Linear.Quaternion:$ccos from linear-1.19.1.3

Percentage Accurate: 100.0% → 100.0%
Time: 3.5s
Alternatives: 15
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 15 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: 74.4% accurate, 0.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot t\_0\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
(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(Float64(x * x) * 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[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $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(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\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-*.f6475.0

        \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
    4. Applied rewrites75.0%

      \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
    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-*.f6425.2

        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
    7. Applied rewrites25.2%

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

    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-*.f6498.9

        \[\leadsto \sin x \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \]
    4. Applied rewrites98.9%

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

    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 rewrites73.1%

        \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
      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.f6473.1

          \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
      3. Applied rewrites73.1%

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

    Alternative 3: 74.1% accurate, 0.4× speedup?

    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot t\_0\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
    (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) (/ (* 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);
    	} 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);
    	} 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)
    	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(Float64(x * x) * x) * -0.16666666666666666) * t_0);
    	elseif (t_1 <= 1.0)
    		tmp = sin(x);
    	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);
    	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[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * t$95$0), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[Sin[x], $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(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot t\_0\\
    
    \mathbf{elif}\;t\_1 \leq 1:\\
    \;\;\;\;\sin x\\
    
    \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-*.f6475.0

          \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
      4. Applied rewrites75.0%

        \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
      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-*.f6425.2

          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
      7. Applied rewrites25.2%

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

      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

        \[\leadsto \color{blue}{\sin x} \]
      3. Step-by-step derivation
        1. lift-sin.f6498.2

          \[\leadsto \sin x \]
      4. Applied rewrites98.2%

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

      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 rewrites73.1%

          \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
        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.f6473.1

            \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
        3. Applied rewrites73.1%

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

      Alternative 4: 62.8% accurate, 0.6× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq 0.02:\\ \;\;\;\;\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot t\_0\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
      (FPCore (x y)
       :precision binary64
       (let* ((t_0 (/ (sinh y) y)))
         (if (<= (* (sin x) t_0) 0.02)
           (* (* (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) <= 0.02) {
      		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) <= 0.02)
      		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], 0.02], 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 0.02:\\
      \;\;\;\;\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)) < 0.0200000000000000004

        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-*.f6470.9

            \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
        4. Applied rewrites70.9%

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

        if 0.0200000000000000004 < (*.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 rewrites49.0%

            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
          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.f6449.0

              \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
          3. Applied rewrites49.0%

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

        Alternative 5: 50.3% accurate, 0.6× speedup?

        \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq -0.01:\\ \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot t\_0\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
        (FPCore (x y)
         :precision binary64
         (let* ((t_0 (/ (sinh y) y)))
           (if (<= (* (sin x) t_0) -0.01)
             (* (* (* (* 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) <= -0.01) {
        		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) <= (-0.01d0)) 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) <= -0.01) {
        		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) <= -0.01:
        		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) <= -0.01)
        		tmp = Float64(Float64(Float64(Float64(x * x) * 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) <= -0.01)
        		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], -0.01], N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $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 -0.01:\\
        \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\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)) < -0.0100000000000000002

          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-*.f6451.1

              \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
          4. Applied rewrites51.1%

            \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
          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-*.f6417.6

              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
          7. Applied rewrites17.6%

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

          if -0.0100000000000000002 < (*.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 rewrites69.5%

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

          Alternative 6: 49.8% accurate, 0.6× speedup?

