmp = (1.0 + ((x * x) * -0.5)) * t_2;
                	} else {
                		tmp = t_2;
                	}
                	return tmp;
                }
                
                def code(x, y):
                	t_0 = 0.008333333333333333 + ((y * y) * 0.0001984126984126984)
                	t_1 = (y * y) * t_0
                	t_2 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))))
                	tmp = 0
                	if y <= 5.5e+52:
                		tmp = 1.0 + (((y * y) * (0.027777777777777776 - (y * (t_1 * (y * t_0))))) / (0.16666666666666666 - t_1))
                	elif y <= 1e+96:
                		tmp = (1.0 + ((x * x) * -0.5)) * t_2
                	else:
                		tmp = t_2
                	return tmp
                
                function code(x, y)
                	t_0 = Float64(0.008333333333333333 + Float64(Float64(y * y) * 0.0001984126984126984))
                	t_1 = Float64(Float64(y * y) * t_0)
                	t_2 = Float64(1.0 + Float64(y * Float64(y * Float64(y * Float64(0.0001984126984126984 * Float64(y * Float64(y * y)))))))
                	tmp = 0.0
                	if (y <= 5.5e+52)
                		tmp = Float64(1.0 + Float64(Float64(Float64(y * y) * Float64(0.027777777777777776 - Float64(y * Float64(t_1 * Float64(y * t_0))))) / Float64(0.16666666666666666 - t_1)));
                	elseif (y <= 1e+96)
                		tmp = Float64(Float64(1.0 + Float64(Float64(x * x) * -0.5)) * t_2);
                	else
                		tmp = t_2;
                	end
                	return tmp
                end
                
                function tmp_2 = code(x, y)
                	t_0 = 0.008333333333333333 + ((y * y) * 0.0001984126984126984);
                	t_1 = (y * y) * t_0;
                	t_2 = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                	tmp = 0.0;
                	if (y <= 5.5e+52)
                		tmp = 1.0 + (((y * y) * (0.027777777777777776 - (y * (t_1 * (y * t_0))))) / (0.16666666666666666 - t_1));
                	elseif (y <= 1e+96)
                		tmp = (1.0 + ((x * x) * -0.5)) * t_2;
                	else
                		tmp = t_2;
                	end
                	tmp_2 = tmp;
                end
                
                code[x_, y_] := Block[{t$95$0 = N[(0.008333333333333333 + N[(N[(y * y), $MachinePrecision] * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(N[(y * y), $MachinePrecision] * t$95$0), $MachinePrecision]}, Block[{t$95$2 = N[(1.0 + N[(y * N[(y * N[(y * N[(0.0001984126984126984 * N[(y * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, 5.5e+52], N[(1.0 + N[(N[(N[(y * y), $MachinePrecision] * N[(0.027777777777777776 - N[(y * N[(t$95$1 * N[(y * t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(0.16666666666666666 - t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 1e+96], N[(N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision] * t$95$2), $MachinePrecision], t$95$2]]]]]
                
                \begin{array}{l}
                
                \\
                \begin{array}{l}
                t_0 := 0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\\
                t_1 := \left(y \cdot y\right) \cdot t\_0\\
                t_2 := 1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\
                \mathbf{if}\;y \leq 5.5 \cdot 10^{+52}:\\
                \;\;\;\;1 + \frac{\left(y \cdot y\right) \cdot \left(0.027777777777777776 - y \cdot \left(t\_1 \cdot \left(y \cdot t\_0\right)\right)\right)}{0.16666666666666666 - t\_1}\\
                
                \mathbf{elif}\;y \leq 10^{+96}:\\
                \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot t\_2\\
                
                \mathbf{else}:\\
                \;\;\;\;t\_2\\
                
                
                \end{array}
                \end{array}
                
                Derivation
                1. Split input into 3 regimes
                2. if y < 5.49999999999999996e52

                  1. Initial program 100.0%

                    \[\cos x \cdot \frac{\sinh y}{y} \]
                  2. Add Preprocessing
                  3. Taylor expanded in x around 0

                    \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                  4. Step-by-step derivation
                    1. Simplified62.6%

                      \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                    2. Taylor expanded in y around 0

                      \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                    3. Step-by-step derivation
                      1. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                      2. unpow2N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                      3. associate-*l*N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                      4. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                      5. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                      6. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                      7. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                      8. unpow2N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                      9. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                      10. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                      11. *-commutativeN/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                      12. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                      13. unpow2N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                      14. *-lowering-*.f6455.7%

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                    4. Simplified55.7%

                      \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                    5. Step-by-step derivation
                      1. associate-*r*N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \color{blue}{\left(\frac{1}{6} + \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)}\right)\right) \]
                      2. flip-+N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \frac{\frac{1}{6} \cdot \frac{1}{6} - \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right) \cdot \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)}{\color{blue}{\frac{1}{6} - \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)}}\right)\right) \]
                      3. associate-*r/N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{\left(y \cdot y\right) \cdot \left(\frac{1}{6} \cdot \frac{1}{6} - \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right) \cdot \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)}{\color{blue}{\frac{1}{6} - \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)}}\right)\right) \]
                      4. /-lowering-/.f64N/A

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{/.f64}\left(\left(\left(y \cdot y\right) \cdot \left(\frac{1}{6} \cdot \frac{1}{6} - \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right) \cdot \left(\left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)\right)\right), \color{blue}{\left(\frac{1}{6} - \left(y \cdot y\right) \cdot \left(\frac{1}{120} + \left(y \cdot y\right) \cdot \frac{1}{5040}\right)\right)}\right)\right) \]
                    6. Applied egg-rr38.0%

                      \[\leadsto 1 + \color{blue}{\frac{\left(y \cdot y\right) \cdot \left(0.027777777777777776 - y \cdot \left(\left(y \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(\left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)}{0.16666666666666666 - \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)}} \]

                    if 5.49999999999999996e52 < y < 1.00000000000000005e96

                    1. Initial program 100.0%

                      \[\cos x \cdot \frac{\sinh y}{y} \]
                    2. Add Preprocessing
                    3. Taylor expanded in x around 0

                      \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                    4. Step-by-step derivation
                      1. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
                      2. *-commutativeN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                      3. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                      4. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                      5. *-lowering-*.f64100.0%

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                    5. Simplified100.0%

                      \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
                    6. Taylor expanded in y around 0

                      \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                    7. Step-by-step derivation
                      1. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                      2. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right) \]
                      3. associate-*l*N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
                      4. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right)\right) \]
                      5. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                      6. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right)\right) \]
                      7. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                      8. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
                      9. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right) \]
                      10. +-lowering-+.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right)\right) \]
                      11. *-commutativeN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
                      12. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right)\right) \]
                      13. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
                      14. *-lowering-*.f64100.0%

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right) \]
                    8. Simplified100.0%

                      \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \color{blue}{\left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)} \]
                    9. Taylor expanded in y around inf

                      \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right)\right) \]
                    10. Step-by-step derivation
                      1. metadata-evalN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right)\right) \]
                      2. pow-sqrN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right)\right) \]
                      3. associate-*l*N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                      4. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right)\right) \]
                      5. associate-*r*N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                      6. *-commutativeN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
                      7. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right)\right) \]
                      8. *-commutativeN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                      9. *-commutativeN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                      10. associate-*r*N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                      11. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      12. cube-multN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      13. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                      14. cube-multN/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      15. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      16. *-lowering-*.f64N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      17. unpow2N/A

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                      18. *-lowering-*.f64100.0%

                        \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right) \]
                    11. Simplified100.0%

                      \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right)\right) \]

                    if 1.00000000000000005e96 < y

                    1. Initial program 100.0%

                      \[\cos x \cdot \frac{\sinh y}{y} \]
                    2. Add Preprocessing
                    3. Taylor expanded in x around 0

                      \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                    4. Step-by-step derivation
                      1. Simplified87.3%

                        \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                      2. Taylor expanded in y around 0

                        \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                      3. Step-by-step derivation
                        1. +-lowering-+.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                        2. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                        3. associate-*l*N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                        4. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                        5. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                        6. +-lowering-+.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                        7. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                        8. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                        9. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                        10. +-lowering-+.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                        11. *-commutativeN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                        12. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                        13. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                        14. *-lowering-*.f6487.3%

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                      4. Simplified87.3%

                        \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                      5. Taylor expanded in y around inf

                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right) \]
                      6. Step-by-step derivation
                        1. metadata-evalN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right) \]
                        2. pow-sqrN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                        3. associate-*l*N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right) \]
                        4. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                        5. associate-*r*N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                        6. *-commutativeN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                        7. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                        8. *-commutativeN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                        9. *-commutativeN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                        10. associate-*r*N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                        11. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        12. cube-multN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        13. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                        14. cube-multN/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        15. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        16. *-lowering-*.f64N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        17. unpow2N/A

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                        18. *-lowering-*.f6487.3%

                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                      7. Simplified87.3%

                        \[\leadsto 1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right) \]
                    5. Recombined 3 regimes into one program.
                    6. Final simplification51.3%

                      \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 5.5 \cdot 10^{+52}:\\ \;\;\;\;1 + \frac{\left(y \cdot y\right) \cdot \left(0.027777777777777776 - y \cdot \left(\left(\left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right) \cdot \left(y \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)}{0.16666666666666666 - \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)}\\ \mathbf{elif}\;y \leq 10^{+96}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \end{array} \]
                    7. Add Preprocessing

                    Alternative 9: 59.7% accurate, 7.3× speedup?

