Linear.Quaternion:$ccos from linear-1.19.1.3

Percentage Accurate: 100.0% → 100.0%
Time: 3.6s
Alternatives: 13
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

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

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

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 13 alternatives:

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

Initial Program: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

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

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

Alternative 1: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

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

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

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

Alternative 2: 74.1% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
   (if (<= t_1 (- INFINITY))
     (* (* (* x x) (* x -0.16666666666666666)) t_0)
     (if (<= t_1 1.0)
       (* (sin x) (fma (* y y) 0.16666666666666666 1.0))
       (/ (* x (sinh y)) y)))))
double code(double x, double y) {
	double t_0 = sinh(y) / y;
	double t_1 = sin(x) * t_0;
	double tmp;
	if (t_1 <= -((double) INFINITY)) {
		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
	} else if (t_1 <= 1.0) {
		tmp = sin(x) * fma((y * y), 0.16666666666666666, 1.0);
	} else {
		tmp = (x * sinh(y)) / y;
	}
	return tmp;
}
function code(x, y)
	t_0 = Float64(sinh(y) / y)
	t_1 = Float64(sin(x) * t_0)
	tmp = 0.0
	if (t_1 <= Float64(-Inf))
		tmp = Float64(Float64(Float64(x * x) * Float64(x * -0.16666666666666666)) * t_0);
	elseif (t_1 <= 1.0)
		tmp = Float64(sin(x) * fma(Float64(y * y), 0.16666666666666666, 1.0));
	else
		tmp = Float64(Float64(x * sinh(y)) / y);
	end
	return tmp
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(N[(x * x), $MachinePrecision] * N[(x * -0.16666666666666666), $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[(N[Sin[x], $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision]), $MachinePrecision], N[(N[(x * N[Sinh[y], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{\sinh y}{y}\\
t_1 := \sin x \cdot t\_0\\
\mathbf{if}\;t\_1 \leq -\infty:\\
\;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\

\mathbf{elif}\;t\_1 \leq 1:\\
\;\;\;\;\sin x \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x \cdot \sinh y}{y}\\


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

    1. Initial program 100.0%

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

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

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

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

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

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

        \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
      6. lower-*.f6462.9

        \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
    4. Applied rewrites62.9%

      \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
    5. Taylor expanded in x around inf

      \[\leadsto \left(\frac{-1}{6} \cdot \color{blue}{{x}^{3}}\right) \cdot \frac{\sinh y}{y} \]
    6. Step-by-step derivation
      1. *-commutativeN/A

        \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      2. lower-*.f64N/A

        \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      3. unpow3N/A

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      4. pow2N/A

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

        \[\leadsto \left(\left({x}^{2} \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      6. pow2N/A

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      7. lift-*.f6414.3

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
    7. Applied rewrites14.3%

      \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
    8. Step-by-step derivation
      1. lift-*.f64N/A

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      2. lift-*.f64N/A

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
      3. pow2N/A

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

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

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

        \[\leadsto \left({x}^{2} \cdot \left(x \cdot \color{blue}{\frac{-1}{6}}\right)\right) \cdot \frac{\sinh y}{y} \]
      7. pow2N/A

        \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
      8. lift-*.f64N/A

        \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
      9. lower-*.f6414.3

        \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot \frac{\sinh y}{y} \]
    9. Applied rewrites14.3%

      \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \color{blue}{-0.16666666666666666}\right)\right) \cdot \frac{\sinh y}{y} \]

    if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

    1. Initial program 100.0%

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

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

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

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

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

        \[\leadsto \sin x \cdot \mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \]
      5. lower-*.f6475.6

        \[\leadsto \sin x \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \]
    4. Applied rewrites75.6%

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

    if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

    1. Initial program 100.0%

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

      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
    3. Step-by-step derivation
      1. Applied rewrites62.8%

        \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
      2. Step-by-step derivation
        1. lift-*.f64N/A

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

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

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

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

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

          \[\leadsto \frac{\color{blue}{x \cdot \sinh y}}{y} \]
        7. lift-sinh.f6451.9

          \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
      3. Applied rewrites51.9%

        \[\leadsto \color{blue}{\frac{x \cdot \sinh y}{y}} \]
    4. Recombined 3 regimes into one program.
    5. Add Preprocessing

    Alternative 3: 73.9% accurate, 0.4× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
    (FPCore (x y)
     :precision binary64
     (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
       (if (<= t_1 (- INFINITY))
         (* (* (* x x) (* x -0.16666666666666666)) t_0)
         (if (<= t_1 1.0) (* (sin x) 1.0) (/ (* x (sinh y)) y)))))
    double code(double x, double y) {
    	double t_0 = sinh(y) / y;
    	double t_1 = sin(x) * t_0;
    	double tmp;
    	if (t_1 <= -((double) INFINITY)) {
    		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
    	} else if (t_1 <= 1.0) {
    		tmp = sin(x) * 1.0;
    	} else {
    		tmp = (x * sinh(y)) / y;
    	}
    	return tmp;
    }
    
    public static double code(double x, double y) {
    	double t_0 = Math.sinh(y) / y;
    	double t_1 = Math.sin(x) * t_0;
    	double tmp;
    	if (t_1 <= -Double.POSITIVE_INFINITY) {
    		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
    	} else if (t_1 <= 1.0) {
    		tmp = Math.sin(x) * 1.0;
    	} else {
    		tmp = (x * Math.sinh(y)) / y;
    	}
    	return tmp;
    }
    
    def code(x, y):
    	t_0 = math.sinh(y) / y
    	t_1 = math.sin(x) * t_0
    	tmp = 0
    	if t_1 <= -math.inf:
    		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0
    	elif t_1 <= 1.0:
    		tmp = math.sin(x) * 1.0
    	else:
    		tmp = (x * math.sinh(y)) / y
    	return tmp
    