          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(\left(\left(\mathsf{fma}\left(-0.0001984126984126984, x \cdot x, 0.008333333333333333\right) \cdot x\right) \cdot x - 0.16666666666666666\right) \cdot x, x, 1\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
          (FPCore (x y)
           :precision binary64
           (if (<= (* (sin x) (/ (sinh y) y)) 0.02)
             (*
              (fma
               (*
                (-
                 (* (* (fma -0.0001984126984126984 (* x x) 0.008333333333333333) x) x)
                 0.16666666666666666)
                x)
               x
               1.0)
              x)
             (/ (* x (sinh y)) y)))
          double code(double x, double y) {
          	double tmp;
          	if ((sin(x) * (sinh(y) / y)) <= 0.02) {
          		tmp = fma(((((fma(-0.0001984126984126984, (x * x), 0.008333333333333333) * x) * x) - 0.16666666666666666) * x), x, 1.0) * x;
          	} else {
          		tmp = (x * sinh(y)) / y;
          	}
          	return tmp;
          }
          
          function code(x, y)
          	tmp = 0.0
          	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 0.02)
          		tmp = Float64(fma(Float64(Float64(Float64(Float64(fma(-0.0001984126984126984, Float64(x * x), 0.008333333333333333) * x) * x) - 0.16666666666666666) * x), x, 1.0) * x);
          	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], 0.02], N[(N[(N[(N[(N[(N[(N[(-0.0001984126984126984 * N[(x * x), $MachinePrecision] + 0.008333333333333333), $MachinePrecision] * x), $MachinePrecision] * x), $MachinePrecision] - 0.16666666666666666), $MachinePrecision] * x), $MachinePrecision] * x + 1.0), $MachinePrecision] * x), $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 0.02:\\
          \;\;\;\;\mathsf{fma}\left(\left(\left(\mathsf{fma}\left(-0.0001984126984126984, x \cdot x, 0.008333333333333333\right) \cdot x\right) \cdot x - 0.16666666666666666\right) \cdot x, x, 1\right) \cdot x\\
          
          \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)) < 0.0200000000000000004

            1. Initial program 100.0%

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

              \[\leadsto \color{blue}{\sin x} \]
            3. Step-by-step derivation
              1. lift-sin.f6460.6

                \[\leadsto \sin x \]
            4. Applied rewrites60.6%

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

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

                \[\leadsto \left(1 + {x}^{2} \cdot \left({x}^{2} \cdot \left(\frac{1}{120} + \frac{-1}{5040} \cdot {x}^{2}\right) - \frac{1}{6}\right)\right) \cdot x \]
              2. lower-*.f64N/A

                \[\leadsto \left(1 + {x}^{2} \cdot \left({x}^{2} \cdot \left(\frac{1}{120} + \frac{-1}{5040} \cdot {x}^{2}\right) - \frac{1}{6}\right)\right) \cdot x \]
            7. Applied rewrites49.6%

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

            if 0.0200000000000000004 < (*.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 rewrites49.0%

                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
              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.f6449.0

                  \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
              3. Applied rewrites49.0%

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

            Alternative 7: 49.4% accurate, 0.4× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} t_0 := \sin x \cdot \frac{\sinh y}{y}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\ \mathbf{elif}\;t\_0 \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;\frac{x \cdot \sinh y}{y}\\ \end{array} \end{array} \]
            (FPCore (x y)
             :precision binary64
             (let* ((t_0 (* (sin x) (/ (sinh y) y))))
               (if (<= t_0 (- INFINITY))
                 (/ (* (* (* (* x x) x) -0.16666666666666666) y) y)
                 (if (<= t_0 0.02)
                   (* (fma -0.16666666666666666 (* x x) 1.0) x)
                   (/ (* x (sinh y)) y)))))
            double code(double x, double y) {
            	double t_0 = sin(x) * (sinh(y) / y);
            	double tmp;
            	if (t_0 <= -((double) INFINITY)) {
            		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
            	} else if (t_0 <= 0.02) {
            		tmp = fma(-0.16666666666666666, (x * x), 1.0) * x;
            	} else {
            		tmp = (x * sinh(y)) / y;
            	}
            	return tmp;
            }
            
            function code(x, y)
            	t_0 = Float64(sin(x) * Float64(sinh(y) / y))
            	tmp = 0.0
            	if (t_0 <= Float64(-Inf))
            		tmp = Float64(Float64(Float64(Float64(Float64(x * x) * x) * -0.16666666666666666) * y) / y);
            	elseif (t_0 <= 0.02)
            		tmp = Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x);
            	else
            		tmp = Float64(Float64(x * sinh(y)) / y);
            	end
            	return tmp
            end
            
            code[x_, y_] := Block[{t$95$0 = N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[t$95$0, 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision], N[(N[(x * N[Sinh[y], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            t_0 := \sin x \cdot \frac{\sinh y}{y}\\
            \mathbf{if}\;t\_0 \leq -\infty:\\
            \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\
            