                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;\frac{y \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)}{y}\\ \mathbf{else}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)\\ \end{array} \end{array} \]
                    (FPCore (x y)
                     :precision binary64
                     (if (<= x 8.2e+252)
                       (/
                        (*
                         y
                         (+
                          1.0
                          (*
                           y
                           (*
                            y
                            (+
                             0.16666666666666666
                             (*
                              (* y y)
                              (+ 0.008333333333333333 (* (* y y) 0.0001984126984126984))))))))
                        y)
                       (*
                        (+ 1.0 (* (* x x) -0.5))
                        (+
                         1.0
                         (* y (* y (+ 0.16666666666666666 (* (* y y) 0.008333333333333333))))))))
                    double code(double x, double y) {
                    	double tmp;
                    	if (x <= 8.2e+252) {
                    		tmp = (y * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))))))) / y;
                    	} else {
                    		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                    	}
                    	return tmp;
                    }
                    
                    real(8) function code(x, y)
                        real(8), intent (in) :: x
                        real(8), intent (in) :: y
                        real(8) :: tmp
                        if (x <= 8.2d+252) then
                            tmp = (y * (1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * (0.008333333333333333d0 + ((y * y) * 0.0001984126984126984d0)))))))) / y
                        else
                            tmp = (1.0d0 + ((x * x) * (-0.5d0))) * (1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * 0.008333333333333333d0)))))
                        end if
                        code = tmp
                    end function
                    
                    public static double code(double x, double y) {
                    	double tmp;
                    	if (x <= 8.2e+252) {
                    		tmp = (y * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))))))) / y;
                    	} else {
                    		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                    	}
                    	return tmp;
                    }
                    
                    def code(x, y):
                    	tmp = 0
                    	if x <= 8.2e+252:
                    		tmp = (y * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))))))) / y
                    	else:
                    		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))))
                    	return tmp
                    
                    function code(x, y)
                    	tmp = 0.0
                    	if (x <= 8.2e+252)
                    		tmp = Float64(Float64(y * Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * Float64(0.008333333333333333 + Float64(Float64(y * y) * 0.0001984126984126984)))))))) / y);
                    	else
                    		tmp = Float64(Float64(1.0 + Float64(Float64(x * x) * -0.5)) * Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * 0.008333333333333333))))));
                    	end
                    	return tmp
                    end
                    
                    function tmp_2 = code(x, y)
                    	tmp = 0.0;
                    	if (x <= 8.2e+252)
                    		tmp = (y * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + ((y * y) * 0.0001984126984126984)))))))) / y;
                    	else
                    		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                    	end
                    	tmp_2 = tmp;
                    end
                    
                    code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(N[(y * N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * N[(0.008333333333333333 + N[(N[(y * y), $MachinePrecision] * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision], N[(N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                    
                    \begin{array}{l}
                    
                    \\
                    \begin{array}{l}
                    \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                    \;\;\;\;\frac{y \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)}{y}\\
                    
                    \mathbf{else}:\\
                    \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)\\
                    
                    
                    \end{array}
                    \end{array}
                    
                    Derivation
                    1. Split input into 2 regimes
                    2. if x < 8.2000000000000007e252

                      1. Initial program 100.0%

                        \[\cos x \cdot \frac{\sinh y}{y} \]
                      2. Add Preprocessing
                      3. Taylor expanded in x around 0

                        \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                      4. Step-by-step derivation
                        1. Simplified70.6%

                          \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                        2. Step-by-step derivation
                          1. *-lft-identityN/A

                            \[\leadsto \frac{\sinh y}{\color{blue}{y}} \]
                          2. /-lowering-/.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\sinh y, \color{blue}{y}\right) \]
                          3. sinh-lowering-sinh.f6470.6%

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right) \]
                        3. Applied egg-rr70.6%

                          \[\leadsto \color{blue}{\frac{\sinh y}{y}} \]
                        4. Taylor expanded in y around 0

                          \[\leadsto \mathsf{/.f64}\left(\color{blue}{\left(y \cdot \left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)}, y\right) \]
                        5. Step-by-step derivation
                          1. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right), y\right) \]
                          2. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right), y\right) \]
                          3. unpow2N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right), y\right) \]
                          4. associate-*l*N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \left(y \cdot \left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right), y\right) \]
                          5. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right), y\right) \]
                          6. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right), y\right) \]
                          7. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          8. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          9. unpow2N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          10. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          11. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left(\frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          12. *-commutativeN/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          13. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          14. unpow2N/A

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right), y\right) \]
                          15. *-lowering-*.f6466.7%

                            \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(y, \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right)\right), y\right) \]
                        6. Simplified66.7%

                          \[\leadsto \frac{\color{blue}{y \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)\right)}}{y} \]

                        if 8.2000000000000007e252 < x

                        1. Initial program 100.0%

                          \[\cos x \cdot \frac{\sinh y}{y} \]
                        2. Add Preprocessing
                        3. Taylor expanded in x around 0

                          \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                        4. Step-by-step derivation
                          1. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
                          2. *-commutativeN/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          3. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          4. unpow2N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          5. *-lowering-*.f6429.7%

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                        5. Simplified29.7%

                          \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
                        6. Taylor expanded in y around 0

                          \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
                        7. Step-by-step derivation
                          1. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
                          2. unpow2N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right)\right) \]
                          3. associate-*l*N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                          4. *-commutativeN/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                          5. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right) \]
                          6. *-commutativeN/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                          7. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                          8. +-lowering-+.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                          9. *-commutativeN/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right)\right) \]
                          10. *-lowering-*.f64N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right)\right) \]
                          11. unpow2N/A

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{120}\right)\right)\right)\right)\right)\right) \]
                          12. *-lowering-*.f6429.7%

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{120}\right)\right)\right)\right)\right)\right) \]
                        8. Simplified29.7%

                          \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \color{blue}{\left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)} \]
                      5. Recombined 2 regimes into one program.
                      6. Add Preprocessing

                      Alternative 10: 59.0% accurate, 7.9× speedup?

                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)\\ \end{array} \end{array} \]
                      (FPCore (x y)
                       :precision binary64
                       (if (<= x 8.2e+252)
                         (+
                          1.0
                          (*
                           y
                           (*
                            y
                            (+
                             0.16666666666666666
                             (*
                              (* y y)
                              (+ 0.008333333333333333 (* y (* y 0.0001984126984126984))))))))
                         (*
                          (+ 1.0 (* (* x x) -0.5))
                          (+
                           1.0
                           (* y (* y (+ 0.16666666666666666 (* (* y y) 0.008333333333333333))))))))
                      double code(double x, double y) {
                      	double tmp;
                      	if (x <= 8.2e+252) {
                      		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                      	} else {
                      		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                      	}
                      	return tmp;
                      }
                      
                      real(8) function code(x, y)
                          real(8), intent (in) :: x
                          real(8), intent (in) :: y
                          real(8) :: tmp
                          if (x <= 8.2d+252) then
                              tmp = 1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * (0.008333333333333333d0 + (y * (y * 0.0001984126984126984d0)))))))
                          else
                              tmp = (1.0d0 + ((x * x) * (-0.5d0))) * (1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * 0.008333333333333333d0)))))
                          end if
                          code = tmp
                      end function
                      
                      public static double code(double x, double y) {
                      	double tmp;
                      	if (x <= 8.2e+252) {
                      		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                      	} else {
                      		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                      	}
                      	return tmp;
                      }
                      
                      def code(x, y):
                      	tmp = 0
                      	if x <= 8.2e+252:
                      		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))))
                      	else:
                      		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))))
                      	return tmp
                      
                      function code(x, y)
                      	tmp = 0.0
                      	if (x <= 8.2e+252)
                      		tmp = Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * Float64(0.008333333333333333 + Float64(y * Float64(y * 0.0001984126984126984))))))));
                      	else
                      		tmp = Float64(Float64(1.0 + Float64(Float64(x * x) * -0.5)) * Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * 0.008333333333333333))))));
                      	end
                      	return tmp
                      end
                      
                      function tmp_2 = code(x, y)
                      	tmp = 0.0;
                      	if (x <= 8.2e+252)
                      		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                      	else
                      		tmp = (1.0 + ((x * x) * -0.5)) * (1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333)))));
                      	end
                      	tmp_2 = tmp;
                      end
                      
                      code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * N[(0.008333333333333333 + N[(y * N[(y * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 + N[(N[(x * x), $MachinePrecision] * -0.5), $MachinePrecision]), $MachinePrecision] * N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                      
                      \begin{array}{l}
                      
                      \\
                      \begin{array}{l}
                      \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                      \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\
                      
                      \mathbf{else}:\\
                      \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)\\
                      
                      
                      \end{array}
                      \end{array}
                      
                      Derivation
                      1. Split input into 2 regimes
                      2. if x < 8.2000000000000007e252

                        1. Initial program 100.0%

                          \[\cos x \cdot \frac{\sinh y}{y} \]
                        2. Add Preprocessing
                        3. Taylor expanded in x around 0

                          \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                        4. Step-by-step derivation
                          1. Simplified70.6%

                            \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                          2. Taylor expanded in y around 0

                            \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                          3. Step-by-step derivation
                            1. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                            2. unpow2N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                            3. associate-*l*N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                            4. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                            5. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                            6. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                            7. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                            8. unpow2N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                            9. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                            10. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                            11. *-commutativeN/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                            12. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                            13. unpow2N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                            14. *-lowering-*.f6465.2%