    function code(x, y)
    	t_0 = Float64(sinh(y) / y)
    	t_1 = Float64(sin(x) * t_0)
    	tmp = 0.0
    	if (t_1 <= Float64(-Inf))
    		tmp = Float64(Float64(Float64(x * x) * Float64(x * -0.16666666666666666)) * t_0);
    	elseif (t_1 <= 1.0)
    		tmp = Float64(sin(x) * 1.0);
    	else
    		tmp = Float64(Float64(x * sinh(y)) / y);
    	end
    	return tmp
    end
    
    function tmp_2 = code(x, y)
    	t_0 = sinh(y) / y;
    	t_1 = sin(x) * t_0;
    	tmp = 0.0;
    	if (t_1 <= -Inf)
    		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
    	elseif (t_1 <= 1.0)
    		tmp = sin(x) * 1.0;
    	else
    		tmp = (x * sinh(y)) / y;
    	end
    	tmp_2 = tmp;
    end
    
    code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(N[(x * x), $MachinePrecision] * N[(x * -0.16666666666666666), $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[(N[Sin[x], $MachinePrecision] * 1.0), $MachinePrecision], N[(N[(x * N[Sinh[y], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]]]]
    
    \begin{array}{l}
    
    \\
    \begin{array}{l}
    t_0 := \frac{\sinh y}{y}\\
    t_1 := \sin x \cdot t\_0\\
    \mathbf{if}\;t\_1 \leq -\infty:\\
    \;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\
    
    \mathbf{elif}\;t\_1 \leq 1:\\
    \;\;\;\;\sin x \cdot 1\\
    
    \mathbf{else}:\\
    \;\;\;\;\frac{x \cdot \sinh y}{y}\\
    
    
    \end{array}
    \end{array}
    
    Derivation
    1. Split input into 3 regimes
    2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

      1. Initial program 100.0%

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

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

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

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

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

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

          \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
        6. lower-*.f6462.9

          \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
      4. Applied rewrites62.9%

        \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
      5. Taylor expanded in x around inf

        \[\leadsto \left(\frac{-1}{6} \cdot \color{blue}{{x}^{3}}\right) \cdot \frac{\sinh y}{y} \]
      6. Step-by-step derivation
        1. *-commutativeN/A

          \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        2. lower-*.f64N/A

          \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        3. unpow3N/A

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        4. pow2N/A

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

          \[\leadsto \left(\left({x}^{2} \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        6. pow2N/A

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        7. lift-*.f6414.3

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
      7. Applied rewrites14.3%

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
      8. Step-by-step derivation
        1. lift-*.f64N/A

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        2. lift-*.f64N/A

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
        3. pow2N/A

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

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

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

          \[\leadsto \left({x}^{2} \cdot \left(x \cdot \color{blue}{\frac{-1}{6}}\right)\right) \cdot \frac{\sinh y}{y} \]
        7. pow2N/A

          \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
        8. lift-*.f64N/A

          \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
        9. lower-*.f6414.3

          \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot \frac{\sinh y}{y} \]
      9. Applied rewrites14.3%

        \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \color{blue}{-0.16666666666666666}\right)\right) \cdot \frac{\sinh y}{y} \]

      if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

      1. Initial program 100.0%

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

        \[\leadsto \sin x \cdot \color{blue}{1} \]
      3. Step-by-step derivation
        1. Applied rewrites50.5%

          \[\leadsto \sin x \cdot \color{blue}{1} \]

        if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

        1. Initial program 100.0%

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

          \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
        3. Step-by-step derivation
          1. Applied rewrites62.8%

            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
          2. Step-by-step derivation
            1. lift-*.f64N/A

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

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

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

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

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

              \[\leadsto \frac{\color{blue}{x \cdot \sinh y}}{y} \]
            7. lift-sinh.f6451.9

              \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
          3. Applied rewrites51.9%

            \[\leadsto \color{blue}{\frac{x \cdot \sinh y}{y}} \]
        4. Recombined 3 regimes into one program.
        5. Add Preprocessing

        Alternative 4: 62.9% accurate, 0.6× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq -0.005:\\ \;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
        (FPCore (x y)
         :precision binary64
         (let* ((t_0 (/ (sinh y) y)))
           (if (<= (* (sin x) t_0) -0.005)
             (* (* (* x x) (* x -0.16666666666666666)) t_0)
             (* x t_0))))
        double code(double x, double y) {
        	double t_0 = sinh(y) / y;
        	double tmp;
        	if ((sin(x) * t_0) <= -0.005) {
        		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
        	} else {
        		tmp = x * t_0;
        	}
        	return tmp;
        }
        
        module fmin_fmax_functions
            implicit none
            private
            public fmax
            public fmin
        
            interface fmax
                module procedure fmax88
                module procedure fmax44
                module procedure fmax84
                module procedure fmax48
            end interface
            interface fmin
                module procedure fmin88
                module procedure fmin44
                module procedure fmin84
                module procedure fmin48
            end interface
        contains
            real(8) function fmax88(x, y) result (res)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(x, max(x, y), y /= y), x /= x)
            end function
            real(4) function fmax44(x, y) result (res)
                real(4), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(y, merge(x, max(x, y), y /= y), x /= x)
            end function
            real(8) function fmax84(x, y) result(res)
                real(8), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
            end function
            real(8) function fmax48(x, y) result(res)
                real(4), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
            end function
            real(8) function fmin88(x, y) result (res)
                real(8), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(x, min(x, y), y /= y), x /= x)
            end function
            real(4) function fmin44(x, y) result (res)
                real(4), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(y, merge(x, min(x, y), y /= y), x /= x)
            end function
            real(8) function fmin84(x, y) result(res)
                real(8), intent (in) :: x
                real(4), intent (in) :: y
                res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
            end function
            real(8) function fmin48(x, y) result(res)
                real(4), intent (in) :: x
                real(8), intent (in) :: y
                res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
            end function
        end module
        