            \mathbf{elif}\;t\_0 \leq 0.02:\\
            \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\
            
            \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-*.f6475.0

                  \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
              4. Applied rewrites75.0%

                \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
              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-*.f6425.2

                  \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
              7. Applied rewrites25.2%

                \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
              8. Taylor expanded in y around 0

                \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\color{blue}{y}}{y} \]
              9. Step-by-step derivation
                1. Applied rewrites17.0%

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

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

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

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

                    \[\leadsto \color{blue}{\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot y}{y}} \]
                  5. lower-*.f6421.2

                    \[\leadsto \frac{\color{blue}{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}}{y} \]
                3. Applied rewrites21.2%

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

                if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.0200000000000000004

                1. Initial program 100.0%

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

                  \[\leadsto \color{blue}{\sin x} \]
                3. Step-by-step derivation
                  1. lift-sin.f6498.1

                    \[\leadsto \sin x \]
                4. Applied rewrites98.1%

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

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

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

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

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

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

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

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

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

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

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

                    \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                  11. lift-*.f6467.1

                    \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                7. Applied rewrites67.1%

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

                  \[\leadsto \mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x \]
                9. Step-by-step derivation
                  1. Applied rewrites67.0%

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

                  if 0.0200000000000000004 < (*.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 rewrites49.0%

                      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                    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.f6449.0

                        \[\leadsto \frac{x \cdot \color{blue}{\sinh y}}{y} \]
                    3. Applied rewrites49.0%

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

                  Alternative 8: 49.4% accurate, 0.7× speedup?

                  \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq -0.01:\\ \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
                  (FPCore (x y)
                   :precision binary64
                   (let* ((t_0 (/ (sinh y) y)))
                     (if (<= (* (sin x) t_0) -0.01)
                       (*
                        (* (* (* x x) x) -0.16666666666666666)
                        (fma (* y y) 0.16666666666666666 1.0))
                       (* x t_0))))
                  double code(double x, double y) {
                  	double t_0 = sinh(y) / y;
                  	double tmp;
                  	if ((sin(x) * t_0) <= -0.01) {
                  		tmp = (((x * x) * x) * -0.16666666666666666) * fma((y * y), 0.16666666666666666, 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) <= -0.01)
                  		tmp = Float64(Float64(Float64(Float64(x * x) * x) * -0.16666666666666666) * fma(Float64(y * y), 0.16666666666666666, 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], -0.01], N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision]), $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 -0.01:\\
                  \;\;\;\;\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)\\
                  
                  \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)) < -0.0100000000000000002

                    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-*.f6451.1

                        \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
                    4. Applied rewrites51.1%

                      \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
                    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-*.f6417.6

                        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
                    7. Applied rewrites17.6%

                      \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
                    8. Taylor expanded in y around 0

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

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

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

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

                        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \]
                      5. lift-*.f6416.1

                        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \]
                    10. Applied rewrites16.1%

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

                    if -0.0100000000000000002 < (*.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 rewrites69.5%

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

                    Alternative 9: 49.0% accurate, 0.7× speedup?

