Linear.Quaternion:$ccosh from linear-1.19.1.3

Percentage Accurate: 88.9% → 99.9%
Time: 9.8s
Alternatives: 16
Speedup: 1.0×

Specification

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

\\
\frac{\sin x \cdot \sinh y}{x}
\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 16 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: 88.9% accurate, 1.0× speedup?

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

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

Alternative 1: 99.9% accurate, 0.9× speedup?

\[\begin{array}{l} \\ \left(-\sinh y\right) \cdot \frac{-1}{\frac{x}{\sin x}} \end{array} \]
(FPCore (x y) :precision binary64 (* (- (sinh y)) (/ -1.0 (/ x (sin x)))))
double code(double x, double y) {
	return -sinh(y) * (-1.0 / (x / sin(x)));
}
real(8) function code(x, y)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = -sinh(y) * ((-1.0d0) / (x / sin(x)))
end function
public static double code(double x, double y) {
	return -Math.sinh(y) * (-1.0 / (x / Math.sin(x)));
}
def code(x, y):
	return -math.sinh(y) * (-1.0 / (x / math.sin(x)))
function code(x, y)
	return Float64(Float64(-sinh(y)) * Float64(-1.0 / Float64(x / sin(x))))
end
function tmp = code(x, y)
	tmp = -sinh(y) * (-1.0 / (x / sin(x)));
end
code[x_, y_] := N[((-N[Sinh[y], $MachinePrecision]) * N[(-1.0 / N[(x / N[Sin[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(-\sinh y\right) \cdot \frac{-1}{\frac{x}{\sin x}}
\end{array}
Derivation
  1. Initial program 87.3%

    \[\frac{\sin x \cdot \sinh y}{x} \]
  2. Add Preprocessing
  3. Step-by-step derivation
    1. lift-/.f64N/A

      \[\leadsto \color{blue}{\frac{\sin x \cdot \sinh y}{x}} \]
    2. clear-numN/A

      \[\leadsto \color{blue}{\frac{1}{\frac{x}{\sin x \cdot \sinh y}}} \]
    3. frac-2negN/A

      \[\leadsto \color{blue}{\frac{\mathsf{neg}\left(1\right)}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)}} \]
    4. metadata-evalN/A

      \[\leadsto \frac{\color{blue}{-1}}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)} \]
    5. lift-*.f64N/A

      \[\leadsto \frac{-1}{\mathsf{neg}\left(\frac{x}{\color{blue}{\sin x \cdot \sinh y}}\right)} \]
    6. associate-/r*N/A

      \[\leadsto \frac{-1}{\mathsf{neg}\left(\color{blue}{\frac{\frac{x}{\sin x}}{\sinh y}}\right)} \]
    7. distribute-neg-frac2N/A

      \[\leadsto \frac{-1}{\color{blue}{\frac{\frac{x}{\sin x}}{\mathsf{neg}\left(\sinh y\right)}}} \]
    8. associate-/r/N/A

      \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
    9. lower-*.f64N/A

      \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
    10. lower-/.f64N/A

      \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
    11. lower-/.f64N/A

      \[\leadsto \frac{-1}{\color{blue}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
    12. lower-neg.f6499.9

      \[\leadsto \frac{-1}{\frac{x}{\sin x}} \cdot \color{blue}{\left(-\sinh y\right)} \]
  4. Applied rewrites99.9%

    \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(-\sinh y\right)} \]
  5. Final simplification99.9%

    \[\leadsto \left(-\sinh y\right) \cdot \frac{-1}{\frac{x}{\sin x}} \]
  6. Add Preprocessing

Alternative 2: 87.2% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y \cdot \sin x}{x}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;t\_0 \leq 10^{-55}:\\ \;\;\;\;\left(\mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (* (sinh y) (sin x)) x)))
   (if (<= t_0 (- INFINITY))
     (* (fma (* x x) 0.16666666666666666 -1.0) (- (sinh y)))
     (if (<= t_0 1e-55)
       (*
        (*
         (fma
          (fma 0.008333333333333333 (* y y) 0.16666666666666666)
          (* y y)
          1.0)
         (/ (sin x) x))
        y)
       (sinh y)))))
double code(double x, double y) {
	double t_0 = (sinh(y) * sin(x)) / x;
	double tmp;
	if (t_0 <= -((double) INFINITY)) {
		tmp = fma((x * x), 0.16666666666666666, -1.0) * -sinh(y);
	} else if (t_0 <= 1e-55) {
		tmp = (fma(fma(0.008333333333333333, (y * y), 0.16666666666666666), (y * y), 1.0) * (sin(x) / x)) * y;
	} else {
		tmp = sinh(y);
	}
	return tmp;
}
function code(x, y)
	t_0 = Float64(Float64(sinh(y) * sin(x)) / x)
	tmp = 0.0
	if (t_0 <= Float64(-Inf))
		tmp = Float64(fma(Float64(x * x), 0.16666666666666666, -1.0) * Float64(-sinh(y)));
	elseif (t_0 <= 1e-55)
		tmp = Float64(Float64(fma(fma(0.008333333333333333, Float64(y * y), 0.16666666666666666), Float64(y * y), 1.0) * Float64(sin(x) / x)) * y);
	else
		tmp = sinh(y);
	end
	return tmp
end
code[x_, y_] := Block[{t$95$0 = N[(N[(N[Sinh[y], $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(x * x), $MachinePrecision] * 0.16666666666666666 + -1.0), $MachinePrecision] * (-N[Sinh[y], $MachinePrecision])), $MachinePrecision], If[LessEqual[t$95$0, 1e-55], N[(N[(N[(N[(0.008333333333333333 * N[(y * y), $MachinePrecision] + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision] * N[(N[Sin[x], $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision], N[Sinh[y], $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{\sinh y \cdot \sin x}{x}\\
\mathbf{if}\;t\_0 \leq -\infty:\\
\;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\

\mathbf{elif}\;t\_0 \leq 10^{-55}:\\
\;\;\;\;\left(\mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\

\mathbf{else}:\\
\;\;\;\;\sinh y\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < -inf.0

    1. Initial program 100.0%

      \[\frac{\sin x \cdot \sinh y}{x} \]
    2. Add Preprocessing
    3. Step-by-step derivation
      1. lift-/.f64N/A

        \[\leadsto \color{blue}{\frac{\sin x \cdot \sinh y}{x}} \]
      2. clear-numN/A

        \[\leadsto \color{blue}{\frac{1}{\frac{x}{\sin x \cdot \sinh y}}} \]
      3. frac-2negN/A

        \[\leadsto \color{blue}{\frac{\mathsf{neg}\left(1\right)}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)}} \]
      4. metadata-evalN/A

        \[\leadsto \frac{\color{blue}{-1}}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)} \]
      5. lift-*.f64N/A

        \[\leadsto \frac{-1}{\mathsf{neg}\left(\frac{x}{\color{blue}{\sin x \cdot \sinh y}}\right)} \]
      6. associate-/r*N/A

        \[\leadsto \frac{-1}{\mathsf{neg}\left(\color{blue}{\frac{\frac{x}{\sin x}}{\sinh y}}\right)} \]
      7. distribute-neg-frac2N/A

        \[\leadsto \frac{-1}{\color{blue}{\frac{\frac{x}{\sin x}}{\mathsf{neg}\left(\sinh y\right)}}} \]
      8. associate-/r/N/A

        \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
      9. lower-*.f64N/A

        \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
      10. lower-/.f64N/A

        \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
      11. lower-/.f64N/A

        \[\leadsto \frac{-1}{\color{blue}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
      12. lower-neg.f64100.0

        \[\leadsto \frac{-1}{\frac{x}{\sin x}} \cdot \color{blue}{\left(-\sinh y\right)} \]
    4. Applied rewrites100.0%

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

      \[\leadsto \color{blue}{\left(\frac{1}{6} \cdot {x}^{2} - 1\right)} \cdot \left(-\sinh y\right) \]
    6. Step-by-step derivation
      1. sub-negN/A

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

        \[\leadsto \left(\color{blue}{{x}^{2} \cdot \frac{1}{6}} + \left(\mathsf{neg}\left(1\right)\right)\right) \cdot \left(-\sinh y\right) \]
      3. metadata-evalN/A

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

        \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{2}, \frac{1}{6}, -1\right)} \cdot \left(-\sinh y\right) \]
      5. unpow2N/A

        \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, \frac{1}{6}, -1\right) \cdot \left(-\sinh y\right) \]
      6. lower-*.f6487.0

        \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right) \]
    7. Applied rewrites87.0%

      \[\leadsto \color{blue}{\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right)} \cdot \left(-\sinh y\right) \]

    if -inf.0 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < 9.99999999999999995e-56

    1. Initial program 73.4%

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

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

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

        \[\leadsto \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} \cdot \frac{{y}^{2} \cdot \sin x}{x} + \frac{1}{6} \cdot \frac{\sin x}{x}\right) + \frac{\sin x}{x}\right) \cdot y} \]
    5. Applied rewrites99.5%

      \[\leadsto \color{blue}{\left(\frac{\sin x}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y} \]

    if 9.99999999999999995e-56 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x)