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                          4. Simplified65.2%

                            \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                          5. Step-by-step derivation
                            1. associate-*l*N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left(y \cdot \color{blue}{\left(y \cdot \frac{1}{5040}\right)}\right)\right)\right)\right)\right)\right)\right) \]
                            2. *-commutativeN/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left(\left(y \cdot \frac{1}{5040}\right) \cdot \color{blue}{y}\right)\right)\right)\right)\right)\right)\right) \]
                            3. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot \frac{1}{5040}\right), \color{blue}{y}\right)\right)\right)\right)\right)\right)\right) \]
                            4. *-lowering-*.f6465.2%

                              \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \frac{1}{5040}\right), y\right)\right)\right)\right)\right)\right)\right) \]
                          6. Applied egg-rr65.2%

                            \[\leadsto 1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \color{blue}{\left(y \cdot 0.0001984126984126984\right) \cdot y}\right)\right)\right) \]

                          if 8.2000000000000007e252 < x

                          1. Initial program 100.0%

                            \[\cos x \cdot \frac{\sinh y}{y} \]
                          2. Add Preprocessing
                          3. Taylor expanded in x around 0

                            \[\leadsto \mathsf{*.f64}\left(\color{blue}{\left(1 + \frac{-1}{2} \cdot {x}^{2}\right)}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          4. Step-by-step derivation
                            1. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot {x}^{2}\right)\right), \mathsf{/.f64}\left(\color{blue}{\mathsf{sinh.f64}\left(y\right)}, y\right)\right) \]
                            2. *-commutativeN/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \left({x}^{2} \cdot \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                            3. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left({x}^{2}\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                            4. unpow2N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                            5. *-lowering-*.f6429.7%

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          5. Simplified29.7%

                            \[\leadsto \color{blue}{\left(1 + \left(x \cdot x\right) \cdot -0.5\right)} \cdot \frac{\sinh y}{y} \]
                          6. Taylor expanded in y around 0

                            \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
                          7. Step-by-step derivation
                            1. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
                            2. unpow2N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right)\right) \]
                            3. associate-*l*N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                            4. *-commutativeN/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \left(y \cdot \left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                            5. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right) \]
                            6. *-commutativeN/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                            7. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                            8. +-lowering-+.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                            9. *-commutativeN/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right)\right) \]
                            10. *-lowering-*.f64N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right)\right) \]
                            11. unpow2N/A

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{120}\right)\right)\right)\right)\right)\right) \]
                            12. *-lowering-*.f6429.7%

                              \[\leadsto \mathsf{*.f64}\left(\mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{-1}{2}\right)\right), \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{120}\right)\right)\right)\right)\right)\right) \]
                          8. Simplified29.7%

                            \[\leadsto \left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \color{blue}{\left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)} \]
                        5. Recombined 2 regimes into one program.
                        6. Final simplification63.3%

                          \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 + \left(x \cdot x\right) \cdot -0.5\right) \cdot \left(1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\right)\\ \end{array} \]
                        7. Add Preprocessing

                        Alternative 11: 59.0% accurate, 8.5× speedup?

                        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \end{array} \]
                        (FPCore (x y)
                         :precision binary64
                         (if (<= x 8.2e+252)
                           (+
                            1.0
                            (*
                             y
                             (*
                              y
                              (+
                               0.16666666666666666
                               (*
                                (* y y)
                                (+ 0.008333333333333333 (* y (* y 0.0001984126984126984))))))))
                           (+ 1.0 (* x (* x -0.5)))))
                        double code(double x, double y) {
                        	double tmp;
                        	if (x <= 8.2e+252) {
                        		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                        	} else {
                        		tmp = 1.0 + (x * (x * -0.5));
                        	}
                        	return tmp;
                        }
                        
                        real(8) function code(x, y)
                            real(8), intent (in) :: x
                            real(8), intent (in) :: y
                            real(8) :: tmp
                            if (x <= 8.2d+252) then
                                tmp = 1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * (0.008333333333333333d0 + (y * (y * 0.0001984126984126984d0)))))))
                            else
                                tmp = 1.0d0 + (x * (x * (-0.5d0)))
                            end if
                            code = tmp
                        end function
                        
                        public static double code(double x, double y) {
                        	double tmp;
                        	if (x <= 8.2e+252) {
                        		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                        	} else {
                        		tmp = 1.0 + (x * (x * -0.5));
                        	}
                        	return tmp;
                        }
                        
                        def code(x, y):
                        	tmp = 0
                        	if x <= 8.2e+252:
                        		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))))
                        	else:
                        		tmp = 1.0 + (x * (x * -0.5))
                        	return tmp
                        
                        function code(x, y)
                        	tmp = 0.0
                        	if (x <= 8.2e+252)
                        		tmp = Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * Float64(0.008333333333333333 + Float64(y * Float64(y * 0.0001984126984126984))))))));
                        	else
                        		tmp = Float64(1.0 + Float64(x * Float64(x * -0.5)));
                        	end
                        	return tmp
                        end
                        
                        function tmp_2 = code(x, y)
                        	tmp = 0.0;
                        	if (x <= 8.2e+252)
                        		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * (0.008333333333333333 + (y * (y * 0.0001984126984126984)))))));
                        	else
                        		tmp = 1.0 + (x * (x * -0.5));
                        	end
                        	tmp_2 = tmp;
                        end
                        
                        code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * N[(0.008333333333333333 + N[(y * N[(y * 0.0001984126984126984), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(x * N[(x * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                        
                        \begin{array}{l}
                        
                        \\
                        \begin{array}{l}
                        \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                        \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\
                        
                        \mathbf{else}:\\
                        \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\
                        
                        
                        \end{array}
                        \end{array}
                        
                        Derivation
                        1. Split input into 2 regimes
                        2. if x < 8.2000000000000007e252

                          1. Initial program 100.0%

                            \[\cos x \cdot \frac{\sinh y}{y} \]
                          2. Add Preprocessing
                          3. Taylor expanded in x around 0

                            \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                          4. Step-by-step derivation
                            1. Simplified70.6%

                              \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                            2. Taylor expanded in y around 0

                              \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                            3. Step-by-step derivation
                              1. +-lowering-+.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                              2. unpow2N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                              3. associate-*l*N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                              4. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                              5. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                              6. +-lowering-+.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                              7. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                              8. unpow2N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                              9. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                              10. +-lowering-+.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                              11. *-commutativeN/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                              12. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                              13. unpow2N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                              14. *-lowering-*.f6465.2%

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                            4. Simplified65.2%

                              \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                            5. Step-by-step derivation
                              1. associate-*l*N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left(y \cdot \color{blue}{\left(y \cdot \frac{1}{5040}\right)}\right)\right)\right)\right)\right)\right)\right) \]
                              2. *-commutativeN/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left(\left(y \cdot \frac{1}{5040}\right) \cdot \color{blue}{y}\right)\right)\right)\right)\right)\right)\right) \]
                              3. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot \frac{1}{5040}\right), \color{blue}{y}\right)\right)\right)\right)\right)\right)\right) \]
                              4. *-lowering-*.f6465.2%

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \frac{1}{5040}\right), y\right)\right)\right)\right)\right)\right)\right) \]
                            6. Applied egg-rr65.2%

                              \[\leadsto 1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \color{blue}{\left(y \cdot 0.0001984126984126984\right) \cdot y}\right)\right)\right) \]

                            if 8.2000000000000007e252 < x

                            1. Initial program 100.0%

                              \[\cos x \cdot \frac{\sinh y}{y} \]
                            2. Add Preprocessing
                            3. Taylor expanded in y around 0

                              \[\leadsto \color{blue}{\cos x} \]
                            4. Step-by-step derivation
                              1. cos-lowering-cos.f6458.5%

                                \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                            5. Simplified58.5%

                              \[\leadsto \color{blue}{\cos x} \]
                            6. Taylor expanded in x around 0

                              \[\leadsto \color{blue}{1 + \frac{-1}{2} \cdot {x}^{2}} \]
                            7. Step-by-step derivation
                              1. +-lowering-+.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{-1}{2} \cdot {x}^{2}\right)}\right) \]
                              2. unpow2N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                              3. associate-*r*N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\frac{-1}{2} \cdot x\right) \cdot \color{blue}{x}\right)\right) \]
                              4. *-commutativeN/A

                                \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                              5. *-lowering-*.f64N/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                              6. *-commutativeN/A

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \left(x \cdot \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                              7. *-lowering-*.f6429.7%

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                            8. Simplified29.7%

                              \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot -0.5\right)} \]
                          5. Recombined 2 regimes into one program.
                          6. Final simplification63.3%

                            \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + y \cdot \left(y \cdot 0.0001984126984126984\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \]
                          7. Add Preprocessing

                          Alternative 12: 58.8% accurate, 10.2× speedup?