        real(8) function code(x, y)
        use fmin_fmax_functions
            real(8), intent (in) :: x
            real(8), intent (in) :: y
            real(8) :: t_0
            real(8) :: tmp
            t_0 = sinh(y) / y
            if ((sin(x) * t_0) <= (-0.005d0)) then
                tmp = ((x * x) * (x * (-0.16666666666666666d0))) * t_0
            else
                tmp = x * t_0
            end if
            code = tmp
        end function
        
        public static double code(double x, double y) {
        	double t_0 = Math.sinh(y) / y;
        	double tmp;
        	if ((Math.sin(x) * t_0) <= -0.005) {
        		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
        	} else {
        		tmp = x * t_0;
        	}
        	return tmp;
        }
        
        def code(x, y):
        	t_0 = math.sinh(y) / y
        	tmp = 0
        	if (math.sin(x) * t_0) <= -0.005:
        		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0
        	else:
        		tmp = x * t_0
        	return tmp
        
        function code(x, y)
        	t_0 = Float64(sinh(y) / y)
        	tmp = 0.0
        	if (Float64(sin(x) * t_0) <= -0.005)
        		tmp = Float64(Float64(Float64(x * x) * Float64(x * -0.16666666666666666)) * t_0);
        	else
        		tmp = Float64(x * t_0);
        	end
        	return tmp
        end
        
        function tmp_2 = code(x, y)
        	t_0 = sinh(y) / y;
        	tmp = 0.0;
        	if ((sin(x) * t_0) <= -0.005)
        		tmp = ((x * x) * (x * -0.16666666666666666)) * t_0;
        	else
        		tmp = x * t_0;
        	end
        	tmp_2 = tmp;
        end
        
        code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, If[LessEqual[N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision], -0.005], N[(N[(N[(x * x), $MachinePrecision] * N[(x * -0.16666666666666666), $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]
        
        \begin{array}{l}
        
        \\
        \begin{array}{l}
        t_0 := \frac{\sinh y}{y}\\
        \mathbf{if}\;\sin x \cdot t\_0 \leq -0.005:\\
        \;\;\;\;\left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot t\_0\\
        
        \mathbf{else}:\\
        \;\;\;\;x \cdot t\_0\\
        
        
        \end{array}
        \end{array}
        
        Derivation
        1. Split input into 2 regimes
        2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.0050000000000000001

          1. Initial program 100.0%

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

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

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

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

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

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

              \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
            6. lower-*.f6462.9

              \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
          4. Applied rewrites62.9%

            \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
          5. Taylor expanded in x around inf

            \[\leadsto \left(\frac{-1}{6} \cdot \color{blue}{{x}^{3}}\right) \cdot \frac{\sinh y}{y} \]
          6. Step-by-step derivation
            1. *-commutativeN/A

              \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            2. lower-*.f64N/A

              \[\leadsto \left({x}^{3} \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            3. unpow3N/A

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            4. pow2N/A

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

              \[\leadsto \left(\left({x}^{2} \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            6. pow2N/A

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            7. lift-*.f6414.3

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
          7. Applied rewrites14.3%

            \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
          8. Step-by-step derivation
            1. lift-*.f64N/A

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            2. lift-*.f64N/A

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\sinh y}{y} \]
            3. pow2N/A

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

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

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

              \[\leadsto \left({x}^{2} \cdot \left(x \cdot \color{blue}{\frac{-1}{6}}\right)\right) \cdot \frac{\sinh y}{y} \]
            7. pow2N/A

              \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
            8. lift-*.f64N/A

              \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \frac{-1}{6}\right)\right) \cdot \frac{\sinh y}{y} \]
            9. lower-*.f6414.3

              \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot -0.16666666666666666\right)\right) \cdot \frac{\sinh y}{y} \]
          9. Applied rewrites14.3%

            \[\leadsto \left(\left(x \cdot x\right) \cdot \left(x \cdot \color{blue}{-0.16666666666666666}\right)\right) \cdot \frac{\sinh y}{y} \]

          if -0.0050000000000000001 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

          1. Initial program 100.0%

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

            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
          3. Step-by-step derivation
            1. Applied rewrites62.8%

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

          Alternative 5: 49.9% accurate, 0.6× speedup?

          \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq 5 \cdot 10^{-58}:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot t\_0\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
          (FPCore (x y)
           :precision binary64
           (let* ((t_0 (/ (sinh y) y)))
             (if (<= (* (sin x) t_0) 5e-58)
               (* (* (fma -0.16666666666666666 (* x x) 1.0) x) t_0)
               (/ (* x (sinh y)) y))))
          double code(double x, double y) {
          	double t_0 = sinh(y) / y;
          	double tmp;
          	if ((sin(x) * t_0) <= 5e-58) {
          		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * t_0;
          	} else {
          		tmp = (x * sinh(y)) / y;
          	}
          	return tmp;
          }
          
          function code(x, y)
          	t_0 = Float64(sinh(y) / y)
          	tmp = 0.0
          	if (Float64(sin(x) * t_0) <= 5e-58)
          		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * t_0);
          	else
          		tmp = Float64(Float64(x * sinh(y)) / y);
          	end
          	return tmp
          end
          
          code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, If[LessEqual[N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision], 5e-58], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * t$95$0), $MachinePrecision], N[(N[(x * N[Sinh[y], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]]
          
          \begin{array}{l}
          
          \\
          \begin{array}{l}
          t_0 := \frac{\sinh y}{y}\\
          \mathbf{if}\;\sin x \cdot t\_0 \leq 5 \cdot 10^{-58}:\\
          \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot t\_0\\
          