    1. Initial program 100.0%

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

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

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

        \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
      3. lower--.f64N/A

        \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
      4. lower-exp.f64N/A

        \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
      5. rec-expN/A

        \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
      6. lower-exp.f64N/A

        \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
      7. lower-neg.f6476.0

        \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
    5. Applied rewrites76.0%

      \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
    6. Step-by-step derivation
      1. Applied rewrites80.0%

        \[\leadsto \sinh y \]
    7. Recombined 3 regimes into one program.
    8. Final simplification91.2%

      \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\sinh y \cdot \sin x}{x} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;\frac{\sinh y \cdot \sin x}{x} \leq 10^{-55}:\\ \;\;\;\;\left(\mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \]
    9. Add Preprocessing

    Alternative 3: 87.1% accurate, 0.4× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y \cdot \sin x}{x}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;t\_0 \leq 10^{-55}:\\ \;\;\;\;\left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (let* ((t_0 (/ (* (sinh y) (sin x)) x)))
       (if (<= t_0 (- INFINITY))
         (* (fma (* x x) 0.16666666666666666 -1.0) (- (sinh y)))
         (if (<= t_0 1e-55)
           (* (* (fma (* y y) 0.16666666666666666 1.0) (/ (sin x) x)) y)
           (sinh y)))))
    double code(double x, double y) {
    	double t_0 = (sinh(y) * sin(x)) / x;
    	double tmp;
    	if (t_0 <= -((double) INFINITY)) {
    		tmp = fma((x * x), 0.16666666666666666, -1.0) * -sinh(y);
    	} else if (t_0 <= 1e-55) {
    		tmp = (fma((y * y), 0.16666666666666666, 1.0) * (sin(x) / x)) * y;
    	} else {
    		tmp = sinh(y);
    	}
    	return tmp;
    }
    
    function code(x, y)
    	t_0 = Float64(Float64(sinh(y) * sin(x)) / x)
    	tmp = 0.0
    	if (t_0 <= Float64(-Inf))
    		tmp = Float64(fma(Float64(x * x), 0.16666666666666666, -1.0) * Float64(-sinh(y)));
    	elseif (t_0 <= 1e-55)
    		tmp = Float64(Float64(fma(Float64(y * y), 0.16666666666666666, 1.0) * Float64(sin(x) / x)) * y);
    	else
    		tmp = sinh(y);
    	end
    	return tmp
    end
    
    code[x_, y_] := Block[{t$95$0 = N[(N[(N[Sinh[y], $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(x * x), $MachinePrecision] * 0.16666666666666666 + -1.0), $MachinePrecision] * (-N[Sinh[y], $MachinePrecision])), $MachinePrecision], If[LessEqual[t$95$0, 1e-55], N[(N[(N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision] * N[(N[Sin[x], $MachinePrecision] / x), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision], N[Sinh[y], $MachinePrecision]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_0 := \frac{\sinh y \cdot \sin x}{x}\\
    \mathbf{if}\;t\_0 \leq -\infty:\\
    \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\
    
    \mathbf{elif}\;t\_0 \leq 10^{-55}:\\
    \;\;\;\;\left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\
    
    \mathbf{else}:\\
    \;\;\;\;\sinh y\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < -inf.0

      1. Initial program 100.0%

        \[\frac{\sin x \cdot \sinh y}{x} \]
      2. Add Preprocessing
      3. Step-by-step derivation
        1. lift-/.f64N/A

          \[\leadsto \color{blue}{\frac{\sin x \cdot \sinh y}{x}} \]
        2. clear-numN/A

          \[\leadsto \color{blue}{\frac{1}{\frac{x}{\sin x \cdot \sinh y}}} \]
        3. frac-2negN/A

          \[\leadsto \color{blue}{\frac{\mathsf{neg}\left(1\right)}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)}} \]
        4. metadata-evalN/A

          \[\leadsto \frac{\color{blue}{-1}}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)} \]
        5. lift-*.f64N/A

          \[\leadsto \frac{-1}{\mathsf{neg}\left(\frac{x}{\color{blue}{\sin x \cdot \sinh y}}\right)} \]
        6. associate-/r*N/A

          \[\leadsto \frac{-1}{\mathsf{neg}\left(\color{blue}{\frac{\frac{x}{\sin x}}{\sinh y}}\right)} \]
        7. distribute-neg-frac2N/A

          \[\leadsto \frac{-1}{\color{blue}{\frac{\frac{x}{\sin x}}{\mathsf{neg}\left(\sinh y\right)}}} \]
        8. associate-/r/N/A

          \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
        9. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
        10. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
        11. lower-/.f64N/A

          \[\leadsto \frac{-1}{\color{blue}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
        12. lower-neg.f64100.0

          \[\leadsto \frac{-1}{\frac{x}{\sin x}} \cdot \color{blue}{\left(-\sinh y\right)} \]
      4. Applied rewrites100.0%

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

        \[\leadsto \color{blue}{\left(\frac{1}{6} \cdot {x}^{2} - 1\right)} \cdot \left(-\sinh y\right) \]
      6. Step-by-step derivation
        1. sub-negN/A

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

          \[\leadsto \left(\color{blue}{{x}^{2} \cdot \frac{1}{6}} + \left(\mathsf{neg}\left(1\right)\right)\right) \cdot \left(-\sinh y\right) \]
        3. metadata-evalN/A

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

          \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{2}, \frac{1}{6}, -1\right)} \cdot \left(-\sinh y\right) \]
        5. unpow2N/A

          \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, \frac{1}{6}, -1\right) \cdot \left(-\sinh y\right) \]
        6. lower-*.f6487.0

          \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right) \]
      7. Applied rewrites87.0%

        \[\leadsto \color{blue}{\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right)} \cdot \left(-\sinh y\right) \]

      if -inf.0 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < 9.99999999999999995e-56

      1. Initial program 73.4%

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

        \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
      4. Step-by-step derivation
        1. *-commutativeN/A

          \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
        2. associate-*l/N/A

          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
        3. lower-*.f64N/A

          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
        4. lower-/.f64N/A

          \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
        5. lower-sin.f6498.6

          \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
      5. Applied rewrites98.6%

        \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
      6. Taylor expanded in y around 0

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

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

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

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

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

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

          \[\leadsto \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{6} \cdot \frac{\sin x}{x}\right) + \frac{\sin x}{x}\right) \cdot y} \]
      8. Applied rewrites99.2%

        \[\leadsto \color{blue}{\left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y} \]

      if 9.99999999999999995e-56 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x)

      1. Initial program 100.0%

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

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

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

          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
        3. lower--.f64N/A

          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
        4. lower-exp.f64N/A

          \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
        5. rec-expN/A

          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
        6. lower-exp.f64N/A

          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
        7. lower-neg.f6476.0

          \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
      5. Applied rewrites76.0%

        \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
      6. Step-by-step derivation
        1. Applied rewrites80.0%

          \[\leadsto \sinh y \]
      7. Recombined 3 regimes into one program.
      8. Final simplification91.0%

        \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\sinh y \cdot \sin x}{x} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;\frac{\sinh y \cdot \sin x}{x} \leq 10^{-55}:\\ \;\;\;\;\left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot \frac{\sin x}{x}\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \]
      9. Add Preprocessing

      Alternative 4: 86.9% accurate, 0.4× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y \cdot \sin x}{x}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;t\_0 \leq 10^{-55}:\\ \;\;\;\;\frac{\sin x}{x} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \end{array} \]
      (FPCore (x y)
       :precision binary64
       (let* ((t_0 (/ (* (sinh y) (sin x)) x)))
         (if (<= t_0 (- INFINITY))
           (* (fma (* x x) 0.16666666666666666 -1.0) (- (sinh y)))
           (if (<= t_0 1e-55) (* (/ (sin x) x) y) (sinh y)))))
      double code(double x, double y) {
      	double t_0 = (sinh(y) * sin(x)) / x;
      	double tmp;
      	if (t_0 <= -((double) INFINITY)) {
      		tmp = fma((x * x), 0.16666666666666666, -1.0) * -sinh(y);
      	} else if (t_0 <= 1e-55) {
      		tmp = (sin(x) / x) * y;
      	} else {
      		tmp = sinh(y);
      	}
      	return tmp;
      }
      
      function code(x, y)
      	t_0 = Float64(Float64(sinh(y) * sin(x)) / x)
      	tmp = 0.0
      	if (t_0 <= Float64(-Inf))
      		tmp = Float64(fma(Float64(x * x), 0.16666666666666666, -1.0) * Float64(-sinh(y)));
      	elseif (t_0 <= 1e-55)
      		tmp = Float64(Float64(sin(x) / x) * y);
      	else
      		tmp = sinh(y);
      	end
      	return tmp
      end
      
      code[x_, y_] := Block[{t$95$0 = N[(N[(N[Sinh[y], $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(x * x), $MachinePrecision] * 0.16666666666666666 + -1.0), $MachinePrecision] * (-N[Sinh[y], $MachinePrecision])), $MachinePrecision], If[LessEqual[t$95$0, 1e-55], N[(N[(N[Sin[x], $MachinePrecision] / x), $MachinePrecision] * y), $MachinePrecision], N[Sinh[y], $MachinePrecision]]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_0 := \frac{\sinh y \cdot \sin x}{x}\\
      \mathbf{if}\;t\_0 \leq -\infty:\\
      \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\
      