                          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \end{array} \]
                          (FPCore (x y)
                           :precision binary64
                           (if (<= x 8.2e+252)
                             (+ 1.0 (* y (* y (* y (* 0.0001984126984126984 (* y (* y y)))))))
                             (+ 1.0 (* x (* x -0.5)))))
                          double code(double x, double y) {
                          	double tmp;
                          	if (x <= 8.2e+252) {
                          		tmp = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                          	} else {
                          		tmp = 1.0 + (x * (x * -0.5));
                          	}
                          	return tmp;
                          }
                          
                          real(8) function code(x, y)
                              real(8), intent (in) :: x
                              real(8), intent (in) :: y
                              real(8) :: tmp
                              if (x <= 8.2d+252) then
                                  tmp = 1.0d0 + (y * (y * (y * (0.0001984126984126984d0 * (y * (y * y))))))
                              else
                                  tmp = 1.0d0 + (x * (x * (-0.5d0)))
                              end if
                              code = tmp
                          end function
                          
                          public static double code(double x, double y) {
                          	double tmp;
                          	if (x <= 8.2e+252) {
                          		tmp = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                          	} else {
                          		tmp = 1.0 + (x * (x * -0.5));
                          	}
                          	return tmp;
                          }
                          
                          def code(x, y):
                          	tmp = 0
                          	if x <= 8.2e+252:
                          		tmp = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))))
                          	else:
                          		tmp = 1.0 + (x * (x * -0.5))
                          	return tmp
                          
                          function code(x, y)
                          	tmp = 0.0
                          	if (x <= 8.2e+252)
                          		tmp = Float64(1.0 + Float64(y * Float64(y * Float64(y * Float64(0.0001984126984126984 * Float64(y * Float64(y * y)))))));
                          	else
                          		tmp = Float64(1.0 + Float64(x * Float64(x * -0.5)));
                          	end
                          	return tmp
                          end
                          
                          function tmp_2 = code(x, y)
                          	tmp = 0.0;
                          	if (x <= 8.2e+252)
                          		tmp = 1.0 + (y * (y * (y * (0.0001984126984126984 * (y * (y * y))))));
                          	else
                          		tmp = 1.0 + (x * (x * -0.5));
                          	end
                          	tmp_2 = tmp;
                          end
                          
                          code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(1.0 + N[(y * N[(y * N[(y * N[(0.0001984126984126984 * N[(y * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(x * N[(x * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                          
                          \begin{array}{l}
                          
                          \\
                          \begin{array}{l}
                          \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                          \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\
                          
                          \mathbf{else}:\\
                          \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\
                          
                          
                          \end{array}
                          \end{array}
                          
                          Derivation
                          1. Split input into 2 regimes
                          2. if x < 8.2000000000000007e252

                            1. Initial program 100.0%

                              \[\cos x \cdot \frac{\sinh y}{y} \]
                            2. Add Preprocessing
                            3. Taylor expanded in x around 0

                              \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                            4. Step-by-step derivation
                              1. Simplified70.6%

                                \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                              2. Taylor expanded in y around 0

                                \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)} \]
                              3. Step-by-step derivation
                                1. +-lowering-+.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right) \]
                                2. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right) \]
                                3. associate-*l*N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                                4. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)}\right)\right) \]
                                5. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right) \]
                                6. +-lowering-+.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)}\right)\right)\right)\right) \]
                                7. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                                8. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                                9. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \left(\color{blue}{\frac{1}{120}} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)\right)\right)\right) \]
                                10. +-lowering-+.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right)\right) \]
                                11. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                                12. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right)\right) \]
                                13. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                                14. *-lowering-*.f6465.2%

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \mathsf{+.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{5040}\right)\right)\right)\right)\right)\right)\right) \]
                              4. Simplified65.2%

                                \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot \left(0.008333333333333333 + \left(y \cdot y\right) \cdot 0.0001984126984126984\right)\right)\right)} \]
                              5. Taylor expanded in y around inf

                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{5040} \cdot {y}^{4}\right)}\right)\right)\right) \]
                              6. Step-by-step derivation
                                1. metadata-evalN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right)\right)\right) \]
                                2. pow-sqrN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\frac{1}{5040} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right)\right) \]
                                3. associate-*l*N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}}\right)\right)\right)\right) \]
                                4. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot \left(y \cdot \color{blue}{y}\right)\right)\right)\right)\right) \]
                                5. associate-*r*N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right) \cdot \color{blue}{y}\right)\right)\right)\right) \]
                                6. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                                7. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{5040} \cdot {y}^{2}\right) \cdot y\right)}\right)\right)\right)\right) \]
                                8. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{5040} \cdot {y}^{2}\right)}\right)\right)\right)\right)\right) \]
                                9. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(y \cdot \left({y}^{2} \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right)\right) \]
                                10. associate-*r*N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot {y}^{2}\right) \cdot \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                                11. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                12. cube-multN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \left({y}^{3} \cdot \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                13. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left({y}^{3}\right), \color{blue}{\frac{1}{5040}}\right)\right)\right)\right)\right) \]
                                14. cube-multN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                15. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot {y}^{2}\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                16. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left({y}^{2}\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                17. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \left(y \cdot y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                                18. *-lowering-*.f6465.2%

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, y\right)\right), \frac{1}{5040}\right)\right)\right)\right)\right) \]
                              7. Simplified65.2%

                                \[\leadsto 1 + y \cdot \left(y \cdot \color{blue}{\left(y \cdot \left(\left(y \cdot \left(y \cdot y\right)\right) \cdot 0.0001984126984126984\right)\right)}\right) \]

                              if 8.2000000000000007e252 < x

                              1. Initial program 100.0%

                                \[\cos x \cdot \frac{\sinh y}{y} \]
                              2. Add Preprocessing
                              3. Taylor expanded in y around 0

                                \[\leadsto \color{blue}{\cos x} \]
                              4. Step-by-step derivation
                                1. cos-lowering-cos.f6458.5%

                                  \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                              5. Simplified58.5%

                                \[\leadsto \color{blue}{\cos x} \]
                              6. Taylor expanded in x around 0

                                \[\leadsto \color{blue}{1 + \frac{-1}{2} \cdot {x}^{2}} \]
                              7. Step-by-step derivation
                                1. +-lowering-+.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{-1}{2} \cdot {x}^{2}\right)}\right) \]
                                2. unpow2N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                                3. associate-*r*N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\frac{-1}{2} \cdot x\right) \cdot \color{blue}{x}\right)\right) \]
                                4. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                5. *-lowering-*.f64N/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                6. *-commutativeN/A

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \left(x \cdot \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                7. *-lowering-*.f6429.7%

                                  \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                              8. Simplified29.7%

                                \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot -0.5\right)} \]
                            5. Recombined 2 regimes into one program.
                            6. Final simplification63.2%

                              \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(y \cdot \left(0.0001984126984126984 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \]
                            7. Add Preprocessing

                            Alternative 13: 47.9% accurate, 10.8× speedup?

                            \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 6.6 \cdot 10^{+92}:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{elif}\;x \leq 2.8 \cdot 10^{+244}:\\ \;\;\;\;0.041666666666666664 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \end{array} \]
                            (FPCore (x y)
                             :precision binary64
                             (if (<= x 6.6e+92)
                               (+ 1.0 (* (* y y) 0.16666666666666666))
                               (if (<= x 2.8e+244)
                                 (* 0.041666666666666664 (* (* x x) (* x x)))
                                 (+ 1.0 (* x (* x -0.5))))))
                            double code(double x, double y) {
                            	double tmp;
                            	if (x <= 6.6e+92) {
                            		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                            	} else if (x <= 2.8e+244) {
                            		tmp = 0.041666666666666664 * ((x * x) * (x * x));
                            	} else {
                            		tmp = 1.0 + (x * (x * -0.5));
                            	}
                            	return tmp;
                            }
                            
                            real(8) function code(x, y)
                                real(8), intent (in) :: x
                                real(8), intent (in) :: y
                                real(8) :: tmp
                                if (x <= 6.6d+92) then
                                    tmp = 1.0d0 + ((y * y) * 0.16666666666666666d0)
                                else if (x <= 2.8d+244) then
                                    tmp = 0.041666666666666664d0 * ((x * x) * (x * x))
                                else
                                    tmp = 1.0d0 + (x * (x * (-0.5d0)))
                                end if
                                code = tmp
                            end function
                            
                            public static double code(double x, double y) {
                            	double tmp;
                            	if (x <= 6.6e+92) {
                            		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                            	} else if (x <= 2.8e+244) {
                            		tmp = 0.041666666666666664 * ((x * x) * (x * x));
                            	} else {
                            		tmp = 1.0 + (x * (x * -0.5));
                            	}
                            	return tmp;
                            }
                            
                            def code(x, y):
                            	tmp = 0
                            	if x <= 6.6e+92:
                            		tmp = 1.0 + ((y * y) * 0.16666666666666666)
                            	elif x <= 2.8e+244:
                            		tmp = 0.041666666666666664 * ((x * x) * (x * x))
                            	else:
                            		tmp = 1.0 + (x * (x * -0.5))
                            	return tmp
                            
                            function code(x, y)
                            	tmp = 0.0
                            	if (x <= 6.6e+92)
                            		tmp = Float64(1.0 + Float64(Float64(y * y) * 0.16666666666666666));
                            	elseif (x <= 2.8e+244)
                            		tmp = Float64(0.041666666666666664 * Float64(Float64(x * x) * Float64(x * x)));
                            	else
                            		tmp = Float64(1.0 + Float64(x * Float64(x * -0.5)));
                            	end
                            	return tmp
                            end
                            
                            function tmp_2 = code(x, y)
                            	tmp = 0.0;
                            	if (x <= 6.6e+92)
                            		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                            	elseif (x <= 2.8e+244)
                            		tmp = 0.041666666666666664 * ((x * x) * (x * x));
                            	else
                            		tmp = 1.0 + (x * (x * -0.5));
                            	end
                            	tmp_2 = tmp;
                            end
                            