          \mathbf{else}:\\
          \;\;\;\;\frac{x \cdot \sinh y}{y}\\
          
          
          \end{array}
          \end{array}
          
          Derivation
          1. Split input into 2 regimes
          2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 4.99999999999999977e-58

            1. Initial program 100.0%

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

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

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

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

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

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

                \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
              6. lower-*.f6462.9

                \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
            4. Applied rewrites62.9%

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

            if 4.99999999999999977e-58 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

            1. Initial program 100.0%

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

              \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
            3. Step-by-step derivation
              1. Applied rewrites62.8%

                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
              2. Step-by-step derivation
                1. lift-*.f64N/A

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

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

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

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

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

                  \[\leadsto \frac{\color{blue}{x \cdot \sinh y}}{y} \]
                7. lift-sinh.f6451.9

                  \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
              3. Applied rewrites51.9%

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

            Alternative 6: 48.0% accurate, 0.7× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq -0.005:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
            (FPCore (x y)
             :precision binary64
             (let* ((t_0 (/ (sinh y) y)))
               (if (<= (* (sin x) t_0) -0.005)
                 (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                 (* x t_0))))
            double code(double x, double y) {
            	double t_0 = sinh(y) / y;
            	double tmp;
            	if ((sin(x) * t_0) <= -0.005) {
            		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
            	} else {
            		tmp = x * t_0;
            	}
            	return tmp;
            }
            
            function code(x, y)
            	t_0 = Float64(sinh(y) / y)
            	tmp = 0.0
            	if (Float64(sin(x) * t_0) <= -0.005)
            		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
            	else
            		tmp = Float64(x * t_0);
            	end
            	return tmp
            end
            
            code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, If[LessEqual[N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision], -0.005], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            t_0 := \frac{\sinh y}{y}\\
            \mathbf{if}\;\sin x \cdot t\_0 \leq -0.005:\\
            \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
            
            \mathbf{else}:\\
            \;\;\;\;x \cdot t\_0\\
            
            
            \end{array}
            \end{array}
            
            Derivation
            1. Split input into 2 regimes
            2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.0050000000000000001

              1. Initial program 100.0%

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

                \[\leadsto \sin x \cdot \color{blue}{1} \]
              3. Step-by-step derivation
                1. Applied rewrites50.5%

                  \[\leadsto \sin x \cdot \color{blue}{1} \]
                2. Taylor expanded in x around 0

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

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

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

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

                    \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                  5. lower-fma.f64N/A

                    \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  6. lower--.f64N/A

                    \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  7. *-commutativeN/A

                    \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  8. lower-*.f64N/A

                    \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  9. pow2N/A

                    \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  10. lift-*.f64N/A

                    \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                  11. pow2N/A

                    \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                  12. lift-*.f6435.2

                    \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                4. Applied rewrites35.2%

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

                  \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                6. Step-by-step derivation
                  1. Applied rewrites33.9%

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

                  if -0.0050000000000000001 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                  1. Initial program 100.0%

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

                    \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                  3. Step-by-step derivation
                    1. Applied rewrites62.8%

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

                  Alternative 7: 47.5% accurate, 0.7× speedup?

                  \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-58}:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
                  (FPCore (x y)
                   :precision binary64
                   (if (<= (* (sin x) (/ (sinh y) y)) 5e-58)
                     (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                     (/ (* x (sinh y)) y)))
                  double code(double x, double y) {
                  	double tmp;
                  	if ((sin(x) * (sinh(y) / y)) <= 5e-58) {
                  		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
                  	} else {
                  		tmp = (x * sinh(y)) / y;
                  	}
                  	return tmp;
                  }
                  
                  function code(x, y)
                  	tmp = 0.0
                  	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 5e-58)
                  		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
                  	else
                  		tmp = Float64(Float64(x * sinh(y)) / y);
                  	end
                  	return tmp
                  end
                  
                  code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 5e-58], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(N[(x * N[Sinh[y], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
                  
                  \begin{array}{l}
                  
                  \\
                  \begin{array}{l}
                  \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-58}:\\
                  \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
                  
                  \mathbf{else}:\\
                  \;\;\;\;\frac{x \cdot \sinh y}{y}\\
                  
                  
                  \end{array}
                  \end{array}
                  
                  Derivation
                  1. Split input into 2 regimes
                  2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 4.99999999999999977e-58

                    1. Initial program 100.0%

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

                      \[\leadsto \sin x \cdot \color{blue}{1} \]
                    3. Step-by-step derivation
                      1. Applied rewrites50.5%

                        \[\leadsto \sin x \cdot \color{blue}{1} \]
                      2. Taylor expanded in x around 0

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

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

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

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

                          \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                        5. lower-fma.f64N/A

                          \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        6. lower--.f64N/A

                          \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        7. *-commutativeN/A

                          \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        8. lower-*.f64N/A

                          \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        9. pow2N/A

                          \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        10. lift-*.f64N/A

                          \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                        11. pow2N/A

                          \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                        12. lift-*.f6435.2

                          \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                      4. Applied rewrites35.2%

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

                        \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                      6. Step-by-step derivation
                        1. Applied rewrites33.9%

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

                        if 4.99999999999999977e-58 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                        1. Initial program 100.0%

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

                          \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                        3. Step-by-step derivation
                          1. Applied rewrites62.8%

                            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                          2. Step-by-step derivation
                            1. lift-*.f64N/A

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

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

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

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

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

                              \[\leadsto \frac{\color{blue}{x \cdot \sinh y}}{y} \]
                            7. lift-sinh.f6451.9

                              \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
                          3. Applied rewrites51.9%

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

                        Alternative 8: 47.4% accurate, 0.7× speedup?