                    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq -0.01:\\ \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
                    (FPCore (x y)
                     :precision binary64
                     (let* ((t_0 (/ (sinh y) y)))
                       (if (<= (* (sin x) t_0) -0.01)
                         (/ (* (* (* (* x x) x) -0.16666666666666666) y) y)
                         (* x t_0))))
                    double code(double x, double y) {
                    	double t_0 = sinh(y) / y;
                    	double tmp;
                    	if ((sin(x) * t_0) <= -0.01) {
                    		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
                    	} 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) <= (-0.01d0)) then
                            tmp = ((((x * x) * x) * (-0.16666666666666666d0)) * y) / y
                        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) <= -0.01) {
                    		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
                    	} 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) <= -0.01:
                    		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y
                    	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) <= -0.01)
                    		tmp = Float64(Float64(Float64(Float64(Float64(x * x) * x) * -0.16666666666666666) * y) / y);
                    	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) <= -0.01)
                    		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
                    	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], -0.01], N[(N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * y), $MachinePrecision] / y), $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 -0.01:\\
                    \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\
                    
                    \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)) < -0.0100000000000000002

                      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-*.f6451.1

                          \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
                      4. Applied rewrites51.1%

                        \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
                      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-*.f6417.6

                          \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
                      7. Applied rewrites17.6%

                        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
                      8. Taylor expanded in y around 0

                        \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\color{blue}{y}}{y} \]
                      9. Step-by-step derivation
                        1. Applied rewrites12.1%

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

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

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

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

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

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

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

                        if -0.0100000000000000002 < (*.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 rewrites69.5%

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

                        Alternative 10: 44.1% accurate, 0.4× speedup?

                        \[\begin{array}{l} \\ \begin{array}{l} t_0 := \sin x \cdot \frac{\sinh y}{y}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\ \mathbf{elif}\;t\_0 \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y}\\ \end{array} \end{array} \]
                        (FPCore (x y)
                         :precision binary64
                         (let* ((t_0 (* (sin x) (/ (sinh y) y))))
                           (if (<= t_0 (- INFINITY))
                             (/ (* (* (* (* x x) x) -0.16666666666666666) y) y)
                             (if (<= t_0 0.02)
                               (* (fma -0.16666666666666666 (* x x) 1.0) x)
                               (* x (/ (* (* (* y y) y) 0.16666666666666666) y))))))
                        double code(double x, double y) {
                        	double t_0 = sin(x) * (sinh(y) / y);
                        	double tmp;
                        	if (t_0 <= -((double) INFINITY)) {
                        		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
                        	} else if (t_0 <= 0.02) {
                        		tmp = fma(-0.16666666666666666, (x * x), 1.0) * x;
                        	} else {
                        		tmp = x * ((((y * y) * y) * 0.16666666666666666) / y);
                        	}
                        	return tmp;
                        }
                        
                        function code(x, y)
                        	t_0 = Float64(sin(x) * Float64(sinh(y) / y))
                        	tmp = 0.0
                        	if (t_0 <= Float64(-Inf))
                        		tmp = Float64(Float64(Float64(Float64(Float64(x * x) * x) * -0.16666666666666666) * y) / y);
                        	elseif (t_0 <= 0.02)
                        		tmp = Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x);
                        	else
                        		tmp = Float64(x * Float64(Float64(Float64(Float64(y * y) * y) * 0.16666666666666666) / y));
                        	end
                        	return tmp
                        end
                        
                        code[x_, y_] := Block[{t$95$0 = N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[t$95$0, 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision], N[(x * N[(N[(N[(N[(y * y), $MachinePrecision] * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]]]]
                        
                        \begin{array}{l}
                        
                        \\
                        \begin{array}{l}
                        t_0 := \sin x \cdot \frac{\sinh y}{y}\\
                        \mathbf{if}\;t\_0 \leq -\infty:\\
                        \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\
                        
                        \mathbf{elif}\;t\_0 \leq 0.02:\\
                        \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\
                        
                        \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 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-*.f6475.0

                              \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
                          4. Applied rewrites75.0%

                            \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
                          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-*.f6425.2

                              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
                          7. Applied rewrites25.2%

                            \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
                          8. Taylor expanded in y around 0

                            \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\color{blue}{y}}{y} \]
                          9. Step-by-step derivation
                            1. Applied rewrites17.0%