                            code[x_, y_] := If[LessEqual[x, 6.6e+92], N[(1.0 + N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision], If[LessEqual[x, 2.8e+244], N[(0.041666666666666664 * N[(N[(x * x), $MachinePrecision] * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(x * N[(x * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
                            
                            \begin{array}{l}
                            
                            \\
                            \begin{array}{l}
                            \mathbf{if}\;x \leq 6.6 \cdot 10^{+92}:\\
                            \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\
                            
                            \mathbf{elif}\;x \leq 2.8 \cdot 10^{+244}:\\
                            \;\;\;\;0.041666666666666664 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\\
                            
                            \mathbf{else}:\\
                            \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\
                            
                            
                            \end{array}
                            \end{array}
                            
                            Derivation
                            1. Split input into 3 regimes
                            2. if x < 6.59999999999999948e92

                              1. Initial program 100.0%

                                \[\cos x \cdot \frac{\sinh y}{y} \]
                              2. Add Preprocessing
                              3. Taylor expanded in x around 0

                                \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                              4. Step-by-step derivation
                                1. Simplified73.8%

                                  \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                2. Taylor expanded in y around 0

                                  \[\leadsto \color{blue}{1 + \frac{1}{6} \cdot {y}^{2}} \]
                                3. Step-by-step derivation
                                  1. +-lowering-+.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right) \]
                                  2. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right)\right) \]
                                  3. unpow2N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right)\right) \]
                                  4. *-lowering-*.f6452.9%

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right) \]
                                4. Simplified52.9%

                                  \[\leadsto \color{blue}{1 + 0.16666666666666666 \cdot \left(y \cdot y\right)} \]

                                if 6.59999999999999948e92 < x < 2.79999999999999991e244

                                1. Initial program 100.0%

                                  \[\cos x \cdot \frac{\sinh y}{y} \]
                                2. Add Preprocessing
                                3. Taylor expanded in y around 0

                                  \[\leadsto \color{blue}{\cos x} \]
                                4. Step-by-step derivation
                                  1. cos-lowering-cos.f6432.9%

                                    \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                5. Simplified32.9%

                                  \[\leadsto \color{blue}{\cos x} \]
                                6. Taylor expanded in x around 0

                                  \[\leadsto \color{blue}{1 + {x}^{2} \cdot \left(\frac{1}{24} \cdot {x}^{2} - \frac{1}{2}\right)} \]
                                7. Step-by-step derivation
                                  1. +-lowering-+.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({x}^{2} \cdot \left(\frac{1}{24} \cdot {x}^{2} - \frac{1}{2}\right)\right)}\right) \]
                                  2. unpow2N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \left(\left(x \cdot x\right) \cdot \left(\color{blue}{\frac{1}{24} \cdot {x}^{2}} - \frac{1}{2}\right)\right)\right) \]
                                  3. associate-*l*N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(x \cdot \left(\frac{1}{24} \cdot {x}^{2} - \frac{1}{2}\right)\right)}\right)\right) \]
                                  4. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(x \cdot \left(\frac{1}{24} \cdot {x}^{2} - \frac{1}{2}\right)\right)}\right)\right) \]
                                  5. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{1}{24} \cdot {x}^{2} - \frac{1}{2}\right)}\right)\right)\right) \]
                                  6. sub-negN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \left(\frac{1}{24} \cdot {x}^{2} + \color{blue}{\left(\mathsf{neg}\left(\frac{1}{2}\right)\right)}\right)\right)\right)\right) \]
                                  7. metadata-evalN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \left(\frac{1}{24} \cdot {x}^{2} + \frac{-1}{2}\right)\right)\right)\right) \]
                                  8. +-commutativeN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \left(\frac{-1}{2} + \color{blue}{\frac{1}{24} \cdot {x}^{2}}\right)\right)\right)\right) \]
                                  9. +-lowering-+.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \mathsf{+.f64}\left(\frac{-1}{2}, \color{blue}{\left(\frac{1}{24} \cdot {x}^{2}\right)}\right)\right)\right)\right) \]
                                  10. *-commutativeN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \mathsf{+.f64}\left(\frac{-1}{2}, \left({x}^{2} \cdot \color{blue}{\frac{1}{24}}\right)\right)\right)\right)\right) \]
                                  11. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \mathsf{+.f64}\left(\frac{-1}{2}, \mathsf{*.f64}\left(\left({x}^{2}\right), \color{blue}{\frac{1}{24}}\right)\right)\right)\right)\right) \]
                                  12. unpow2N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \mathsf{+.f64}\left(\frac{-1}{2}, \mathsf{*.f64}\left(\left(x \cdot x\right), \frac{1}{24}\right)\right)\right)\right)\right) \]
                                  13. *-lowering-*.f6446.7%

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \mathsf{+.f64}\left(\frac{-1}{2}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \frac{1}{24}\right)\right)\right)\right)\right) \]
                                8. Simplified46.7%

                                  \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot \left(-0.5 + \left(x \cdot x\right) \cdot 0.041666666666666664\right)\right)} \]
                                9. Taylor expanded in x around inf

                                  \[\leadsto \color{blue}{\frac{1}{24} \cdot {x}^{4}} \]
                                10. Step-by-step derivation
                                  1. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \color{blue}{\left({x}^{4}\right)}\right) \]
                                  2. metadata-evalN/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \left({x}^{\left(2 \cdot \color{blue}{2}\right)}\right)\right) \]
                                  3. pow-sqrN/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \left({x}^{2} \cdot \color{blue}{{x}^{2}}\right)\right) \]
                                  4. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \mathsf{*.f64}\left(\left({x}^{2}\right), \color{blue}{\left({x}^{2}\right)}\right)\right) \]
                                  5. unpow2N/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \mathsf{*.f64}\left(\left(x \cdot x\right), \left({\color{blue}{x}}^{2}\right)\right)\right) \]
                                  6. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \left({\color{blue}{x}}^{2}\right)\right)\right) \]
                                  7. unpow2N/A

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                                  8. *-lowering-*.f6446.7%

                                    \[\leadsto \mathsf{*.f64}\left(\frac{1}{24}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(x, x\right), \mathsf{*.f64}\left(x, \color{blue}{x}\right)\right)\right) \]
                                11. Simplified46.7%

                                  \[\leadsto \color{blue}{0.041666666666666664 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)} \]

                                if 2.79999999999999991e244 < x

                                1. Initial program 100.0%

                                  \[\cos x \cdot \frac{\sinh y}{y} \]
                                2. Add Preprocessing
                                3. Taylor expanded in y around 0

                                  \[\leadsto \color{blue}{\cos x} \]
                                4. Step-by-step derivation
                                  1. cos-lowering-cos.f6456.9%

                                    \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                5. Simplified56.9%

                                  \[\leadsto \color{blue}{\cos x} \]
                                6. Taylor expanded in x around 0

                                  \[\leadsto \color{blue}{1 + \frac{-1}{2} \cdot {x}^{2}} \]
                                7. Step-by-step derivation
                                  1. +-lowering-+.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{-1}{2} \cdot {x}^{2}\right)}\right) \]
                                  2. unpow2N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                                  3. associate-*r*N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\frac{-1}{2} \cdot x\right) \cdot \color{blue}{x}\right)\right) \]
                                  4. *-commutativeN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                  5. *-lowering-*.f64N/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                  6. *-commutativeN/A

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \left(x \cdot \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                  7. *-lowering-*.f6428.7%

                                    \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                8. Simplified28.7%

                                  \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot -0.5\right)} \]
                              5. Recombined 3 regimes into one program.
                              6. Final simplification50.5%

                                \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 6.6 \cdot 10^{+92}:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{elif}\;x \leq 2.8 \cdot 10^{+244}:\\ \;\;\;\;0.041666666666666664 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \]
                              7. Add Preprocessing

                              Alternative 14: 56.0% accurate, 11.4× speedup?

                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \end{array} \]
                              (FPCore (x y)
                               :precision binary64
                               (if (<= x 8.2e+252)
                                 (+ 1.0 (* y (* y (+ 0.16666666666666666 (* (* y y) 0.008333333333333333)))))
                                 (+ 1.0 (* x (* x -0.5)))))
                              double code(double x, double y) {
                              	double tmp;
                              	if (x <= 8.2e+252) {
                              		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
                              	} else {
                              		tmp = 1.0 + (x * (x * -0.5));
                              	}
                              	return tmp;
                              }
                              
                              real(8) function code(x, y)
                                  real(8), intent (in) :: x
                                  real(8), intent (in) :: y
                                  real(8) :: tmp
                                  if (x <= 8.2d+252) then
                                      tmp = 1.0d0 + (y * (y * (0.16666666666666666d0 + ((y * y) * 0.008333333333333333d0))))
                                  else
                                      tmp = 1.0d0 + (x * (x * (-0.5d0)))
                                  end if
                                  code = tmp
                              end function
                              
                              public static double code(double x, double y) {
                              	double tmp;
                              	if (x <= 8.2e+252) {
                              		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
                              	} else {
                              		tmp = 1.0 + (x * (x * -0.5));
                              	}
                              	return tmp;
                              }
                              
                              def code(x, y):
                              	tmp = 0
                              	if x <= 8.2e+252:
                              		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333))))
                              	else:
                              		tmp = 1.0 + (x * (x * -0.5))
                              	return tmp
                              