                        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-58}:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y\right)}{y}\\ \end{array} \end{array} \]
                        (FPCore (x y)
                         :precision binary64
                         (if (<= (* (sin x) (/ (sinh y) y)) 5e-58)
                           (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                           (/ (* x (* (fma (* y y) 0.16666666666666666 1.0) y)) y)))
                        double code(double x, double y) {
                        	double tmp;
                        	if ((sin(x) * (sinh(y) / y)) <= 5e-58) {
                        		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
                        	} else {
                        		tmp = (x * (fma((y * y), 0.16666666666666666, 1.0) * y)) / y;
                        	}
                        	return tmp;
                        }
                        
                        function code(x, y)
                        	tmp = 0.0
                        	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 5e-58)
                        		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
                        	else
                        		tmp = Float64(Float64(x * Float64(fma(Float64(y * y), 0.16666666666666666, 1.0) * y)) / y);
                        	end
                        	return tmp
                        end
                        
                        code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 5e-58], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(N[(x * N[(N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
                        
                        \begin{array}{l}
                        
                        \\
                        \begin{array}{l}
                        \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-58}:\\
                        \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
                        
                        \mathbf{else}:\\
                        \;\;\;\;\frac{x \cdot \left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y\right)}{y}\\
                        
                        
                        \end{array}
                        \end{array}
                        
                        Derivation
                        1. Split input into 2 regimes
                        2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 4.99999999999999977e-58

                          1. Initial program 100.0%

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

                            \[\leadsto \sin x \cdot \color{blue}{1} \]
                          3. Step-by-step derivation
                            1. Applied rewrites50.5%

                              \[\leadsto \sin x \cdot \color{blue}{1} \]
                            2. Taylor expanded in x around 0

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

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

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

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

                                \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                              5. lower-fma.f64N/A

                                \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              6. lower--.f64N/A

                                \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              7. *-commutativeN/A

                                \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              8. lower-*.f64N/A

                                \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              9. pow2N/A

                                \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              10. lift-*.f64N/A

                                \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                              11. pow2N/A

                                \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                              12. lift-*.f6435.2

                                \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                            4. Applied rewrites35.2%

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

                              \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                            6. Step-by-step derivation
                              1. Applied rewrites33.9%

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

                              if 4.99999999999999977e-58 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                              1. Initial program 100.0%

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

                                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                              3. Step-by-step derivation
                                1. Applied rewrites62.8%

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

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

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

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

                                    \[\leadsto x \cdot \frac{\left(1 + {y}^{2} \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                  4. pow2N/A

                                    \[\leadsto x \cdot \frac{\left(1 + \left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                  5. +-commutativeN/A

                                    \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot \frac{1}{6} + 1\right) \cdot y}{y} \]
                                  6. lift-fma.f64N/A

                                    \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y}{y} \]
                                  7. lift-*.f6452.0

                                    \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \]
                                4. Applied rewrites52.0%

                                  \[\leadsto x \cdot \frac{\color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}}{y} \]
                                5. Step-by-step derivation
                                  1. lift-*.f64N/A

                                    \[\leadsto \color{blue}{x \cdot \frac{\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y}{y}} \]
                                  2. lift-/.f64N/A

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

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

                                    \[\leadsto \color{blue}{\frac{x \cdot \left(\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y\right)}{y}} \]
                                  5. lower-*.f6441.7

                                    \[\leadsto \frac{\color{blue}{x \cdot \left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y\right)}}{y} \]
                                6. Applied rewrites41.7%

                                  \[\leadsto \color{blue}{\frac{x \cdot \left(\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y\right)}{y}} \]
                              4. Recombined 2 regimes into one program.
                              5. Add Preprocessing

                              Alternative 9: 42.7% accurate, 0.7× speedup?

                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-12}:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \left(\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y\right)}{y}\\ \end{array} \end{array} \]
                              (FPCore (x y)
                               :precision binary64
                               (if (<= (* (sin x) (/ (sinh y) y)) 5e-12)
                                 (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                                 (/ (* x (* (* (* y y) 0.16666666666666666) y)) y)))
                              double code(double x, double y) {
                              	double tmp;
                              	if ((sin(x) * (sinh(y) / y)) <= 5e-12) {
                              		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
                              	} else {
                              		tmp = (x * (((y * y) * 0.16666666666666666) * y)) / y;
                              	}
                              	return tmp;
                              }
                              
                              function code(x, y)
                              	tmp = 0.0
                              	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 5e-12)
                              		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
                              	else
                              		tmp = Float64(Float64(x * Float64(Float64(Float64(y * y) * 0.16666666666666666) * y)) / y);
                              	end
                              	return tmp
                              end
                              
                              code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 5e-12], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(N[(x * N[(N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]
                              
                              \begin{array}{l}
                              
                              \\
                              \begin{array}{l}
                              \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-12}:\\
                              \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
                              
                              \mathbf{else}:\\
                              \;\;\;\;\frac{x \cdot \left(\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y\right)}{y}\\
                              
                              
                              \end{array}
                              \end{array}
                              
                              Derivation
                              1. Split input into 2 regimes
                              2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 4.9999999999999997e-12

                                1. Initial program 100.0%

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

                                  \[\leadsto \sin x \cdot \color{blue}{1} \]
                                3. Step-by-step derivation
                                  1. Applied rewrites50.5%

                                    \[\leadsto \sin x \cdot \color{blue}{1} \]
                                  2. Taylor expanded in x around 0

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

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

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

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

                                      \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                    5. lower-fma.f64N/A

                                      \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    6. lower--.f64N/A

                                      \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    7. *-commutativeN/A

                                      \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    8. lower-*.f64N/A

                                      \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    9. pow2N/A

                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    10. lift-*.f64N/A

                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                    11. pow2N/A

                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                    12. lift-*.f6435.2