      \mathbf{elif}\;t\_0 \leq 10^{-55}:\\
      \;\;\;\;\frac{\sin x}{x} \cdot y\\
      
      \mathbf{else}:\\
      \;\;\;\;\sinh y\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 3 regimes
      2. if (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < -inf.0

        1. Initial program 100.0%

          \[\frac{\sin x \cdot \sinh y}{x} \]
        2. Add Preprocessing
        3. Step-by-step derivation
          1. lift-/.f64N/A

            \[\leadsto \color{blue}{\frac{\sin x \cdot \sinh y}{x}} \]
          2. clear-numN/A

            \[\leadsto \color{blue}{\frac{1}{\frac{x}{\sin x \cdot \sinh y}}} \]
          3. frac-2negN/A

            \[\leadsto \color{blue}{\frac{\mathsf{neg}\left(1\right)}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)}} \]
          4. metadata-evalN/A

            \[\leadsto \frac{\color{blue}{-1}}{\mathsf{neg}\left(\frac{x}{\sin x \cdot \sinh y}\right)} \]
          5. lift-*.f64N/A

            \[\leadsto \frac{-1}{\mathsf{neg}\left(\frac{x}{\color{blue}{\sin x \cdot \sinh y}}\right)} \]
          6. associate-/r*N/A

            \[\leadsto \frac{-1}{\mathsf{neg}\left(\color{blue}{\frac{\frac{x}{\sin x}}{\sinh y}}\right)} \]
          7. distribute-neg-frac2N/A

            \[\leadsto \frac{-1}{\color{blue}{\frac{\frac{x}{\sin x}}{\mathsf{neg}\left(\sinh y\right)}}} \]
          8. associate-/r/N/A

            \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
          9. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right)} \]
          10. lower-/.f64N/A

            \[\leadsto \color{blue}{\frac{-1}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
          11. lower-/.f64N/A

            \[\leadsto \frac{-1}{\color{blue}{\frac{x}{\sin x}}} \cdot \left(\mathsf{neg}\left(\sinh y\right)\right) \]
          12. lower-neg.f64100.0

            \[\leadsto \frac{-1}{\frac{x}{\sin x}} \cdot \color{blue}{\left(-\sinh y\right)} \]
        4. Applied rewrites100.0%

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

          \[\leadsto \color{blue}{\left(\frac{1}{6} \cdot {x}^{2} - 1\right)} \cdot \left(-\sinh y\right) \]
        6. Step-by-step derivation
          1. sub-negN/A

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

            \[\leadsto \left(\color{blue}{{x}^{2} \cdot \frac{1}{6}} + \left(\mathsf{neg}\left(1\right)\right)\right) \cdot \left(-\sinh y\right) \]
          3. metadata-evalN/A

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

            \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{2}, \frac{1}{6}, -1\right)} \cdot \left(-\sinh y\right) \]
          5. unpow2N/A

            \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, \frac{1}{6}, -1\right) \cdot \left(-\sinh y\right) \]
          6. lower-*.f6487.0

            \[\leadsto \mathsf{fma}\left(\color{blue}{x \cdot x}, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right) \]
        7. Applied rewrites87.0%

          \[\leadsto \color{blue}{\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right)} \cdot \left(-\sinh y\right) \]

        if -inf.0 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < 9.99999999999999995e-56

        1. Initial program 73.4%

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

          \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
        4. Step-by-step derivation
          1. *-commutativeN/A

            \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
          2. associate-*l/N/A

            \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
          3. lower-*.f64N/A

            \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
          4. lower-/.f64N/A

            \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
          5. lower-sin.f6498.6

            \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
        5. Applied rewrites98.6%

          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]

        if 9.99999999999999995e-56 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x)

        1. Initial program 100.0%

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

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

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

            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
          3. lower--.f64N/A

            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
          4. lower-exp.f64N/A

            \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
          5. rec-expN/A

            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
          6. lower-exp.f64N/A

            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
          7. lower-neg.f6476.0

            \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
        5. Applied rewrites76.0%

          \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
        6. Step-by-step derivation
          1. Applied rewrites80.0%

            \[\leadsto \sinh y \]
        7. Recombined 3 regimes into one program.
        8. Final simplification90.8%

          \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\sinh y \cdot \sin x}{x} \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(x \cdot x, 0.16666666666666666, -1\right) \cdot \left(-\sinh y\right)\\ \mathbf{elif}\;\frac{\sinh y \cdot \sin x}{x} \leq 10^{-55}:\\ \;\;\;\;\frac{\sin x}{x} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \]
        9. Add Preprocessing

        Alternative 5: 84.5% accurate, 0.4× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y \cdot \sin x}{x}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\ \mathbf{elif}\;t\_0 \leq 10^{-55}:\\ \;\;\;\;\frac{\sin x}{x} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \end{array} \]
        (FPCore (x y)
         :precision binary64
         (let* ((t_0 (/ (* (sinh y) (sin x)) x)))
           (if (<= t_0 (- INFINITY))
             (*
              (*
               (fma (* (* y y) 0.008333333333333333) (* y y) 1.0)
               (fma
                (fma
                 (fma (* x x) -0.0001984126984126984 0.008333333333333333)
                 (* x x)
                 -0.16666666666666666)
                (* x x)
                1.0))
              y)
             (if (<= t_0 1e-55) (* (/ (sin x) x) y) (sinh y)))))
        double code(double x, double y) {
        	double t_0 = (sinh(y) * sin(x)) / x;
        	double tmp;
        	if (t_0 <= -((double) INFINITY)) {
        		tmp = (fma(((y * y) * 0.008333333333333333), (y * y), 1.0) * fma(fma(fma((x * x), -0.0001984126984126984, 0.008333333333333333), (x * x), -0.16666666666666666), (x * x), 1.0)) * y;
        	} else if (t_0 <= 1e-55) {
        		tmp = (sin(x) / x) * y;
        	} else {
        		tmp = sinh(y);
        	}
        	return tmp;
        }
        
        function code(x, y)
        	t_0 = Float64(Float64(sinh(y) * sin(x)) / x)
        	tmp = 0.0
        	if (t_0 <= Float64(-Inf))
        		tmp = Float64(Float64(fma(Float64(Float64(y * y) * 0.008333333333333333), Float64(y * y), 1.0) * fma(fma(fma(Float64(x * x), -0.0001984126984126984, 0.008333333333333333), Float64(x * x), -0.16666666666666666), Float64(x * x), 1.0)) * y);
        	elseif (t_0 <= 1e-55)
        		tmp = Float64(Float64(sin(x) / x) * y);
        	else
        		tmp = sinh(y);
        	end
        	return tmp
        end
        
        code[x_, y_] := Block[{t$95$0 = N[(N[(N[Sinh[y], $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision] * N[(N[(N[(N[(x * x), $MachinePrecision] * -0.0001984126984126984 + 0.008333333333333333), $MachinePrecision] * N[(x * x), $MachinePrecision] + -0.16666666666666666), $MachinePrecision] * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision], If[LessEqual[t$95$0, 1e-55], N[(N[(N[Sin[x], $MachinePrecision] / x), $MachinePrecision] * y), $MachinePrecision], N[Sinh[y], $MachinePrecision]]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_0 := \frac{\sinh y \cdot \sin x}{x}\\
        \mathbf{if}\;t\_0 \leq -\infty:\\
        \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\
        
        \mathbf{elif}\;t\_0 \leq 10^{-55}:\\
        \;\;\;\;\frac{\sin x}{x} \cdot y\\
        
        \mathbf{else}:\\
        \;\;\;\;\sinh y\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 3 regimes
        2. if (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < -inf.0

          1. Initial program 100.0%

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

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

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

              \[\leadsto \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} \cdot \frac{{y}^{2} \cdot \sin x}{x} + \frac{1}{6} \cdot \frac{\sin x}{x}\right) + \frac{\sin x}{x}\right) \cdot y} \]
          5. Applied rewrites83.4%

            \[\leadsto \color{blue}{\left(\frac{\sin x}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y} \]
          6. Taylor expanded in x around 0

            \[\leadsto \left(\left(1 + {x}^{2} \cdot \left({x}^{2} \cdot \left(\frac{1}{120} + \frac{-1}{5040} \cdot {x}^{2}\right) - \frac{1}{6}\right)\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\frac{1}{120}, y \cdot y, \frac{1}{6}\right), y \cdot y, 1\right)\right) \cdot y \]
          7. Step-by-step derivation
            1. Applied rewrites74.6%

              \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y \]
            2. Taylor expanded in y around inf

              \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, \frac{-1}{5040}, \frac{1}{120}\right), x \cdot x, \frac{-1}{6}\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(\frac{1}{120} \cdot {y}^{2}, y \cdot y, 1\right)\right) \cdot y \]
            3. Step-by-step derivation
              1. Applied rewrites74.6%

                \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(0.008333333333333333 \cdot \left(y \cdot y\right), y \cdot y, 1\right)\right) \cdot y \]

              if -inf.0 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < 9.99999999999999995e-56

              1. Initial program 73.4%

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

                \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
              4. Step-by-step derivation
                1. *-commutativeN/A

                  \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                2. associate-*l/N/A

                  \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                3. lower-*.f64N/A

                  \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                4. lower-/.f64N/A

                  \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                5. lower-sin.f6498.6

                  \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
              5. Applied rewrites98.6%

                \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]

              if 9.99999999999999995e-56 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x)

              1. Initial program 100.0%

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

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

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

                  \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                3. lower--.f64N/A

                  \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                4. lower-exp.f64N/A

                  \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                5. rec-expN/A

                  \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                6. lower-exp.f64N/A

                  \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                7. lower-neg.f6476.0

                  \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
              5. Applied rewrites76.0%

                \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
              6. Step-by-step derivation
                1. Applied rewrites80.0%

                  \[\leadsto \sinh y \]
              7. Recombined 3 regimes into one program.
              8. Final simplification87.4%

                \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\sinh y \cdot \sin x}{x} \leq -\infty:\\ \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\ \mathbf{elif}\;\frac{\sinh y \cdot \sin x}{x} \leq 10^{-55}:\\ \;\;\;\;\frac{\sin x}{x} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \]
              9. Add Preprocessing

              Alternative 6: 84.5% accurate, 0.4× speedup?