                              function code(x, y)
                              	tmp = 0.0
                              	if (x <= 8.2e+252)
                              		tmp = Float64(1.0 + Float64(y * Float64(y * Float64(0.16666666666666666 + Float64(Float64(y * y) * 0.008333333333333333)))));
                              	else
                              		tmp = Float64(1.0 + Float64(x * Float64(x * -0.5)));
                              	end
                              	return tmp
                              end
                              
                              function tmp_2 = code(x, y)
                              	tmp = 0.0;
                              	if (x <= 8.2e+252)
                              		tmp = 1.0 + (y * (y * (0.16666666666666666 + ((y * y) * 0.008333333333333333))));
                              	else
                              		tmp = 1.0 + (x * (x * -0.5));
                              	end
                              	tmp_2 = tmp;
                              end
                              
                              code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(1.0 + N[(y * N[(y * N[(0.16666666666666666 + N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(x * N[(x * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                              
                              \begin{array}{l}
                              
                              \\
                              \begin{array}{l}
                              \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                              \;\;\;\;1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)\\
                              
                              \mathbf{else}:\\
                              \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\
                              
                              
                              \end{array}
                              \end{array}
                              
                              Derivation
                              1. Split input into 2 regimes
                              2. if x < 8.2000000000000007e252

                                1. Initial program 100.0%

                                  \[\cos x \cdot \frac{\sinh y}{y} \]
                                2. Add Preprocessing
                                3. Taylor expanded in x around 0

                                  \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                4. Step-by-step derivation
                                  1. Simplified70.6%

                                    \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                  2. Taylor expanded in y around 0

                                    \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)} \]
                                  3. Step-by-step derivation
                                    1. +-lowering-+.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
                                    2. unpow2N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right) \]
                                    3. associate-*l*N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
                                    4. *-commutativeN/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right)\right) \]
                                    5. *-lowering-*.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot y\right)}\right)\right) \]
                                    6. *-commutativeN/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
                                    7. *-lowering-*.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
                                    8. +-lowering-+.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                                    9. *-commutativeN/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
                                    10. *-lowering-*.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
                                    11. unpow2N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
                                    12. *-lowering-*.f6462.0%

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
                                  4. Simplified62.0%

                                    \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)} \]

                                  if 8.2000000000000007e252 < x

                                  1. Initial program 100.0%

                                    \[\cos x \cdot \frac{\sinh y}{y} \]
                                  2. Add Preprocessing
                                  3. Taylor expanded in y around 0

                                    \[\leadsto \color{blue}{\cos x} \]
                                  4. Step-by-step derivation
                                    1. cos-lowering-cos.f6458.5%

                                      \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                  5. Simplified58.5%

                                    \[\leadsto \color{blue}{\cos x} \]
                                  6. Taylor expanded in x around 0

                                    \[\leadsto \color{blue}{1 + \frac{-1}{2} \cdot {x}^{2}} \]
                                  7. Step-by-step derivation
                                    1. +-lowering-+.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{-1}{2} \cdot {x}^{2}\right)}\right) \]
                                    2. unpow2N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                                    3. associate-*r*N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\frac{-1}{2} \cdot x\right) \cdot \color{blue}{x}\right)\right) \]
                                    4. *-commutativeN/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                    5. *-lowering-*.f64N/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                    6. *-commutativeN/A

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \left(x \cdot \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                    7. *-lowering-*.f6429.7%

                                      \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                  8. Simplified29.7%

                                    \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot -0.5\right)} \]
                                5. Recombined 2 regimes into one program.
                                6. Add Preprocessing

                                Alternative 15: 51.6% accurate, 14.6× speedup?

                                \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 0.0018:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(0.008333333333333333 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\\ \end{array} \end{array} \]
                                (FPCore (x y)
                                 :precision binary64
                                 (if (<= y 0.0018)
                                   (+ 1.0 (* (* y y) 0.16666666666666666))
                                   (* y (* 0.008333333333333333 (* y (* y y))))))
                                double code(double x, double y) {
                                	double tmp;
                                	if (y <= 0.0018) {
                                		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                	} else {
                                		tmp = y * (0.008333333333333333 * (y * (y * y)));
                                	}
                                	return tmp;
                                }
                                
                                real(8) function code(x, y)
                                    real(8), intent (in) :: x
                                    real(8), intent (in) :: y
                                    real(8) :: tmp
                                    if (y <= 0.0018d0) then
                                        tmp = 1.0d0 + ((y * y) * 0.16666666666666666d0)
                                    else
                                        tmp = y * (0.008333333333333333d0 * (y * (y * y)))
                                    end if
                                    code = tmp
                                end function
                                
                                public static double code(double x, double y) {
                                	double tmp;
                                	if (y <= 0.0018) {
                                		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                	} else {
                                		tmp = y * (0.008333333333333333 * (y * (y * y)));
                                	}
                                	return tmp;
                                }
                                
                                def code(x, y):
                                	tmp = 0
                                	if y <= 0.0018:
                                		tmp = 1.0 + ((y * y) * 0.16666666666666666)
                                	else:
                                		tmp = y * (0.008333333333333333 * (y * (y * y)))
                                	return tmp
                                
                                function code(x, y)
                                	tmp = 0.0
                                	if (y <= 0.0018)
                                		tmp = Float64(1.0 + Float64(Float64(y * y) * 0.16666666666666666));
                                	else
                                		tmp = Float64(y * Float64(0.008333333333333333 * Float64(y * Float64(y * y))));
                                	end
                                	return tmp
                                end
                                
                                function tmp_2 = code(x, y)
                                	tmp = 0.0;
                                	if (y <= 0.0018)
                                		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                	else
                                		tmp = y * (0.008333333333333333 * (y * (y * y)));
                                	end
                                	tmp_2 = tmp;
                                end
                                
                                code[x_, y_] := If[LessEqual[y, 0.0018], N[(1.0 + N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision], N[(y * N[(0.008333333333333333 * N[(y * N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                                
                                \begin{array}{l}
                                
                                \\
                                \begin{array}{l}
                                \mathbf{if}\;y \leq 0.0018:\\
                                \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\
                                
                                \mathbf{else}:\\
                                \;\;\;\;y \cdot \left(0.008333333333333333 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\\
                                
                                
                                \end{array}
                                \end{array}
                                
                                Derivation
                                1. Split input into 2 regimes
                                2. if y < 0.0018

                                  1. Initial program 100.0%

                                    \[\cos x \cdot \frac{\sinh y}{y} \]
                                  2. Add Preprocessing
                                  3. Taylor expanded in x around 0

                                    \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                  4. Step-by-step derivation
                                    1. Simplified60.9%

                                      \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                    2. Taylor expanded in y around 0

                                      \[\leadsto \color{blue}{1 + \frac{1}{6} \cdot {y}^{2}} \]
                                    3. Step-by-step derivation
                                      1. +-lowering-+.f64N/A

                                        \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right) \]
                                      2. *-lowering-*.f64N/A

                                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right)\right) \]
                                      3. unpow2N/A

                                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right)\right) \]
                                      4. *-lowering-*.f6449.1%

                                        \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right) \]
                                    4. Simplified49.1%

                                      \[\leadsto \color{blue}{1 + 0.16666666666666666 \cdot \left(y \cdot y\right)} \]

                                    if 0.0018 < y

                                    1. Initial program 100.0%

                                      \[\cos x \cdot \frac{\sinh y}{y} \]
                                    2. Add Preprocessing
                                    3. Taylor expanded in x around 0

                                      \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                    4. Step-by-step derivation
                                      1. Simplified85.1%

                                        \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                      2. Taylor expanded in y around 0

                                        \[\leadsto \color{blue}{1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)} \]
                                      3. Step-by-step derivation
                                        1. +-lowering-+.f64N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
                                        2. unpow2N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \left(\left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{6}} + \frac{1}{120} \cdot {y}^{2}\right)\right)\right) \]
                                        3. associate-*l*N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)}\right)\right) \]
                                        4. *-commutativeN/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \left(y \cdot \left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right)\right) \]
                                        5. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \color{blue}{\left(\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right) \cdot y\right)}\right)\right) \]
                                        6. *-commutativeN/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
                                        7. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right) \]
                                        8. +-lowering-+.f64N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)}\right)\right)\right)\right) \]
                                        9. *-commutativeN/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \left({y}^{2} \cdot \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
                                        10. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left({y}^{2}\right), \color{blue}{\frac{1}{120}}\right)\right)\right)\right)\right) \]
                                        11. unpow2N/A

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\left(y \cdot y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
                                        12. *-lowering-*.f6467.3%

                                          \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \mathsf{+.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(\mathsf{*.f64}\left(y, y\right), \frac{1}{120}\right)\right)\right)\right)\right) \]
                                      4. Simplified67.3%

                                        \[\leadsto \color{blue}{1 + y \cdot \left(y \cdot \left(0.16666666666666666 + \left(y \cdot y\right) \cdot 0.008333333333333333\right)\right)} \]
                                      5. Taylor expanded in y around inf

                                        \[\leadsto \color{blue}{\frac{1}{120} \cdot {y}^{4}} \]
                                      6. Step-by-step derivation
                                        1. metadata-evalN/A

                                          \[\leadsto \frac{1}{120} \cdot {y}^{\left(2 \cdot \color{blue}{2}\right)} \]
                                        2. pow-sqrN/A