                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                  4. Applied rewrites35.2%

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

                                    \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                  6. Step-by-step derivation
                                    1. Applied rewrites33.9%

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

                                    if 4.9999999999999997e-12 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                    1. Initial program 100.0%

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

                                      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                    3. Step-by-step derivation
                                      1. Applied rewrites62.8%

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

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

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

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

                                          \[\leadsto x \cdot \frac{\left(1 + {y}^{2} \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                        4. pow2N/A

                                          \[\leadsto x \cdot \frac{\left(1 + \left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                        5. +-commutativeN/A

                                          \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot \frac{1}{6} + 1\right) \cdot y}{y} \]
                                        6. lift-fma.f64N/A

                                          \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y}{y} \]
                                        7. lift-*.f6452.0

                                          \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \]
                                      4. Applied rewrites52.0%

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

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

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

                                          \[\leadsto x \cdot \frac{\left({y}^{2} \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                        3. pow2N/A

                                          \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                        4. lift-*.f6429.3

                                          \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y}{y} \]
                                      7. Applied rewrites29.3%

                                        \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y}{y} \]
                                      8. Step-by-step derivation
                                        1. lift-*.f64N/A

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

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

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

                                          \[\leadsto \color{blue}{\frac{x \cdot \left(\left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y\right)}{y}} \]
                                        5. lower-*.f6430.0

                                          \[\leadsto \frac{\color{blue}{x \cdot \left(\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y\right)}}{y} \]
                                      9. Applied rewrites30.0%

                                        \[\leadsto \color{blue}{\frac{x \cdot \left(\left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \cdot y\right)}{y}} \]
                                    4. Recombined 2 regimes into one program.
                                    5. Add Preprocessing

                                    Alternative 10: 42.6% accurate, 0.7× speedup?

                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-12}:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y}\\ \end{array} \end{array} \]
                                    (FPCore (x y)
                                     :precision binary64
                                     (if (<= (* (sin x) (/ (sinh y) y)) 5e-12)
                                       (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                                       (* x (/ (* (* (* y y) y) 0.16666666666666666) y))))
                                    double code(double x, double y) {
                                    	double tmp;
                                    	if ((sin(x) * (sinh(y) / y)) <= 5e-12) {
                                    		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
                                    	} else {
                                    		tmp = x * ((((y * y) * y) * 0.16666666666666666) / y);
                                    	}
                                    	return tmp;
                                    }
                                    
                                    function code(x, y)
                                    	tmp = 0.0
                                    	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 5e-12)
                                    		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
                                    	else
                                    		tmp = Float64(x * Float64(Float64(Float64(Float64(y * y) * y) * 0.16666666666666666) / y));
                                    	end
                                    	return tmp
                                    end
                                    
                                    code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 5e-12], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(x * N[(N[(N[(N[(y * y), $MachinePrecision] * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]
                                    
                                    \begin{array}{l}
                                    
                                    \\
                                    \begin{array}{l}
                                    \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 5 \cdot 10^{-12}:\\
                                    \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
                                    
                                    \mathbf{else}:\\
                                    \;\;\;\;x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y}\\
                                    
                                    
                                    \end{array}
                                    \end{array}
                                    
                                    Derivation
                                    1. Split input into 2 regimes
                                    2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 4.9999999999999997e-12

                                      1. Initial program 100.0%

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

                                        \[\leadsto \sin x \cdot \color{blue}{1} \]
                                      3. Step-by-step derivation
                                        1. Applied rewrites50.5%

                                          \[\leadsto \sin x \cdot \color{blue}{1} \]
                                        2. Taylor expanded in x around 0

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

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

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

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

                                            \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                          5. lower-fma.f64N/A

                                            \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          6. lower--.f64N/A

                                            \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          7. *-commutativeN/A

                                            \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          8. lower-*.f64N/A

                                            \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          9. pow2N/A

                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          10. lift-*.f64N/A

                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                          11. pow2N/A

                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                          12. lift-*.f6435.2

                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                        4. Applied rewrites35.2%

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

                                          \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                        6. Step-by-step derivation
                                          1. Applied rewrites33.9%

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

                                          if 4.9999999999999997e-12 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                          1. Initial program 100.0%

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

                                            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                          3. Step-by-step derivation
                                            1. Applied rewrites62.8%

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

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

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

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

                                                \[\leadsto x \cdot \frac{\left(1 + {y}^{2} \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                              4. pow2N/A

                                                \[\leadsto x \cdot \frac{\left(1 + \left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y}{y} \]
                                              5. +-commutativeN/A

                                                \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot \frac{1}{6} + 1\right) \cdot y}{y} \]
                                              6. lift-fma.f64N/A

                                                \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y}{y} \]
                                              7. lift-*.f6452.0

                                                \[\leadsto x \cdot \frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \]
                                            4. Applied rewrites52.0%

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

                                              \[\leadsto x \cdot \frac{\frac{1}{6} \cdot \color{blue}{{y}^{3}}}{y} \]
                                            6. Step-by-step derivation
                                              1. *-commutativeN/A

                                                \[\leadsto x \cdot \frac{{y}^{3} \cdot \frac{1}{6}}{y} \]
                                              2. lower-*.f64N/A

                                                \[\leadsto x \cdot \frac{{y}^{3} \cdot \frac{1}{6}}{y} \]
                                              3. unpow3N/A

                                                \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot \frac{1}{6}}{y} \]
                                              4. pow2N/A

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

                                                \[\leadsto x \cdot \frac{\left({y}^{2} \cdot y\right) \cdot \frac{1}{6}}{y} \]
                                              6. pow2N/A

                                                \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot \frac{1}{6}}{y} \]
                                              7. lift-*.f6429.4

                                                \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y} \]
                                            7. Applied rewrites29.4%

                                              \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot \color{blue}{0.16666666666666666}}{y} \]
                                          4. Recombined 2 regimes into one program.
                                          5. Add Preprocessing

                                          Alternative 11: 42.4% accurate, 0.7× speedup?