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

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

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

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

                                \[\leadsto \color{blue}{\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot y}{y}} \]
                              5. lower-*.f6421.2

                                \[\leadsto \frac{\color{blue}{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}}{y} \]
                            3. Applied rewrites21.2%

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

                            if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.0200000000000000004

                            1. Initial program 100.0%

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

                              \[\leadsto \color{blue}{\sin x} \]
                            3. Step-by-step derivation
                              1. lift-sin.f6498.1

                                \[\leadsto \sin x \]
                            4. Applied rewrites98.1%

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

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

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

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

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

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

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

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

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

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

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

                                \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                              11. lift-*.f6467.1

                                \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                            7. Applied rewrites67.1%

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

                              \[\leadsto \mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x \]
                            9. Step-by-step derivation
                              1. Applied rewrites67.0%

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

                              if 0.0200000000000000004 < (*.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 rewrites49.0%

                                  \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                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. distribute-rgt-inN/A

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

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

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

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

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

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

                                    \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot \frac{1}{6}, y, y\right)}{y} \]
                                  8. lift-*.f6435.8

                                    \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}{y} \]
                                4. Applied rewrites35.8%

                                  \[\leadsto x \cdot \frac{\color{blue}{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}}{y} \]
                                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-*.f6435.8

                                    \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y} \]
                                7. Applied rewrites35.8%

                                  \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot \color{blue}{0.16666666666666666}}{y} \]
                              4. Recombined 3 regimes into one program.
                              5. Add Preprocessing

                              Alternative 11: 44.1% accurate, 0.7× speedup?

                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.01:\\ \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \cdot x\\ \end{array} \end{array} \]
                              (FPCore (x y)
                               :precision binary64
                               (if (<= (* (sin x) (/ (sinh y) y)) -0.01)
                                 (/ (* (* (* (* x x) x) -0.16666666666666666) y) y)
                                 (* (/ (* (fma (* y y) 0.16666666666666666 1.0) y) y) x)))
                              double code(double x, double y) {
                              	double tmp;
                              	if ((sin(x) * (sinh(y) / y)) <= -0.01) {
                              		tmp = ((((x * x) * x) * -0.16666666666666666) * y) / y;
                              	} else {
                              		tmp = ((fma((y * y), 0.16666666666666666, 1.0) * y) / y) * x;
                              	}
                              	return tmp;
                              }
                              
                              function code(x, y)
                              	tmp = 0.0
                              	if (Float64(sin(x) * Float64(sinh(y) / y)) <= -0.01)
                              		tmp = Float64(Float64(Float64(Float64(Float64(x * x) * x) * -0.16666666666666666) * y) / y);
                              	else
                              		tmp = Float64(Float64(Float64(fma(Float64(y * y), 0.16666666666666666, 1.0) * y) / y) * x);
                              	end
                              	return tmp
                              end
                              
                              code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], -0.01], N[(N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * -0.16666666666666666), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], N[(N[(N[(N[(N[(y * y), $MachinePrecision] * 0.16666666666666666 + 1.0), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision] * x), $MachinePrecision]]
                              
                              \begin{array}{l}
                              
                              \\
                              \begin{array}{l}
                              \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.01:\\
                              \;\;\;\;\frac{\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot y}{y}\\
                              
                              \mathbf{else}:\\
                              \;\;\;\;\frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \cdot x\\
                              
                              
                              \end{array}
                              \end{array}
                              
                              Derivation
                              1. Split input into 2 regimes
                              2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.0100000000000000002

                                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-*.f6451.1

                                    \[\leadsto \left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right) \cdot \frac{\sinh y}{y} \]
                                4. Applied rewrites51.1%

                                  \[\leadsto \color{blue}{\left(\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\right)} \cdot \frac{\sinh y}{y} \]
                                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-*.f6417.6

                                    \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot -0.16666666666666666\right) \cdot \frac{\sinh y}{y} \]
                                7. Applied rewrites17.6%