                                          \[\leadsto \frac{1}{120} \cdot \left({y}^{2} \cdot \color{blue}{{y}^{2}}\right) \]
                                        3. associate-*l*N/A

                                          \[\leadsto \left(\frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{{y}^{2}} \]
                                        4. *-commutativeN/A

                                          \[\leadsto {y}^{2} \cdot \color{blue}{\left(\frac{1}{120} \cdot {y}^{2}\right)} \]
                                        5. unpow2N/A

                                          \[\leadsto \left(y \cdot y\right) \cdot \left(\color{blue}{\frac{1}{120}} \cdot {y}^{2}\right) \]
                                        6. associate-*l*N/A

                                          \[\leadsto y \cdot \color{blue}{\left(y \cdot \left(\frac{1}{120} \cdot {y}^{2}\right)\right)} \]
                                        7. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{\left(y \cdot \left(\frac{1}{120} \cdot {y}^{2}\right)\right)}\right) \]
                                        8. *-commutativeN/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \left(\left(\frac{1}{120} \cdot {y}^{2}\right) \cdot \color{blue}{y}\right)\right) \]
                                        9. associate-*r*N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \left(\frac{1}{120} \cdot \color{blue}{\left({y}^{2} \cdot y\right)}\right)\right) \]
                                        10. unpow2N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \left(\frac{1}{120} \cdot \left(\left(y \cdot y\right) \cdot y\right)\right)\right) \]
                                        11. unpow3N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \left(\frac{1}{120} \cdot {y}^{\color{blue}{3}}\right)\right) \]
                                        12. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \color{blue}{\left({y}^{3}\right)}\right)\right) \]
                                        13. cube-multN/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \left(y \cdot \color{blue}{\left(y \cdot y\right)}\right)\right)\right) \]
                                        14. unpow2N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \left(y \cdot {y}^{\color{blue}{2}}\right)\right)\right) \]
                                        15. *-lowering-*.f64N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(y, \color{blue}{\left({y}^{2}\right)}\right)\right)\right) \]
                                        16. unpow2N/A

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(y, \left(y \cdot \color{blue}{y}\right)\right)\right)\right) \]
                                        17. *-lowering-*.f6467.3%

                                          \[\leadsto \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(\frac{1}{120}, \mathsf{*.f64}\left(y, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right)\right) \]
                                      7. Simplified67.3%

                                        \[\leadsto \color{blue}{y \cdot \left(0.008333333333333333 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)} \]
                                    5. Recombined 2 regimes into one program.
                                    6. Final simplification54.3%

                                      \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 0.0018:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{else}:\\ \;\;\;\;y \cdot \left(0.008333333333333333 \cdot \left(y \cdot \left(y \cdot y\right)\right)\right)\\ \end{array} \]
                                    7. Add Preprocessing

                                    Alternative 16: 47.2% accurate, 17.1× speedup?

                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \end{array} \]
                                    (FPCore (x y)
                                     :precision binary64
                                     (if (<= x 8.2e+252)
                                       (+ 1.0 (* (* y y) 0.16666666666666666))
                                       (+ 1.0 (* x (* x -0.5)))))
                                    double code(double x, double y) {
                                    	double tmp;
                                    	if (x <= 8.2e+252) {
                                    		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                    	} else {
                                    		tmp = 1.0 + (x * (x * -0.5));
                                    	}
                                    	return tmp;
                                    }
                                    
                                    real(8) function code(x, y)
                                        real(8), intent (in) :: x
                                        real(8), intent (in) :: y
                                        real(8) :: tmp
                                        if (x <= 8.2d+252) then
                                            tmp = 1.0d0 + ((y * y) * 0.16666666666666666d0)
                                        else
                                            tmp = 1.0d0 + (x * (x * (-0.5d0)))
                                        end if
                                        code = tmp
                                    end function
                                    
                                    public static double code(double x, double y) {
                                    	double tmp;
                                    	if (x <= 8.2e+252) {
                                    		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                    	} else {
                                    		tmp = 1.0 + (x * (x * -0.5));
                                    	}
                                    	return tmp;
                                    }
                                    
                                    def code(x, y):
                                    	tmp = 0
                                    	if x <= 8.2e+252:
                                    		tmp = 1.0 + ((y * y) * 0.16666666666666666)
                                    	else:
                                    		tmp = 1.0 + (x * (x * -0.5))
                                    	return tmp
                                    
                                    function code(x, y)
                                    	tmp = 0.0
                                    	if (x <= 8.2e+252)
                                    		tmp = Float64(1.0 + Float64(Float64(y * y) * 0.16666666666666666));
                                    	else
                                    		tmp = Float64(1.0 + Float64(x * Float64(x * -0.5)));
                                    	end
                                    	return tmp
                                    end
                                    
                                    function tmp_2 = code(x, y)
                                    	tmp = 0.0;
                                    	if (x <= 8.2e+252)
                                    		tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                    	else
                                    		tmp = 1.0 + (x * (x * -0.5));
                                    	end
                                    	tmp_2 = tmp;
                                    end
                                    
                                    code[x_, y_] := If[LessEqual[x, 8.2e+252], N[(1.0 + N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision], N[(1.0 + N[(x * N[(x * -0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
                                    
                                    \begin{array}{l}
                                    
                                    \\
                                    \begin{array}{l}
                                    \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\
                                    \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\
                                    
                                    \mathbf{else}:\\
                                    \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\
                                    
                                    
                                    \end{array}
                                    \end{array}
                                    
                                    Derivation
                                    1. Split input into 2 regimes
                                    2. if x < 8.2000000000000007e252

                                      1. Initial program 100.0%

                                        \[\cos x \cdot \frac{\sinh y}{y} \]
                                      2. Add Preprocessing
                                      3. Taylor expanded in x around 0

                                        \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                      4. Step-by-step derivation
                                        1. Simplified70.6%

                                          \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                        2. Taylor expanded in y around 0

                                          \[\leadsto \color{blue}{1 + \frac{1}{6} \cdot {y}^{2}} \]
                                        3. Step-by-step derivation
                                          1. +-lowering-+.f64N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right) \]
                                          2. *-lowering-*.f64N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right)\right) \]
                                          3. unpow2N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right)\right) \]
                                          4. *-lowering-*.f6450.0%

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right) \]
                                        4. Simplified50.0%

                                          \[\leadsto \color{blue}{1 + 0.16666666666666666 \cdot \left(y \cdot y\right)} \]

                                        if 8.2000000000000007e252 < x

                                        1. Initial program 100.0%

                                          \[\cos x \cdot \frac{\sinh y}{y} \]
                                        2. Add Preprocessing
                                        3. Taylor expanded in y around 0

                                          \[\leadsto \color{blue}{\cos x} \]
                                        4. Step-by-step derivation
                                          1. cos-lowering-cos.f6458.5%

                                            \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                        5. Simplified58.5%

                                          \[\leadsto \color{blue}{\cos x} \]
                                        6. Taylor expanded in x around 0

                                          \[\leadsto \color{blue}{1 + \frac{-1}{2} \cdot {x}^{2}} \]
                                        7. Step-by-step derivation
                                          1. +-lowering-+.f64N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{-1}{2} \cdot {x}^{2}\right)}\right) \]
                                          2. unpow2N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \left(\frac{-1}{2} \cdot \left(x \cdot \color{blue}{x}\right)\right)\right) \]
                                          3. associate-*r*N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \left(\left(\frac{-1}{2} \cdot x\right) \cdot \color{blue}{x}\right)\right) \]
                                          4. *-commutativeN/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \left(x \cdot \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                          5. *-lowering-*.f64N/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{-1}{2} \cdot x\right)}\right)\right) \]
                                          6. *-commutativeN/A

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \left(x \cdot \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                          7. *-lowering-*.f6429.7%

                                            \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(x, \mathsf{*.f64}\left(x, \color{blue}{\frac{-1}{2}}\right)\right)\right) \]
                                        8. Simplified29.7%

                                          \[\leadsto \color{blue}{1 + x \cdot \left(x \cdot -0.5\right)} \]
                                      5. Recombined 2 regimes into one program.
                                      6. Final simplification48.9%

                                        \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 8.2 \cdot 10^{+252}:\\ \;\;\;\;1 + \left(y \cdot y\right) \cdot 0.16666666666666666\\ \mathbf{else}:\\ \;\;\;\;1 + x \cdot \left(x \cdot -0.5\right)\\ \end{array} \]
                                      7. Add Preprocessing

                                      Alternative 17: 37.9% accurate, 20.5× speedup?