                                          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.005:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\ \end{array} \end{array} \]
                                          (FPCore (x y)
                                           :precision binary64
                                           (if (<= (* (sin x) (/ (sinh y) y)) -0.005)
                                             (* (* (fma -0.16666666666666666 (* x x) 1.0) x) 1.0)
                                             (* (* 1.0 x) (fma (* y y) 0.16666666666666666 1.0))))
                                          double code(double x, double y) {
                                          	double tmp;
                                          	if ((sin(x) * (sinh(y) / y)) <= -0.005) {
                                          		tmp = (fma(-0.16666666666666666, (x * x), 1.0) * x) * 1.0;
                                          	} else {
                                          		tmp = (1.0 * x) * fma((y * y), 0.16666666666666666, 1.0);
                                          	}
                                          	return tmp;
                                          }
                                          
                                          function code(x, y)
                                          	tmp = 0.0
                                          	if (Float64(sin(x) * Float64(sinh(y) / y)) <= -0.005)
                                          		tmp = Float64(Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x) * 1.0);
                                          	else
                                          		tmp = Float64(Float64(1.0 * x) * fma(Float64(y * y), 0.16666666666666666, 1.0));
                                          	end
                                          	return tmp
                                          end
                                          
                                          code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], -0.005], N[(N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision] * 1.0), $MachinePrecision], N[(N[(1.0 * x), $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision]), $MachinePrecision]]
                                          
                                          \begin{array}{l}
                                          
                                          \\
                                          \begin{array}{l}
                                          \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.005:\\
                                          \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1\\
                                          
                                          \mathbf{else}:\\
                                          \;\;\;\;\left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\
                                          
                                          
                                          \end{array}
                                          \end{array}
                                          
                                          Derivation
                                          1. Split input into 2 regimes
                                          2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.0050000000000000001

                                            1. Initial program 100.0%

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

                                              \[\leadsto \sin x \cdot \color{blue}{1} \]
                                            3. Step-by-step derivation
                                              1. Applied rewrites50.5%

                                                \[\leadsto \sin x \cdot \color{blue}{1} \]
                                              2. Taylor expanded in x around 0

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

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

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

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

                                                  \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                                5. lower-fma.f64N/A

                                                  \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                6. lower--.f64N/A

                                                  \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                7. *-commutativeN/A

                                                  \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                8. lower-*.f64N/A

                                                  \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                9. pow2N/A

                                                  \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                10. lift-*.f64N/A

                                                  \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                11. pow2N/A

                                                  \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                12. lift-*.f6435.2

                                                  \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                              4. Applied rewrites35.2%

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

                                                \[\leadsto \left(\mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                              6. Step-by-step derivation
                                                1. Applied rewrites33.9%

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

                                                if -0.0050000000000000001 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                1. Initial program 100.0%

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

                                                  \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                3. Step-by-step derivation
                                                  1. Applied rewrites50.5%

                                                    \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                  2. Taylor expanded in x around 0

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

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

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

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

                                                      \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                                    5. lower-fma.f64N/A

                                                      \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    6. lower--.f64N/A

                                                      \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    7. *-commutativeN/A

                                                      \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    8. lower-*.f64N/A

                                                      \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    9. pow2N/A

                                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    10. lift-*.f64N/A

                                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                    11. pow2N/A

                                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                    12. lift-*.f6435.2

                                                      \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                  4. Applied rewrites35.2%

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

                                                    \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                  6. Step-by-step derivation
                                                    1. Applied rewrites26.1%

                                                      \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                    2. Taylor expanded in y around 0

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

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

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

                                                        \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left({y}^{2}, \color{blue}{\frac{1}{6}}, 1\right) \]
                                                      4. pow2N/A

                                                        \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \]
                                                      5. lift-*.f6447.4

                                                        \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \]
                                                    4. Applied rewrites47.4%

                                                      \[\leadsto \left(1 \cdot x\right) \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                                  7. Recombined 2 regimes into one program.
                                                  8. Add Preprocessing

                                                  Alternative 12: 40.6% accurate, 3.5× speedup?

                                                  \[\begin{array}{l} \\ \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \end{array} \]
                                                  (FPCore (x y)
                                                   :precision binary64
                                                   (* (* 1.0 x) (fma (* y y) 0.16666666666666666 1.0)))
                                                  double code(double x, double y) {
                                                  	return (1.0 * x) * fma((y * y), 0.16666666666666666, 1.0);
                                                  }
                                                  
                                                  function code(x, y)
                                                  	return Float64(Float64(1.0 * x) * fma(Float64(y * y), 0.16666666666666666, 1.0))
                                                  end
                                                  
                                                  code[x_, y_] := N[(N[(1.0 * x), $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision]), $MachinePrecision]
                                                  
                                                  \begin{array}{l}
                                                  
                                                  \\
                                                  \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)
                                                  \end{array}
                                                  
                                                  Derivation
                                                  1. Initial program 100.0%

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

                                                    \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                  3. Step-by-step derivation
                                                    1. Applied rewrites50.5%

                                                      \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                    2. Taylor expanded in x around 0

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

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

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

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

                                                        \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                                      5. lower-fma.f64N/A

                                                        \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      6. lower--.f64N/A

                                                        \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      7. *-commutativeN/A

                                                        \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      8. lower-*.f64N/A

                                                        \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      9. pow2N/A

                                                        \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      10. lift-*.f64N/A

                                                        \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                      11. pow2N/A

                                                        \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                      12. lift-*.f6435.2

                                                        \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                    4. Applied rewrites35.2%

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

                                                      \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                    6. Step-by-step derivation
                                                      1. Applied rewrites26.1%

                                                        \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                      2. Taylor expanded in y around 0

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

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

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

                                                          \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left({y}^{2}, \color{blue}{\frac{1}{6}}, 1\right) \]
                                                        4. pow2N/A

                                                          \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \]
                                                        5. lift-*.f6447.4

                                                          \[\leadsto \left(1 \cdot x\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \]
                                                      4. Applied rewrites47.4%

                                                        \[\leadsto \left(1 \cdot x\right) \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                                      5. Add Preprocessing

                                                      Alternative 13: 26.1% accurate, 7.4× speedup?