                                  \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \color{blue}{-0.16666666666666666}\right) \cdot \frac{\sinh y}{y} \]
                                8. Taylor expanded in y around 0

                                  \[\leadsto \left(\left(\left(x \cdot x\right) \cdot x\right) \cdot \frac{-1}{6}\right) \cdot \frac{\color{blue}{y}}{y} \]
                                9. Step-by-step derivation
                                  1. Applied rewrites12.1%

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

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

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

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

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

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

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

                                  if -0.0100000000000000002 < (*.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 rewrites69.5%

                                      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                    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. distribute-rgt-inN/A

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

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

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

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

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

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

                                        \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot \frac{1}{6}, y, y\right)}{y} \]
                                      8. lift-*.f6461.2

                                        \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}{y} \]
                                    4. Applied rewrites61.2%

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

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

                                        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot \frac{1}{6}, y, y\right)}{y} \cdot x} \]
                                      3. lower-*.f6461.2

                                        \[\leadsto \color{blue}{\frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}{y} \cdot x} \]
                                      4. lift-fma.f64N/A

                                        \[\leadsto \frac{\left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \cdot y + \color{blue}{y}}{y} \cdot x \]
                                      5. distribute-lft1-inN/A

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

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

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

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

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

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

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

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

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

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

                                        \[\leadsto \frac{\mathsf{fma}\left(y \cdot y, \frac{1}{6}, 1\right) \cdot y}{y} \cdot x \]
                                      16. lift-*.f6461.2

                                        \[\leadsto \frac{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right) \cdot y}{y} \cdot x \]
                                    6. Applied rewrites61.2%

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

                                  Alternative 12: 43.2% accurate, 0.7× speedup?

                                  \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y}\\ \end{array} \end{array} \]
                                  (FPCore (x y)
                                   :precision binary64
                                   (if (<= (* (sin x) (/ (sinh y) y)) 0.02)
                                     (* (fma -0.16666666666666666 (* x x) 1.0) x)
                                     (* x (/ (* (* (* y y) y) 0.16666666666666666) y))))
                                  double code(double x, double y) {
                                  	double tmp;
                                  	if ((sin(x) * (sinh(y) / y)) <= 0.02) {
                                  		tmp = fma(-0.16666666666666666, (x * x), 1.0) * x;
                                  	} 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)) <= 0.02)
                                  		tmp = Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x);
                                  	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], 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $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 0.02:\\
                                  \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\
                                  
                                  \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)) < 0.0200000000000000004

                                    1. Initial program 100.0%

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

                                      \[\leadsto \color{blue}{\sin x} \]
                                    3. Step-by-step derivation
                                      1. lift-sin.f6460.6

                                        \[\leadsto \sin x \]
                                    4. Applied rewrites60.6%

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

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

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

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

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

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

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

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

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

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

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

                                        \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                                      11. lift-*.f6449.1

                                        \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                                    7. Applied rewrites49.1%

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

                                      \[\leadsto \mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x \]
                                    9. Step-by-step derivation
                                      1. Applied rewrites47.5%

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

                                      if 0.0200000000000000004 < (*.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 rewrites49.0%

                                          \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                        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. distribute-rgt-inN/A

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

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

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

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

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

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

                                            \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot \frac{1}{6}, y, y\right)}{y} \]
                                          8. lift-*.f6435.8

                                            \[\leadsto x \cdot \frac{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}{y} \]
                                        4. Applied rewrites35.8%

                                          \[\leadsto x \cdot \frac{\color{blue}{\mathsf{fma}\left(\left(y \cdot y\right) \cdot 0.16666666666666666, y, y\right)}}{y} \]
                                        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-*.f6435.8

                                            \[\leadsto x \cdot \frac{\left(\left(y \cdot y\right) \cdot y\right) \cdot 0.16666666666666666}{y} \]
                                        7. Applied rewrites35.8%

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

                                      Alternative 13: 35.4% accurate, 1.0× speedup?