                                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq 0.0018:\\ \;\;\;\;1\\ \mathbf{else}:\\ \;\;\;\;\left(y \cdot y\right) \cdot 0.16666666666666666\\ \end{array} \end{array} \]
                                      (FPCore (x y)
                                       :precision binary64
                                       (if (<= y 0.0018) 1.0 (* (* y y) 0.16666666666666666)))
                                      double code(double x, double y) {
                                      	double tmp;
                                      	if (y <= 0.0018) {
                                      		tmp = 1.0;
                                      	} else {
                                      		tmp = (y * y) * 0.16666666666666666;
                                      	}
                                      	return tmp;
                                      }
                                      
                                      real(8) function code(x, y)
                                          real(8), intent (in) :: x
                                          real(8), intent (in) :: y
                                          real(8) :: tmp
                                          if (y <= 0.0018d0) then
                                              tmp = 1.0d0
                                          else
                                              tmp = (y * y) * 0.16666666666666666d0
                                          end if
                                          code = tmp
                                      end function
                                      
                                      public static double code(double x, double y) {
                                      	double tmp;
                                      	if (y <= 0.0018) {
                                      		tmp = 1.0;
                                      	} else {
                                      		tmp = (y * y) * 0.16666666666666666;
                                      	}
                                      	return tmp;
                                      }
                                      
                                      def code(x, y):
                                      	tmp = 0
                                      	if y <= 0.0018:
                                      		tmp = 1.0
                                      	else:
                                      		tmp = (y * y) * 0.16666666666666666
                                      	return tmp
                                      
                                      function code(x, y)
                                      	tmp = 0.0
                                      	if (y <= 0.0018)
                                      		tmp = 1.0;
                                      	else
                                      		tmp = Float64(Float64(y * y) * 0.16666666666666666);
                                      	end
                                      	return tmp
                                      end
                                      
                                      function tmp_2 = code(x, y)
                                      	tmp = 0.0;
                                      	if (y <= 0.0018)
                                      		tmp = 1.0;
                                      	else
                                      		tmp = (y * y) * 0.16666666666666666;
                                      	end
                                      	tmp_2 = tmp;
                                      end
                                      
                                      code[x_, y_] := If[LessEqual[y, 0.0018], 1.0, N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]]
                                      
                                      \begin{array}{l}
                                      
                                      \\
                                      \begin{array}{l}
                                      \mathbf{if}\;y \leq 0.0018:\\
                                      \;\;\;\;1\\
                                      
                                      \mathbf{else}:\\
                                      \;\;\;\;\left(y \cdot y\right) \cdot 0.16666666666666666\\
                                      
                                      
                                      \end{array}
                                      \end{array}
                                      
                                      Derivation
                                      1. Split input into 2 regimes
                                      2. if y < 0.0018

                                        1. Initial program 100.0%

                                          \[\cos x \cdot \frac{\sinh y}{y} \]
                                        2. Add Preprocessing
                                        3. Taylor expanded in y around 0

                                          \[\leadsto \color{blue}{\cos x} \]
                                        4. Step-by-step derivation
                                          1. cos-lowering-cos.f6465.6%

                                            \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                        5. Simplified65.6%

                                          \[\leadsto \color{blue}{\cos x} \]
                                        6. Taylor expanded in x around 0

                                          \[\leadsto \color{blue}{1} \]
                                        7. Step-by-step derivation
                                          1. Simplified35.4%

                                            \[\leadsto \color{blue}{1} \]

                                          if 0.0018 < y

                                          1. Initial program 100.0%

                                            \[\cos x \cdot \frac{\sinh y}{y} \]
                                          2. Add Preprocessing
                                          3. Taylor expanded in x around 0

                                            \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                          4. Step-by-step derivation
                                            1. Simplified85.1%

                                              \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                            2. Taylor expanded in y around 0

                                              \[\leadsto \color{blue}{1 + \frac{1}{6} \cdot {y}^{2}} \]
                                            3. Step-by-step derivation
                                              1. +-lowering-+.f64N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right) \]
                                              2. *-lowering-*.f64N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right)\right) \]
                                              3. unpow2N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right)\right) \]
                                              4. *-lowering-*.f6446.8%

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right) \]
                                            4. Simplified46.8%

                                              \[\leadsto \color{blue}{1 + 0.16666666666666666 \cdot \left(y \cdot y\right)} \]
                                            5. Taylor expanded in y around inf

                                              \[\leadsto \color{blue}{\frac{1}{6} \cdot {y}^{2}} \]
                                            6. Step-by-step derivation
                                              1. *-lowering-*.f64N/A

                                                \[\leadsto \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right) \]
                                              2. unpow2N/A

                                                \[\leadsto \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right) \]
                                              3. *-lowering-*.f6446.8%

                                                \[\leadsto \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right) \]
                                            7. Simplified46.8%

                                              \[\leadsto \color{blue}{0.16666666666666666 \cdot \left(y \cdot y\right)} \]
                                          5. Recombined 2 regimes into one program.
                                          6. Final simplification38.7%

                                            \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq 0.0018:\\ \;\;\;\;1\\ \mathbf{else}:\\ \;\;\;\;\left(y \cdot y\right) \cdot 0.16666666666666666\\ \end{array} \]
                                          7. Add Preprocessing

                                          Alternative 18: 46.9% accurate, 29.3× speedup?

                                          \[\begin{array}{l} \\ 1 + \left(y \cdot y\right) \cdot 0.16666666666666666 \end{array} \]
                                          (FPCore (x y) :precision binary64 (+ 1.0 (* (* y y) 0.16666666666666666)))
                                          double code(double x, double y) {
                                          	return 1.0 + ((y * y) * 0.16666666666666666);
                                          }
                                          
                                          real(8) function code(x, y)
                                              real(8), intent (in) :: x
                                              real(8), intent (in) :: y
                                              code = 1.0d0 + ((y * y) * 0.16666666666666666d0)
                                          end function
                                          
                                          public static double code(double x, double y) {
                                          	return 1.0 + ((y * y) * 0.16666666666666666);
                                          }
                                          
                                          def code(x, y):
                                          	return 1.0 + ((y * y) * 0.16666666666666666)
                                          
                                          function code(x, y)
                                          	return Float64(1.0 + Float64(Float64(y * y) * 0.16666666666666666))
                                          end
                                          
                                          function tmp = code(x, y)
                                          	tmp = 1.0 + ((y * y) * 0.16666666666666666);
                                          end
                                          
                                          code[x_, y_] := N[(1.0 + N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]
                                          
                                          \begin{array}{l}
                                          
                                          \\
                                          1 + \left(y \cdot y\right) \cdot 0.16666666666666666
                                          \end{array}
                                          
                                          Derivation
                                          1. Initial program 100.0%

                                            \[\cos x \cdot \frac{\sinh y}{y} \]
                                          2. Add Preprocessing
                                          3. Taylor expanded in x around 0

                                            \[\leadsto \mathsf{*.f64}\left(\color{blue}{1}, \mathsf{/.f64}\left(\mathsf{sinh.f64}\left(y\right), y\right)\right) \]
                                          4. Step-by-step derivation
                                            1. Simplified67.9%

                                              \[\leadsto \color{blue}{1} \cdot \frac{\sinh y}{y} \]
                                            2. Taylor expanded in y around 0

                                              \[\leadsto \color{blue}{1 + \frac{1}{6} \cdot {y}^{2}} \]
                                            3. Step-by-step derivation
                                              1. +-lowering-+.f64N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \color{blue}{\left(\frac{1}{6} \cdot {y}^{2}\right)}\right) \]
                                              2. *-lowering-*.f64N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \color{blue}{\left({y}^{2}\right)}\right)\right) \]
                                              3. unpow2N/A

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \left(y \cdot \color{blue}{y}\right)\right)\right) \]
                                              4. *-lowering-*.f6448.4%

                                                \[\leadsto \mathsf{+.f64}\left(1, \mathsf{*.f64}\left(\frac{1}{6}, \mathsf{*.f64}\left(y, \color{blue}{y}\right)\right)\right) \]
                                            4. Simplified48.4%

                                              \[\leadsto \color{blue}{1 + 0.16666666666666666 \cdot \left(y \cdot y\right)} \]
                                            5. Final simplification48.4%

                                              \[\leadsto 1 + \left(y \cdot y\right) \cdot 0.16666666666666666 \]
                                            6. Add Preprocessing

                                            Alternative 19: 28.9% accurate, 205.0× speedup?

                                            \[\begin{array}{l} \\ 1 \end{array} \]
                                            (FPCore (x y) :precision binary64 1.0)
                                            double code(double x, double y) {
                                            	return 1.0;
                                            }
                                            
                                            real(8) function code(x, y)
                                                real(8), intent (in) :: x
                                                real(8), intent (in) :: y
                                                code = 1.0d0
                                            end function
                                            
                                            public static double code(double x, double y) {
                                            	return 1.0;
                                            }
                                            
                                            def code(x, y):
                                            	return 1.0
                                            
                                            function code(x, y)
                                            	return 1.0
                                            end
                                            
                                            function tmp = code(x, y)
                                            	tmp = 1.0;
                                            end
                                            
                                            code[x_, y_] := 1.0
                                            
                                            \begin{array}{l}
                                            
                                            \\
                                            1
                                            \end{array}
                                            
                                            Derivation
                                            1. Initial program 100.0%

                                              \[\cos x \cdot \frac{\sinh y}{y} \]
                                            2. Add Preprocessing
                                            3. Taylor expanded in y around 0

                                              \[\leadsto \color{blue}{\cos x} \]
                                            4. Step-by-step derivation
                                              1. cos-lowering-cos.f6447.5%

                                                \[\leadsto \mathsf{cos.f64}\left(x\right) \]
                                            5. Simplified47.5%

                                              \[\leadsto \color{blue}{\cos x} \]
                                            6. Taylor expanded in x around 0

                                              \[\leadsto \color{blue}{1} \]
                                            7. Step-by-step derivation
                                              1. Simplified25.9%

                                                \[\leadsto \color{blue}{1} \]
                                              2. Add Preprocessing

                                              Reproduce

                                              ?
                                              herbie shell --seed 2024150 
                                              (FPCore (x y)
                                                :name "Linear.Quaternion:$csin from linear-1.19.1.3"
                                                :precision binary64
                                                (* (cos x) (/ (sinh y) y)))