                                                      \[\begin{array}{l} \\ \left(1 \cdot x\right) \cdot 1 \end{array} \]
                                                      (FPCore (x y) :precision binary64 (* (* 1.0 x) 1.0))
                                                      double code(double x, double y) {
                                                      	return (1.0 * x) * 1.0;
                                                      }
                                                      
                                                      module fmin_fmax_functions
                                                          implicit none
                                                          private
                                                          public fmax
                                                          public fmin
                                                      
                                                          interface fmax
                                                              module procedure fmax88
                                                              module procedure fmax44
                                                              module procedure fmax84
                                                              module procedure fmax48
                                                          end interface
                                                          interface fmin
                                                              module procedure fmin88
                                                              module procedure fmin44
                                                              module procedure fmin84
                                                              module procedure fmin48
                                                          end interface
                                                      contains
                                                          real(8) function fmax88(x, y) result (res)
                                                              real(8), intent (in) :: x
                                                              real(8), intent (in) :: y
                                                              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                          end function
                                                          real(4) function fmax44(x, y) result (res)
                                                              real(4), intent (in) :: x
                                                              real(4), intent (in) :: y
                                                              res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                          end function
                                                          real(8) function fmax84(x, y) result(res)
                                                              real(8), intent (in) :: x
                                                              real(4), intent (in) :: y
                                                              res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
                                                          end function
                                                          real(8) function fmax48(x, y) result(res)
                                                              real(4), intent (in) :: x
                                                              real(8), intent (in) :: y
                                                              res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
                                                          end function
                                                          real(8) function fmin88(x, y) result (res)
                                                              real(8), intent (in) :: x
                                                              real(8), intent (in) :: y
                                                              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                          end function
                                                          real(4) function fmin44(x, y) result (res)
                                                              real(4), intent (in) :: x
                                                              real(4), intent (in) :: y
                                                              res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                          end function
                                                          real(8) function fmin84(x, y) result(res)
                                                              real(8), intent (in) :: x
                                                              real(4), intent (in) :: y
                                                              res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
                                                          end function
                                                          real(8) function fmin48(x, y) result(res)
                                                              real(4), intent (in) :: x
                                                              real(8), intent (in) :: y
                                                              res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
                                                          end function
                                                      end module
                                                      
                                                      real(8) function code(x, y)
                                                      use fmin_fmax_functions
                                                          real(8), intent (in) :: x
                                                          real(8), intent (in) :: y
                                                          code = (1.0d0 * x) * 1.0d0
                                                      end function
                                                      
                                                      public static double code(double x, double y) {
                                                      	return (1.0 * x) * 1.0;
                                                      }
                                                      
                                                      def code(x, y):
                                                      	return (1.0 * x) * 1.0
                                                      
                                                      function code(x, y)
                                                      	return Float64(Float64(1.0 * x) * 1.0)
                                                      end
                                                      
                                                      function tmp = code(x, y)
                                                      	tmp = (1.0 * x) * 1.0;
                                                      end
                                                      
                                                      code[x_, y_] := N[(N[(1.0 * x), $MachinePrecision] * 1.0), $MachinePrecision]
                                                      
                                                      \begin{array}{l}
                                                      
                                                      \\
                                                      \left(1 \cdot x\right) \cdot 1
                                                      \end{array}
                                                      
                                                      Derivation
                                                      1. Initial program 100.0%

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

                                                        \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                      3. Step-by-step derivation
                                                        1. Applied rewrites50.5%

                                                          \[\leadsto \sin x \cdot \color{blue}{1} \]
                                                        2. Taylor expanded in x around 0

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

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

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

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

                                                            \[\leadsto \left(\left(\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}\right) \cdot {x}^{2} + 1\right) \cdot x\right) \cdot 1 \]
                                                          5. lower-fma.f64N/A

                                                            \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          6. lower--.f64N/A

                                                            \[\leadsto \left(\mathsf{fma}\left(\frac{1}{120} \cdot {x}^{2} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          7. *-commutativeN/A

                                                            \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          8. lower-*.f64N/A

                                                            \[\leadsto \left(\mathsf{fma}\left({x}^{2} \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          9. pow2N/A

                                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          10. lift-*.f64N/A

                                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, {x}^{2}, 1\right) \cdot x\right) \cdot 1 \]
                                                          11. pow2N/A

                                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot \frac{1}{120} - \frac{1}{6}, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                          12. lift-*.f6435.2

                                                            \[\leadsto \left(\mathsf{fma}\left(\left(x \cdot x\right) \cdot 0.008333333333333333 - 0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot 1 \]
                                                        4. Applied rewrites35.2%

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

                                                          \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                        6. Step-by-step derivation
                                                          1. Applied rewrites26.1%

                                                            \[\leadsto \left(1 \cdot x\right) \cdot 1 \]
                                                          2. Add Preprocessing

                                                          Reproduce

                                                          ?
                                                          herbie shell --seed 2025131 
                                                          (FPCore (x y)
                                                            :name "Linear.Quaternion:$ccos from linear-1.19.1.3"
                                                            :precision binary64
                                                            (* (sin x) (/ (sinh y) y)))