                                      \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\ \mathbf{else}:\\ \;\;\;\;\left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot 0.008333333333333333\right) \cdot x\\ \end{array} \end{array} \]
                                      (FPCore (x y)
                                       :precision binary64
                                       (if (<= (sin x) 0.02)
                                         (* (fma -0.16666666666666666 (* x x) 1.0) x)
                                         (* (* (* (* (* x x) x) x) 0.008333333333333333) x)))
                                      double code(double x, double y) {
                                      	double tmp;
                                      	if (sin(x) <= 0.02) {
                                      		tmp = fma(-0.16666666666666666, (x * x), 1.0) * x;
                                      	} else {
                                      		tmp = ((((x * x) * x) * x) * 0.008333333333333333) * x;
                                      	}
                                      	return tmp;
                                      }
                                      
                                      function code(x, y)
                                      	tmp = 0.0
                                      	if (sin(x) <= 0.02)
                                      		tmp = Float64(fma(-0.16666666666666666, Float64(x * x), 1.0) * x);
                                      	else
                                      		tmp = Float64(Float64(Float64(Float64(Float64(x * x) * x) * x) * 0.008333333333333333) * x);
                                      	end
                                      	return tmp
                                      end
                                      
                                      code[x_, y_] := If[LessEqual[N[Sin[x], $MachinePrecision], 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision] + 1.0), $MachinePrecision] * x), $MachinePrecision], N[(N[(N[(N[(N[(x * x), $MachinePrecision] * x), $MachinePrecision] * x), $MachinePrecision] * 0.008333333333333333), $MachinePrecision] * x), $MachinePrecision]]
                                      
                                      \begin{array}{l}
                                      
                                      \\
                                      \begin{array}{l}
                                      \mathbf{if}\;\sin x \leq 0.02:\\
                                      \;\;\;\;\mathsf{fma}\left(-0.16666666666666666, x \cdot x, 1\right) \cdot x\\
                                      
                                      \mathbf{else}:\\
                                      \;\;\;\;\left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot 0.008333333333333333\right) \cdot x\\
                                      
                                      
                                      \end{array}
                                      \end{array}
                                      
                                      Derivation
                                      1. Split input into 2 regimes
                                      2. if (sin.f64 x) < 0.0200000000000000004

                                        1. Initial program 100.0%

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

                                          \[\leadsto \color{blue}{\sin x} \]
                                        3. Step-by-step derivation
                                          1. lift-sin.f6451.3

                                            \[\leadsto \sin x \]
                                        4. Applied rewrites51.3%

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

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

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

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

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

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

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

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

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

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

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

                                            \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                                          11. lift-*.f6441.7

                                            \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                                        7. Applied rewrites41.7%

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

                                          \[\leadsto \mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x \]
                                        9. Step-by-step derivation
                                          1. Applied rewrites40.4%

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

                                          if 0.0200000000000000004 < (sin.f64 x)

                                          1. Initial program 100.0%

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

                                            \[\leadsto \color{blue}{\sin x} \]
                                          3. Step-by-step derivation
                                            1. lift-sin.f6451.8

                                              \[\leadsto \sin x \]
                                          4. Applied rewrites51.8%

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

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

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

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

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

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

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

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

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

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

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

                                              \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                                            11. lift-*.f6420.7

                                              \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                                          7. Applied rewrites20.7%

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

                                            \[\leadsto \left(\frac{1}{120} \cdot {x}^{4}\right) \cdot x \]
                                          9. Step-by-step derivation
                                            1. *-commutativeN/A

                                              \[\leadsto \left({x}^{4} \cdot \frac{1}{120}\right) \cdot x \]
                                            2. lower-*.f64N/A

                                              \[\leadsto \left({x}^{4} \cdot \frac{1}{120}\right) \cdot x \]
                                            3. metadata-evalN/A