              \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y \cdot \sin x}{x}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\ \mathbf{elif}\;t\_0 \leq 10^{-55}:\\ \;\;\;\;\frac{y}{x} \cdot \sin x\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \end{array} \]
              (FPCore (x y)
               :precision binary64
               (let* ((t_0 (/ (* (sinh y) (sin x)) x)))
                 (if (<= t_0 (- INFINITY))
                   (*
                    (*
                     (fma (* (* y y) 0.008333333333333333) (* y y) 1.0)
                     (fma
                      (fma
                       (fma (* x x) -0.0001984126984126984 0.008333333333333333)
                       (* x x)
                       -0.16666666666666666)
                      (* x x)
                      1.0))
                    y)
                   (if (<= t_0 1e-55) (* (/ y x) (sin x)) (sinh y)))))
              double code(double x, double y) {
              	double t_0 = (sinh(y) * sin(x)) / x;
              	double tmp;
              	if (t_0 <= -((double) INFINITY)) {
              		tmp = (fma(((y * y) * 0.008333333333333333), (y * y), 1.0) * fma(fma(fma((x * x), -0.0001984126984126984, 0.008333333333333333), (x * x), -0.16666666666666666), (x * x), 1.0)) * y;
              	} else if (t_0 <= 1e-55) {
              		tmp = (y / x) * sin(x);
              	} else {
              		tmp = sinh(y);
              	}
              	return tmp;
              }
              
              function code(x, y)
              	t_0 = Float64(Float64(sinh(y) * sin(x)) / x)
              	tmp = 0.0
              	if (t_0 <= Float64(-Inf))
              		tmp = Float64(Float64(fma(Float64(Float64(y * y) * 0.008333333333333333), Float64(y * y), 1.0) * fma(fma(fma(Float64(x * x), -0.0001984126984126984, 0.008333333333333333), Float64(x * x), -0.16666666666666666), Float64(x * x), 1.0)) * y);
              	elseif (t_0 <= 1e-55)
              		tmp = Float64(Float64(y / x) * sin(x));
              	else
              		tmp = sinh(y);
              	end
              	return tmp
              end
              
              code[x_, y_] := Block[{t$95$0 = N[(N[(N[Sinh[y], $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision] / x), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(N[(N[(y * y), $MachinePrecision] * 0.008333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision] * N[(N[(N[(N[(x * x), $MachinePrecision] * -0.0001984126984126984 + 0.008333333333333333), $MachinePrecision] * N[(x * x), $MachinePrecision] + -0.16666666666666666), $MachinePrecision] * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision], If[LessEqual[t$95$0, 1e-55], N[(N[(y / x), $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision], N[Sinh[y], $MachinePrecision]]]]
              
              \begin{array}{l}
              
              \\
              \begin{array}{l}
              t_0 := \frac{\sinh y \cdot \sin x}{x}\\
              \mathbf{if}\;t\_0 \leq -\infty:\\
              \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\
              
              \mathbf{elif}\;t\_0 \leq 10^{-55}:\\
              \;\;\;\;\frac{y}{x} \cdot \sin x\\
              
              \mathbf{else}:\\
              \;\;\;\;\sinh y\\
              
              
              \end{array}
              \end{array}
              
              Derivation
              1. Split input into 3 regimes
              2. if (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < -inf.0

                1. Initial program 100.0%

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

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

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

                    \[\leadsto \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} \cdot \frac{{y}^{2} \cdot \sin x}{x} + \frac{1}{6} \cdot \frac{\sin x}{x}\right) + \frac{\sin x}{x}\right) \cdot y} \]
                5. Applied rewrites83.4%

                  \[\leadsto \color{blue}{\left(\frac{\sin x}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y} \]
                6. Taylor expanded in x around 0

                  \[\leadsto \left(\left(1 + {x}^{2} \cdot \left({x}^{2} \cdot \left(\frac{1}{120} + \frac{-1}{5040} \cdot {x}^{2}\right) - \frac{1}{6}\right)\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\frac{1}{120}, y \cdot y, \frac{1}{6}\right), y \cdot y, 1\right)\right) \cdot y \]
                7. Step-by-step derivation
                  1. Applied rewrites74.6%

                    \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y \]
                  2. Taylor expanded in y around inf

                    \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, \frac{-1}{5040}, \frac{1}{120}\right), x \cdot x, \frac{-1}{6}\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(\frac{1}{120} \cdot {y}^{2}, y \cdot y, 1\right)\right) \cdot y \]
                  3. Step-by-step derivation
                    1. Applied rewrites74.6%

                      \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right) \cdot \mathsf{fma}\left(0.008333333333333333 \cdot \left(y \cdot y\right), y \cdot y, 1\right)\right) \cdot y \]

                    if -inf.0 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x) < 9.99999999999999995e-56

                    1. Initial program 73.4%

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

                      \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
                    4. Step-by-step derivation
                      1. *-commutativeN/A

                        \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                      2. associate-*l/N/A

                        \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                      3. lower-*.f64N/A

                        \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                      4. lower-/.f64N/A

                        \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                      5. lower-sin.f6498.6

                        \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
                    5. Applied rewrites98.6%

                      \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                    6. Step-by-step derivation
                      1. Applied rewrites98.4%

                        \[\leadsto \frac{y}{x} \cdot \color{blue}{\sin x} \]

                      if 9.99999999999999995e-56 < (/.f64 (*.f64 (sin.f64 x) (sinh.f64 y)) x)

                      1. Initial program 100.0%

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

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

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

                          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                        3. lower--.f64N/A

                          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                        4. lower-exp.f64N/A

                          \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                        5. rec-expN/A

                          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                        6. lower-exp.f64N/A

                          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                        7. lower-neg.f6476.0

                          \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                      5. Applied rewrites76.0%

                        \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                      6. Step-by-step derivation
                        1. Applied rewrites80.0%

                          \[\leadsto \sinh y \]
                      7. Recombined 3 regimes into one program.
                      8. Final simplification87.3%

                        \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{\sinh y \cdot \sin x}{x} \leq -\infty:\\ \;\;\;\;\left(\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.008333333333333333, y \cdot y, 1\right) \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(x \cdot x, -0.0001984126984126984, 0.008333333333333333\right), x \cdot x, -0.16666666666666666\right), x \cdot x, 1\right)\right) \cdot y\\ \mathbf{elif}\;\frac{\sinh y \cdot \sin x}{x} \leq 10^{-55}:\\ \;\;\;\;\frac{y}{x} \cdot \sin x\\ \mathbf{else}:\\ \;\;\;\;\sinh y\\ \end{array} \]
                      9. Add Preprocessing

                      Alternative 7: 99.8% accurate, 1.0× speedup?

                      \[\begin{array}{l} \\ \frac{\sinh y}{x} \cdot \sin x \end{array} \]
                      (FPCore (x y) :precision binary64 (* (/ (sinh y) x) (sin x)))
                      double code(double x, double y) {
                      	return (sinh(y) / x) * sin(x);
                      }
                      
                      real(8) function code(x, y)
                          real(8), intent (in) :: x
                          real(8), intent (in) :: y
                          code = (sinh(y) / x) * sin(x)
                      end function
                      
                      public static double code(double x, double y) {
                      	return (Math.sinh(y) / x) * Math.sin(x);
                      }
                      
                      def code(x, y):
                      	return (math.sinh(y) / x) * math.sin(x)
                      
                      function code(x, y)
                      	return Float64(Float64(sinh(y) / x) * sin(x))
                      end
                      
                      function tmp = code(x, y)
                      	tmp = (sinh(y) / x) * sin(x);
                      end
                      
                      code[x_, y_] := N[(N[(N[Sinh[y], $MachinePrecision] / x), $MachinePrecision] * N[Sin[x], $MachinePrecision]), $MachinePrecision]
                      
                      \begin{array}{l}
                      
                      \\
                      \frac{\sinh y}{x} \cdot \sin x
                      \end{array}
                      
                      Derivation
                      1. Initial program 87.3%

                        \[\frac{\sin x \cdot \sinh y}{x} \]
                      2. Add Preprocessing
                      3. Step-by-step derivation
                        1. lift-/.f64N/A

                          \[\leadsto \color{blue}{\frac{\sin x \cdot \sinh y}{x}} \]
                        2. lift-*.f64N/A

                          \[\leadsto \frac{\color{blue}{\sin x \cdot \sinh y}}{x} \]
                        3. associate-/l*N/A

                          \[\leadsto \color{blue}{\sin x \cdot \frac{\sinh y}{x}} \]
                        4. *-commutativeN/A

                          \[\leadsto \color{blue}{\frac{\sinh y}{x} \cdot \sin x} \]
                        5. lower-*.f64N/A

                          \[\leadsto \color{blue}{\frac{\sinh y}{x} \cdot \sin x} \]
                        6. lower-/.f6499.8

                          \[\leadsto \color{blue}{\frac{\sinh y}{x}} \cdot \sin x \]
                      4. Applied rewrites99.8%

                        \[\leadsto \color{blue}{\frac{\sinh y}{x} \cdot \sin x} \]
                      5. Add Preprocessing

                      Alternative 8: 66.8% accurate, 1.8× speedup?