                                              \[\leadsto \left({x}^{\left(2 + 2\right)} \cdot \frac{1}{120}\right) \cdot x \]
                                            4. pow-prod-upN/A

                                              \[\leadsto \left(\left({x}^{2} \cdot {x}^{2}\right) \cdot \frac{1}{120}\right) \cdot x \]
                                            5. pow2N/A

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

                                              \[\leadsto \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \frac{1}{120}\right) \cdot x \]
                                            7. associate-*r*N/A

                                              \[\leadsto \left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot \frac{1}{120}\right) \cdot x \]
                                            8. lower-*.f64N/A

                                              \[\leadsto \left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot \frac{1}{120}\right) \cdot x \]
                                            9. lift-*.f64N/A

                                              \[\leadsto \left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot \frac{1}{120}\right) \cdot x \]
                                            10. lift-*.f6420.4

                                              \[\leadsto \left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot 0.008333333333333333\right) \cdot x \]
                                          10. Applied rewrites20.4%

                                            \[\leadsto \left(\left(\left(\left(x \cdot x\right) \cdot x\right) \cdot x\right) \cdot 0.008333333333333333\right) \cdot x \]
                                        10. Recombined 2 regimes into one program.
                                        11. Add Preprocessing

                                        Alternative 14: 34.8% accurate, 4.3× speedup?

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

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

                                          \[\leadsto \color{blue}{\sin x} \]
                                        3. Step-by-step derivation
                                          1. lift-sin.f6451.5

                                            \[\leadsto \sin x \]
                                        4. Applied rewrites51.5%

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

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

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

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

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

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

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

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

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

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

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

                                            \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                                          11. lift-*.f6436.4

                                            \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                                        7. Applied rewrites36.4%

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

                                          \[\leadsto \mathsf{fma}\left(\frac{-1}{6}, x \cdot x, 1\right) \cdot x \]
                                        9. Step-by-step derivation
                                          1. Applied rewrites34.8%

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

                                          Alternative 15: 27.3% accurate, 51.3× speedup?

                                          \[\begin{array}{l} \\ x \end{array} \]
                                          (FPCore (x y) :precision binary64 x)
                                          double code(double x, double y) {
                                          	return x;
                                          }
                                          
                                          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 = x
                                          end function
                                          
                                          public static double code(double x, double y) {
                                          	return x;
                                          }
                                          
                                          def code(x, y):
                                          	return x
                                          
                                          function code(x, y)
                                          	return x
                                          end
                                          
                                          function tmp = code(x, y)
                                          	tmp = x;
                                          end
                                          
                                          code[x_, y_] := x
                                          
                                          \begin{array}{l}
                                          
                                          \\
                                          x
                                          \end{array}
                                          
                                          Derivation
                                          1. Initial program 100.0%

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

                                            \[\leadsto \color{blue}{\sin x} \]
                                          3. Step-by-step derivation
                                            1. lift-sin.f6451.5

                                              \[\leadsto \sin x \]
                                          4. Applied rewrites51.5%

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

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

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

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

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

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

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

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

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

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

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

                                              \[\leadsto \mathsf{fma}\left(\frac{1}{120} \cdot \left(x \cdot x\right) - \frac{1}{6}, x \cdot x, 1\right) \cdot x \]
                                            11. lift-*.f6436.4

                                              \[\leadsto \mathsf{fma}\left(0.008333333333333333 \cdot \left(x \cdot x\right) - 0.16666666666666666, x \cdot x, 1\right) \cdot x \]
                                          7. Applied rewrites36.4%

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

                                            \[\leadsto x \]
                                          9. Step-by-step derivation
                                            1. Applied rewrites27.3%

                                              \[\leadsto x \]
                                            2. Add Preprocessing

                                            Reproduce

                                            ?
                                            herbie shell --seed 2025120 
                                            (FPCore (x y)
                                              :name "Linear.Quaternion:$ccos from linear-1.19.1.3"
                                              :precision binary64
                                              (* (sin x) (/ (sinh y) y)))