                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 4.8 \cdot 10^{+36}:\\ \;\;\;\;\sinh y\\ \mathbf{elif}\;x \leq 2 \cdot 10^{+209}:\\ \;\;\;\;0.5 \cdot \left(e^{y} - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                      (FPCore (x y)
                       :precision binary64
                       (if (<= x 4.8e+36)
                         (sinh y)
                         (if (<= x 2e+209)
                           (* 0.5 (- (exp y) 1.0))
                           (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5))))
                      double code(double x, double y) {
                      	double tmp;
                      	if (x <= 4.8e+36) {
                      		tmp = sinh(y);
                      	} else if (x <= 2e+209) {
                      		tmp = 0.5 * (exp(y) - 1.0);
                      	} else {
                      		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                      	}
                      	return tmp;
                      }
                      
                      function code(x, y)
                      	tmp = 0.0
                      	if (x <= 4.8e+36)
                      		tmp = sinh(y);
                      	elseif (x <= 2e+209)
                      		tmp = Float64(0.5 * Float64(exp(y) - 1.0));
                      	else
                      		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                      	end
                      	return tmp
                      end
                      
                      code[x_, y_] := If[LessEqual[x, 4.8e+36], N[Sinh[y], $MachinePrecision], If[LessEqual[x, 2e+209], N[(0.5 * N[(N[Exp[y], $MachinePrecision] - 1.0), $MachinePrecision]), $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]]
                      
                      \begin{array}{l}
                      
                      \\
                      \begin{array}{l}
                      \mathbf{if}\;x \leq 4.8 \cdot 10^{+36}:\\
                      \;\;\;\;\sinh y\\
                      
                      \mathbf{elif}\;x \leq 2 \cdot 10^{+209}:\\
                      \;\;\;\;0.5 \cdot \left(e^{y} - 1\right)\\
                      
                      \mathbf{else}:\\
                      \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                      
                      
                      \end{array}
                      \end{array}
                      
                      Derivation
                      1. Split input into 3 regimes
                      2. if x < 4.79999999999999985e36

                        1. Initial program 84.4%

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

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

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

                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                          3. lower--.f64N/A

                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                          4. lower-exp.f64N/A

                            \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                          5. rec-expN/A

                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                          6. lower-exp.f64N/A

                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                          7. lower-neg.f6456.2

                            \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                        5. Applied rewrites56.2%

                          \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                        6. Step-by-step derivation
                          1. Applied rewrites76.9%

                            \[\leadsto \sinh y \]

                          if 4.79999999999999985e36 < x < 2.0000000000000001e209

                          1. Initial program 99.9%

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

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

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

                              \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                            3. lower--.f64N/A

                              \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                            4. lower-exp.f64N/A

                              \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                            5. rec-expN/A

                              \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                            6. lower-exp.f64N/A

                              \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                            7. lower-neg.f6458.8

                              \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                          5. Applied rewrites58.8%

                            \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                          6. Taylor expanded in y around 0

                            \[\leadsto \left(e^{y} - 1\right) \cdot \frac{1}{2} \]
                          7. Step-by-step derivation
                            1. Applied rewrites48.1%

                              \[\leadsto \left(e^{y} - 1\right) \cdot 0.5 \]

                            if 2.0000000000000001e209 < x

                            1. Initial program 99.9%

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

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

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

                                \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                              3. lower--.f64N/A

                                \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                              4. lower-exp.f64N/A

                                \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                              5. rec-expN/A

                                \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                              6. lower-exp.f64N/A

                                \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                              7. lower-neg.f6450.4

                                \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                            5. Applied rewrites50.4%

                              \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                            6. Taylor expanded in y around 0

                              \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                            7. Step-by-step derivation
                              1. Applied rewrites50.6%

                                \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                              2. Taylor expanded in y around 0

                                \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                              3. Step-by-step derivation
                                1. Applied rewrites68.9%

                                  \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                              4. Recombined 3 regimes into one program.
                              5. Final simplification73.1%

                                \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq 4.8 \cdot 10^{+36}:\\ \;\;\;\;\sinh y\\ \mathbf{elif}\;x \leq 2 \cdot 10^{+209}:\\ \;\;\;\;0.5 \cdot \left(e^{y} - 1\right)\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \]
                              6. Add Preprocessing

                              Alternative 9: 66.9% accurate, 2.0× speedup?

                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\ \;\;\;\;\sinh y\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                              (FPCore (x y)
                               :precision binary64
                               (if (<= x 1.25e+39) (sinh y) (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5)))
                              double code(double x, double y) {
                              	double tmp;
                              	if (x <= 1.25e+39) {
                              		tmp = sinh(y);
                              	} else {
                              		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                              	}
                              	return tmp;
                              }
                              
                              function code(x, y)
                              	tmp = 0.0
                              	if (x <= 1.25e+39)
                              		tmp = sinh(y);
                              	else
                              		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                              	end
                              	return tmp
                              end
                              
                              code[x_, y_] := If[LessEqual[x, 1.25e+39], N[Sinh[y], $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                              
                              \begin{array}{l}
                              
                              \\
                              \begin{array}{l}
                              \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\
                              \;\;\;\;\sinh y\\
                              
                              \mathbf{else}:\\
                              \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                              
                              
                              \end{array}
                              \end{array}
                              
                              Derivation
                              1. Split input into 2 regimes
                              2. if x < 1.25000000000000004e39

                                1. Initial program 84.4%

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

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

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

                                    \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                  3. lower--.f64N/A

                                    \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                  4. lower-exp.f64N/A

                                    \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                  5. rec-expN/A

                                    \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                  6. lower-exp.f64N/A

                                    \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                  7. lower-neg.f6456.5

                                    \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                5. Applied rewrites56.5%

                                  \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                6. Step-by-step derivation
                                  1. Applied rewrites77.0%

                                    \[\leadsto \sinh y \]

                                  if 1.25000000000000004e39 < x

                                  1. Initial program 99.9%

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

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

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

                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                    3. lower--.f64N/A

                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                    4. lower-exp.f64N/A

                                      \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                    5. rec-expN/A

                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                    6. lower-exp.f64N/A

                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                    7. lower-neg.f6454.1

                                      \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                  5. Applied rewrites54.1%

                                    \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                  6. Taylor expanded in y around 0

                                    \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                  7. Step-by-step derivation
                                    1. Applied rewrites50.2%

                                      \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                    2. Taylor expanded in y around 0

                                      \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                                    3. Step-by-step derivation
                                      1. Applied rewrites56.9%

                                        \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                                    4. Recombined 2 regimes into one program.
                                    5. Add Preprocessing

                                    Alternative 10: 62.8% accurate, 4.3× speedup?

                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\ \;\;\;\;\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0003968253968253968, y \cdot y, 0.016666666666666666\right), y \cdot y, 0.3333333333333333\right), y \cdot y, 2\right) \cdot y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                                    (FPCore (x y)
                                     :precision binary64
                                     (if (<= x 1.25e+39)
                                       (*
                                        (*
                                         (fma
                                          (fma
                                           (fma 0.0003968253968253968 (* y y) 0.016666666666666666)
                                           (* y y)
                                           0.3333333333333333)
                                          (* y y)
                                          2.0)
                                         y)
                                        0.5)
                                       (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5)))
                                    double code(double x, double y) {
                                    	double tmp;
                                    	if (x <= 1.25e+39) {
                                    		tmp = (fma(fma(fma(0.0003968253968253968, (y * y), 0.016666666666666666), (y * y), 0.3333333333333333), (y * y), 2.0) * y) * 0.5;
                                    	} else {
                                    		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                                    	}
                                    	return tmp;
                                    }
                                    
                                    function code(x, y)
                                    	tmp = 0.0
                                    	if (x <= 1.25e+39)
                                    		tmp = Float64(Float64(fma(fma(fma(0.0003968253968253968, Float64(y * y), 0.016666666666666666), Float64(y * y), 0.3333333333333333), Float64(y * y), 2.0) * y) * 0.5);
                                    	else
                                    		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                                    	end
                                    	return tmp
                                    end
                                    
                                    code[x_, y_] := If[LessEqual[x, 1.25e+39], N[(N[(N[(N[(N[(0.0003968253968253968 * N[(y * y), $MachinePrecision] + 0.016666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 0.3333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 2.0), $MachinePrecision] * y), $MachinePrecision] * 0.5), $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                                    
                                    \begin{array}{l}
                                    
                                    \\
                                    \begin{array}{l}
                                    \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\
                                    \;\;\;\;\left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0003968253968253968, y \cdot y, 0.016666666666666666\right), y \cdot y, 0.3333333333333333\right), y \cdot y, 2\right) \cdot y\right) \cdot 0.5\\
                                    
                                    \mathbf{else}:\\
                                    \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                                    
                                    
                                    \end{array}
                                    \end{array}
                                    
                                    Derivation
                                    1. Split input into 2 regimes
                                    2. if x < 1.25000000000000004e39

                                      1. Initial program 84.4%

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

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

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

                                          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                        3. lower--.f64N/A

                                          \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                        4. lower-exp.f64N/A

                                          \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                        5. rec-expN/A

                                          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                        6. lower-exp.f64N/A

                                          \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                        7. lower-neg.f6456.5

                                          \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                      5. Applied rewrites56.5%

                                        \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                      6. Taylor expanded in y around 0

                                        \[\leadsto \left(y \cdot \left(2 + {y}^{2} \cdot \left(\frac{1}{3} + {y}^{2} \cdot \left(\frac{1}{60} + \frac{1}{2520} \cdot {y}^{2}\right)\right)\right)\right) \cdot \frac{1}{2} \]
                                      7. Step-by-step derivation
                                        1. Applied rewrites71.9%

                                          \[\leadsto \left(\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0003968253968253968, y \cdot y, 0.016666666666666666\right), y \cdot y, 0.3333333333333333\right), y \cdot y, 2\right) \cdot y\right) \cdot 0.5 \]

                                        if 1.25000000000000004e39 < x

                                        1. Initial program 99.9%

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

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

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

                                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                          3. lower--.f64N/A

                                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                          4. lower-exp.f64N/A

                                            \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                          5. rec-expN/A

                                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                          6. lower-exp.f64N/A

                                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                          7. lower-neg.f6454.1

                                            \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                        5. Applied rewrites54.1%

                                          \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                        6. Taylor expanded in y around 0

                                          \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                        7. Step-by-step derivation
                                          1. Applied rewrites50.2%

                                            \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                          2. Taylor expanded in y around 0

                                            \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                                          3. Step-by-step derivation
                                            1. Applied rewrites56.9%

                                              \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                                          4. Recombined 2 regimes into one program.
                                          5. Add Preprocessing

                                          Alternative 11: 61.3% accurate, 6.4× speedup?

                                          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\ \;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                                          (FPCore (x y)
                                           :precision binary64
                                           (if (<= x 1.25e+39)
                                             (*
                                              (fma (fma 0.008333333333333333 (* y y) 0.16666666666666666) (* y y) 1.0)
                                              y)
                                             (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5)))
                                          double code(double x, double y) {
                                          	double tmp;
                                          	if (x <= 1.25e+39) {
                                          		tmp = fma(fma(0.008333333333333333, (y * y), 0.16666666666666666), (y * y), 1.0) * y;
                                          	} else {
                                          		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                                          	}
                                          	return tmp;
                                          }
                                          
                                          function code(x, y)
                                          	tmp = 0.0
                                          	if (x <= 1.25e+39)
                                          		tmp = Float64(fma(fma(0.008333333333333333, Float64(y * y), 0.16666666666666666), Float64(y * y), 1.0) * y);
                                          	else
                                          		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                                          	end
                                          	return tmp
                                          end
                                          
                                          code[x_, y_] := If[LessEqual[x, 1.25e+39], N[(N[(N[(0.008333333333333333 * N[(y * y), $MachinePrecision] + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision] * y), $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                                          
                                          \begin{array}{l}
                                          
                                          \\
                                          \begin{array}{l}
                                          \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\
                                          \;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot y\\
                                          
                                          \mathbf{else}:\\
                                          \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                                          
                                          
                                          \end{array}
                                          \end{array}
                                          
                                          Derivation
                                          1. Split input into 2 regimes
                                          2. if x < 1.25000000000000004e39

                                            1. Initial program 84.4%

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

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

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

                                                \[\leadsto \color{blue}{\left({y}^{2} \cdot \left(\frac{1}{120} \cdot \frac{{y}^{2} \cdot \sin x}{x} + \frac{1}{6} \cdot \frac{\sin x}{x}\right) + \frac{\sin x}{x}\right) \cdot y} \]
                                            5. Applied rewrites90.3%

                                              \[\leadsto \color{blue}{\left(\frac{\sin x}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\right) \cdot y} \]
                                            6. Taylor expanded in x around 0

                                              \[\leadsto \left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right) \cdot y \]
                                            7. Step-by-step derivation
                                              1. Applied rewrites68.3%

                                                \[\leadsto \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333, y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \cdot y \]

                                              if 1.25000000000000004e39 < x

                                              1. Initial program 99.9%

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

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

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

                                                  \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                3. lower--.f64N/A

                                                  \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                4. lower-exp.f64N/A

                                                  \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                5. rec-expN/A

                                                  \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                6. lower-exp.f64N/A

                                                  \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                7. lower-neg.f6454.1

                                                  \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                              5. Applied rewrites54.1%

                                                \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                              6. Taylor expanded in y around 0

                                                \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                              7. Step-by-step derivation
                                                1. Applied rewrites50.2%

                                                  \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                                2. Taylor expanded in y around 0

                                                  \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                                                3. Step-by-step derivation
                                                  1. Applied rewrites56.9%

                                                    \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                                                4. Recombined 2 regimes into one program.
                                                5. Add Preprocessing

                                                Alternative 12: 57.5% accurate, 7.7× speedup?

                                                \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\ \;\;\;\;\left(\mathsf{fma}\left(0.3333333333333333, y \cdot y, 2\right) \cdot y\right) \cdot 0.5\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                                                (FPCore (x y)
                                                 :precision binary64
                                                 (if (<= x 1.25e+39)
                                                   (* (* (fma 0.3333333333333333 (* y y) 2.0) y) 0.5)
                                                   (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5)))
                                                double code(double x, double y) {
                                                	double tmp;
                                                	if (x <= 1.25e+39) {
                                                		tmp = (fma(0.3333333333333333, (y * y), 2.0) * y) * 0.5;
                                                	} else {
                                                		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                                                	}
                                                	return tmp;
                                                }
                                                
                                                function code(x, y)
                                                	tmp = 0.0
                                                	if (x <= 1.25e+39)
                                                		tmp = Float64(Float64(fma(0.3333333333333333, Float64(y * y), 2.0) * y) * 0.5);
                                                	else
                                                		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                                                	end
                                                	return tmp
                                                end
                                                
                                                code[x_, y_] := If[LessEqual[x, 1.25e+39], N[(N[(N[(0.3333333333333333 * N[(y * y), $MachinePrecision] + 2.0), $MachinePrecision] * y), $MachinePrecision] * 0.5), $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                                                
                                                \begin{array}{l}
                                                
                                                \\
                                                \begin{array}{l}
                                                \mathbf{if}\;x \leq 1.25 \cdot 10^{+39}:\\
                                                \;\;\;\;\left(\mathsf{fma}\left(0.3333333333333333, y \cdot y, 2\right) \cdot y\right) \cdot 0.5\\
                                                
                                                \mathbf{else}:\\
                                                \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                                                
                                                
                                                \end{array}
                                                \end{array}
                                                
                                                Derivation
                                                1. Split input into 2 regimes
                                                2. if x < 1.25000000000000004e39

                                                  1. Initial program 84.4%

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

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

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

                                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                    3. lower--.f64N/A

                                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                    4. lower-exp.f64N/A

                                                      \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                    5. rec-expN/A

                                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                    6. lower-exp.f64N/A

                                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                    7. lower-neg.f6456.5

                                                      \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                                  5. Applied rewrites56.5%

                                                    \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                                  6. Taylor expanded in y around 0

                                                    \[\leadsto \left(y \cdot \left(2 + \frac{1}{3} \cdot {y}^{2}\right)\right) \cdot \frac{1}{2} \]
                                                  7. Step-by-step derivation
                                                    1. Applied rewrites65.3%

                                                      \[\leadsto \left(\mathsf{fma}\left(0.3333333333333333, y \cdot y, 2\right) \cdot y\right) \cdot 0.5 \]

                                                    if 1.25000000000000004e39 < x

                                                    1. Initial program 99.9%

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

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

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

                                                        \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                      3. lower--.f64N/A

                                                        \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                      4. lower-exp.f64N/A

                                                        \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                      5. rec-expN/A

                                                        \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                      6. lower-exp.f64N/A

                                                        \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                      7. lower-neg.f6454.1

                                                        \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                                    5. Applied rewrites54.1%

                                                      \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                                    6. Taylor expanded in y around 0

                                                      \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                                    7. Step-by-step derivation
                                                      1. Applied rewrites50.2%

                                                        \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                                      2. Taylor expanded in y around 0

                                                        \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                                                      3. Step-by-step derivation
                                                        1. Applied rewrites56.9%

                                                          \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                                                      4. Recombined 2 regimes into one program.
                                                      5. Add Preprocessing

                                                      Alternative 13: 41.7% accurate, 8.0× speedup?

                                                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 2.5:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot x, x, 1\right) \cdot y\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                                                      (FPCore (x y)
                                                       :precision binary64
                                                       (if (<= x 2.5)
                                                         (* (fma (* -0.16666666666666666 x) x 1.0) y)
                                                         (* (- 1.0 (fma (fma 0.5 y -1.0) y 1.0)) 0.5)))
                                                      double code(double x, double y) {
                                                      	double tmp;
                                                      	if (x <= 2.5) {
                                                      		tmp = fma((-0.16666666666666666 * x), x, 1.0) * y;
                                                      	} else {
                                                      		tmp = (1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5;
                                                      	}
                                                      	return tmp;
                                                      }
                                                      
                                                      function code(x, y)
                                                      	tmp = 0.0
                                                      	if (x <= 2.5)
                                                      		tmp = Float64(fma(Float64(-0.16666666666666666 * x), x, 1.0) * y);
                                                      	else
                                                      		tmp = Float64(Float64(1.0 - fma(fma(0.5, y, -1.0), y, 1.0)) * 0.5);
                                                      	end
                                                      	return tmp
                                                      end
                                                      
                                                      code[x_, y_] := If[LessEqual[x, 2.5], N[(N[(N[(-0.16666666666666666 * x), $MachinePrecision] * x + 1.0), $MachinePrecision] * y), $MachinePrecision], N[(N[(1.0 - N[(N[(0.5 * y + -1.0), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                                                      
                                                      \begin{array}{l}
                                                      
                                                      \\
                                                      \begin{array}{l}
                                                      \mathbf{if}\;x \leq 2.5:\\
                                                      \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot x, x, 1\right) \cdot y\\
                                                      
                                                      \mathbf{else}:\\
                                                      \;\;\;\;\left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5\\
                                                      
                                                      
                                                      \end{array}
                                                      \end{array}
                                                      
                                                      Derivation
                                                      1. Split input into 2 regimes
                                                      2. if x < 2.5

                                                        1. Initial program 83.9%

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

                                                          \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
                                                        4. Step-by-step derivation
                                                          1. *-commutativeN/A

                                                            \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                                                          2. associate-*l/N/A

                                                            \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                          3. lower-*.f64N/A

                                                            \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                          4. lower-/.f64N/A

                                                            \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                                                          5. lower-sin.f6448.1

                                                            \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
                                                        5. Applied rewrites48.1%

                                                          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                        6. Taylor expanded in x around 0

                                                          \[\leadsto \left(1 + \frac{-1}{6} \cdot {x}^{2}\right) \cdot y \]
                                                        7. Step-by-step derivation
                                                          1. Applied rewrites36.3%

                                                            \[\leadsto \mathsf{fma}\left(x \cdot x, -0.16666666666666666, 1\right) \cdot y \]
                                                          2. Step-by-step derivation
                                                            1. Applied rewrites36.3%

                                                              \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot x, x, 1\right) \cdot y \]

                                                            if 2.5 < x

                                                            1. Initial program 99.8%

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

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

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

                                                                \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                              3. lower--.f64N/A

                                                                \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                              4. lower-exp.f64N/A

                                                                \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                              5. rec-expN/A

                                                                \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                              6. lower-exp.f64N/A

                                                                \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                              7. lower-neg.f6451.2

                                                                \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                                            5. Applied rewrites51.2%

                                                              \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                                            6. Taylor expanded in y around 0

                                                              \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                                            7. Step-by-step derivation
                                                              1. Applied rewrites46.0%

                                                                \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                                              2. Taylor expanded in y around 0

                                                                \[\leadsto \left(1 - \left(1 + y \cdot \left(\frac{1}{2} \cdot y - 1\right)\right)\right) \cdot \frac{1}{2} \]
                                                              3. Step-by-step derivation
                                                                1. Applied rewrites51.8%

                                                                  \[\leadsto \left(1 - \mathsf{fma}\left(\mathsf{fma}\left(0.5, y, -1\right), y, 1\right)\right) \cdot 0.5 \]
                                                              4. Recombined 2 regimes into one program.
                                                              5. Add Preprocessing

                                                              Alternative 14: 34.5% accurate, 12.0× speedup?

                                                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 7 \cdot 10^{+38}:\\ \;\;\;\;1 \cdot y\\ \mathbf{else}:\\ \;\;\;\;\left(1 - \left(1 - y\right)\right) \cdot 0.5\\ \end{array} \end{array} \]
                                                              (FPCore (x y)
                                                               :precision binary64
                                                               (if (<= x 7e+38) (* 1.0 y) (* (- 1.0 (- 1.0 y)) 0.5)))
                                                              double code(double x, double y) {
                                                              	double tmp;
                                                              	if (x <= 7e+38) {
                                                              		tmp = 1.0 * y;
                                                              	} else {
                                                              		tmp = (1.0 - (1.0 - y)) * 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 <= 7d+38) then
                                                                      tmp = 1.0d0 * y
                                                                  else
                                                                      tmp = (1.0d0 - (1.0d0 - y)) * 0.5d0
                                                                  end if
                                                                  code = tmp
                                                              end function
                                                              
                                                              public static double code(double x, double y) {
                                                              	double tmp;
                                                              	if (x <= 7e+38) {
                                                              		tmp = 1.0 * y;
                                                              	} else {
                                                              		tmp = (1.0 - (1.0 - y)) * 0.5;
                                                              	}
                                                              	return tmp;
                                                              }
                                                              
                                                              def code(x, y):
                                                              	tmp = 0
                                                              	if x <= 7e+38:
                                                              		tmp = 1.0 * y
                                                              	else:
                                                              		tmp = (1.0 - (1.0 - y)) * 0.5
                                                              	return tmp
                                                              
                                                              function code(x, y)
                                                              	tmp = 0.0
                                                              	if (x <= 7e+38)
                                                              		tmp = Float64(1.0 * y);
                                                              	else
                                                              		tmp = Float64(Float64(1.0 - Float64(1.0 - y)) * 0.5);
                                                              	end
                                                              	return tmp
                                                              end
                                                              
                                                              function tmp_2 = code(x, y)
                                                              	tmp = 0.0;
                                                              	if (x <= 7e+38)
                                                              		tmp = 1.0 * y;
                                                              	else
                                                              		tmp = (1.0 - (1.0 - y)) * 0.5;
                                                              	end
                                                              	tmp_2 = tmp;
                                                              end
                                                              
                                                              code[x_, y_] := If[LessEqual[x, 7e+38], N[(1.0 * y), $MachinePrecision], N[(N[(1.0 - N[(1.0 - y), $MachinePrecision]), $MachinePrecision] * 0.5), $MachinePrecision]]
                                                              
                                                              \begin{array}{l}
                                                              
                                                              \\
                                                              \begin{array}{l}
                                                              \mathbf{if}\;x \leq 7 \cdot 10^{+38}:\\
                                                              \;\;\;\;1 \cdot y\\
                                                              
                                                              \mathbf{else}:\\
                                                              \;\;\;\;\left(1 - \left(1 - y\right)\right) \cdot 0.5\\
                                                              
                                                              
                                                              \end{array}
                                                              \end{array}
                                                              
                                                              Derivation
                                                              1. Split input into 2 regimes
                                                              2. if x < 7.00000000000000003e38

                                                                1. Initial program 84.4%

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

                                                                  \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
                                                                4. Step-by-step derivation
                                                                  1. *-commutativeN/A

                                                                    \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                                                                  2. associate-*l/N/A

                                                                    \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                  3. lower-*.f64N/A

                                                                    \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                  4. lower-/.f64N/A

                                                                    \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                                                                  5. lower-sin.f6448.5

                                                                    \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
                                                                5. Applied rewrites48.5%

                                                                  \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                6. Taylor expanded in x around 0

                                                                  \[\leadsto 1 \cdot y \]
                                                                7. Step-by-step derivation
                                                                  1. Applied rewrites32.1%

                                                                    \[\leadsto 1 \cdot y \]

                                                                  if 7.00000000000000003e38 < x

                                                                  1. Initial program 99.9%

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

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

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

                                                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                                    3. lower--.f64N/A

                                                                      \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                                    4. lower-exp.f64N/A

                                                                      \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                                    5. rec-expN/A

                                                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                                    6. lower-exp.f64N/A

                                                                      \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                                    7. lower-neg.f6454.1

                                                                      \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                                                  5. Applied rewrites54.1%

                                                                    \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                                                  6. Taylor expanded in y around 0

                                                                    \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                                                  7. Step-by-step derivation
                                                                    1. Applied rewrites50.2%

                                                                      \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                                                    2. Taylor expanded in y around 0

                                                                      \[\leadsto \left(1 - \left(1 + -1 \cdot y\right)\right) \cdot \frac{1}{2} \]
                                                                    3. Step-by-step derivation
                                                                      1. Applied rewrites44.4%

                                                                        \[\leadsto \left(1 - \left(1 - y\right)\right) \cdot 0.5 \]
                                                                    4. Recombined 2 regimes into one program.
                                                                    5. Add Preprocessing

                                                                    Alternative 15: 34.4% accurate, 14.5× speedup?

                                                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq 7 \cdot 10^{+38}:\\ \;\;\;\;1 \cdot y\\ \mathbf{else}:\\ \;\;\;\;\left(1 - 1\right) \cdot 0.5\\ \end{array} \end{array} \]
                                                                    (FPCore (x y)
                                                                     :precision binary64
                                                                     (if (<= x 7e+38) (* 1.0 y) (* (- 1.0 1.0) 0.5)))
                                                                    double code(double x, double y) {
                                                                    	double tmp;
                                                                    	if (x <= 7e+38) {
                                                                    		tmp = 1.0 * y;
                                                                    	} else {
                                                                    		tmp = (1.0 - 1.0) * 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 <= 7d+38) then
                                                                            tmp = 1.0d0 * y
                                                                        else
                                                                            tmp = (1.0d0 - 1.0d0) * 0.5d0
                                                                        end if
                                                                        code = tmp
                                                                    end function
                                                                    
                                                                    public static double code(double x, double y) {
                                                                    	double tmp;
                                                                    	if (x <= 7e+38) {
                                                                    		tmp = 1.0 * y;
                                                                    	} else {
                                                                    		tmp = (1.0 - 1.0) * 0.5;
                                                                    	}
                                                                    	return tmp;
                                                                    }
                                                                    
                                                                    def code(x, y):
                                                                    	tmp = 0
                                                                    	if x <= 7e+38:
                                                                    		tmp = 1.0 * y
                                                                    	else:
                                                                    		tmp = (1.0 - 1.0) * 0.5
                                                                    	return tmp
                                                                    
                                                                    function code(x, y)
                                                                    	tmp = 0.0
                                                                    	if (x <= 7e+38)
                                                                    		tmp = Float64(1.0 * y);
                                                                    	else
                                                                    		tmp = Float64(Float64(1.0 - 1.0) * 0.5);
                                                                    	end
                                                                    	return tmp
                                                                    end
                                                                    
                                                                    function tmp_2 = code(x, y)
                                                                    	tmp = 0.0;
                                                                    	if (x <= 7e+38)
                                                                    		tmp = 1.0 * y;
                                                                    	else
                                                                    		tmp = (1.0 - 1.0) * 0.5;
                                                                    	end
                                                                    	tmp_2 = tmp;
                                                                    end
                                                                    
                                                                    code[x_, y_] := If[LessEqual[x, 7e+38], N[(1.0 * y), $MachinePrecision], N[(N[(1.0 - 1.0), $MachinePrecision] * 0.5), $MachinePrecision]]
                                                                    
                                                                    \begin{array}{l}
                                                                    
                                                                    \\
                                                                    \begin{array}{l}
                                                                    \mathbf{if}\;x \leq 7 \cdot 10^{+38}:\\
                                                                    \;\;\;\;1 \cdot y\\
                                                                    
                                                                    \mathbf{else}:\\
                                                                    \;\;\;\;\left(1 - 1\right) \cdot 0.5\\
                                                                    
                                                                    
                                                                    \end{array}
                                                                    \end{array}
                                                                    
                                                                    Derivation
                                                                    1. Split input into 2 regimes
                                                                    2. if x < 7.00000000000000003e38

                                                                      1. Initial program 84.4%

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

                                                                        \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
                                                                      4. Step-by-step derivation
                                                                        1. *-commutativeN/A

                                                                          \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                                                                        2. associate-*l/N/A

                                                                          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                        3. lower-*.f64N/A

                                                                          \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                        4. lower-/.f64N/A

                                                                          \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                                                                        5. lower-sin.f6448.5

                                                                          \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
                                                                      5. Applied rewrites48.5%

                                                                        \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                      6. Taylor expanded in x around 0

                                                                        \[\leadsto 1 \cdot y \]
                                                                      7. Step-by-step derivation
                                                                        1. Applied rewrites32.1%

                                                                          \[\leadsto 1 \cdot y \]

                                                                        if 7.00000000000000003e38 < x

                                                                        1. Initial program 99.9%

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

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

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

                                                                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2}} \]
                                                                          3. lower--.f64N/A

                                                                            \[\leadsto \color{blue}{\left(e^{y} - \frac{1}{e^{y}}\right)} \cdot \frac{1}{2} \]
                                                                          4. lower-exp.f64N/A

                                                                            \[\leadsto \left(\color{blue}{e^{y}} - \frac{1}{e^{y}}\right) \cdot \frac{1}{2} \]
                                                                          5. rec-expN/A

                                                                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                                          6. lower-exp.f64N/A

                                                                            \[\leadsto \left(e^{y} - \color{blue}{e^{\mathsf{neg}\left(y\right)}}\right) \cdot \frac{1}{2} \]
                                                                          7. lower-neg.f6454.1

                                                                            \[\leadsto \left(e^{y} - e^{\color{blue}{-y}}\right) \cdot 0.5 \]
                                                                        5. Applied rewrites54.1%

                                                                          \[\leadsto \color{blue}{\left(e^{y} - e^{-y}\right) \cdot 0.5} \]
                                                                        6. Taylor expanded in y around 0

                                                                          \[\leadsto \left(1 - e^{-y}\right) \cdot \frac{1}{2} \]
                                                                        7. Step-by-step derivation
                                                                          1. Applied rewrites50.2%

                                                                            \[\leadsto \left(1 - e^{-y}\right) \cdot 0.5 \]
                                                                          2. Taylor expanded in y around 0

                                                                            \[\leadsto \left(1 - 1\right) \cdot \frac{1}{2} \]
                                                                          3. Step-by-step derivation
                                                                            1. Applied rewrites44.4%

                                                                              \[\leadsto \left(1 - 1\right) \cdot 0.5 \]
                                                                          4. Recombined 2 regimes into one program.
                                                                          5. Add Preprocessing

                                                                          Alternative 16: 28.6% accurate, 36.2× speedup?

                                                                          \[\begin{array}{l} \\ 1 \cdot y \end{array} \]
                                                                          (FPCore (x y) :precision binary64 (* 1.0 y))
                                                                          double code(double x, double y) {
                                                                          	return 1.0 * y;
                                                                          }
                                                                          
                                                                          real(8) function code(x, y)
                                                                              real(8), intent (in) :: x
                                                                              real(8), intent (in) :: y
                                                                              code = 1.0d0 * y
                                                                          end function
                                                                          
                                                                          public static double code(double x, double y) {
                                                                          	return 1.0 * y;
                                                                          }
                                                                          
                                                                          def code(x, y):
                                                                          	return 1.0 * y
                                                                          
                                                                          function code(x, y)
                                                                          	return Float64(1.0 * y)
                                                                          end
                                                                          
                                                                          function tmp = code(x, y)
                                                                          	tmp = 1.0 * y;
                                                                          end
                                                                          
                                                                          code[x_, y_] := N[(1.0 * y), $MachinePrecision]
                                                                          
                                                                          \begin{array}{l}
                                                                          
                                                                          \\
                                                                          1 \cdot y
                                                                          \end{array}
                                                                          
                                                                          Derivation
                                                                          1. Initial program 87.3%

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

                                                                            \[\leadsto \color{blue}{\frac{y \cdot \sin x}{x}} \]
                                                                          4. Step-by-step derivation
                                                                            1. *-commutativeN/A

                                                                              \[\leadsto \frac{\color{blue}{\sin x \cdot y}}{x} \]
                                                                            2. associate-*l/N/A

                                                                              \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                            3. lower-*.f64N/A

                                                                              \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                            4. lower-/.f64N/A

                                                                              \[\leadsto \color{blue}{\frac{\sin x}{x}} \cdot y \]
                                                                            5. lower-sin.f6450.6

                                                                              \[\leadsto \frac{\color{blue}{\sin x}}{x} \cdot y \]
                                                                          5. Applied rewrites50.6%

                                                                            \[\leadsto \color{blue}{\frac{\sin x}{x} \cdot y} \]
                                                                          6. Taylor expanded in x around 0

                                                                            \[\leadsto 1 \cdot y \]
                                                                          7. Step-by-step derivation
                                                                            1. Applied rewrites26.9%

                                                                              \[\leadsto 1 \cdot y \]
                                                                            2. Add Preprocessing

                                                                            Developer Target 1: 99.8% accurate, 1.0× speedup?

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

                                                                            Reproduce

                                                                            ?
                                                                            herbie shell --seed 2024277 
                                                                            (FPCore (x y)
                                                                              :name "Linear.Quaternion:$ccosh from linear-1.19.1.3"
                                                                              :precision binary64
                                                                            
                                                                              :alt
                                                                              (! :herbie-platform default (* (sin x) (/ (sinh y) x)))
                                                                            
                                                                              (/ (* (sin x) (sinh y)) x))