Linear.Quaternion:$ccos from linear-1.19.1.3

Percentage Accurate: 100.0% → 100.0%

Time: 3.7s

Alternatives: 9

Speedup: 1.0×

• 51.7% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

Math

\[\sin x \cdot \frac{\sinh y}{y} \]

FPCore

(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))

C

double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}

Fortran

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

Java

public static double code(double x, double y) {
	return Math.sin(x) * (Math.sinh(y) / y);
}

Python

def code(x, y):
	return math.sin(x) * (math.sinh(y) / y)

Julia

function code(x, y)
	return Float64(sin(x) * Float64(sinh(y) / y))
end

MATLAB

function tmp = code(x, y)
	tmp = sin(x) * (sinh(y) / y);
end

Wolfram

code[x_, y_] := N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]

Initial Program: 100.0% accurate, 1.0× speedup

Math

\[\sin x \cdot \frac{\sinh y}{y} \]

FPCore

(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))

C

double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}

Fortran

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

Java

public static double code(double x, double y) {
	return Math.sin(x) * (Math.sinh(y) / y);
}

Python

def code(x, y):
	return math.sin(x) * (math.sinh(y) / y)

Julia

function code(x, y)
	return Float64(sin(x) * Float64(sinh(y) / y))
end

MATLAB

function tmp = code(x, y)
	tmp = sin(x) * (sinh(y) / y);
end

Wolfram

code[x_, y_] := N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]

Alternative 1: 99.1% accurate, 0.3× speedup

Math

\[\begin{array}{l} t_0 := \sin \left(\left|x\right|\right)\\ t_1 := \frac{\sinh y}{y}\\ t_2 := t\_0 \cdot t\_1\\ \mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;t\_2 \leq -\infty:\\ \;\;\;\;t\_1 \cdot \left(\mathsf{fma}\left(\left|x\right| \cdot \left|x\right|, -0.16666666666666666, 1\right) \cdot \left|x\right|\right)\\ \mathbf{elif}\;t\_2 \leq 1000:\\ \;\;\;\;t\_0 \cdot 1\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{y}{\left|x\right| \cdot \sinh y}}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (sin (fabs x))) (t_1 (/ (sinh y) y)) (t_2 (* t_0 t_1)))
   (*
    (copysign 1.0 x)
    (if (<= t_2 (- INFINITY))
      (* t_1 (* (fma (* (fabs x) (fabs x)) -0.16666666666666666 1.0) (fabs x)))
      (if (<= t_2 1000.0) (* t_0 1.0) (/ 1.0 (/ y (* (fabs x) (sinh y)))))))))

C

double code(double x, double y) {
	double t_0 = sin(fabs(x));
	double t_1 = sinh(y) / y;
	double t_2 = t_0 * t_1;
	double tmp;
	if (t_2 <= -((double) INFINITY)) {
		tmp = t_1 * (fma((fabs(x) * fabs(x)), -0.16666666666666666, 1.0) * fabs(x));
	} else if (t_2 <= 1000.0) {
		tmp = t_0 * 1.0;
	} else {
		tmp = 1.0 / (y / (fabs(x) * sinh(y)));
	}
	return copysign(1.0, x) * tmp;
}

Julia

function code(x, y)
	t_0 = sin(abs(x))
	t_1 = Float64(sinh(y) / y)
	t_2 = Float64(t_0 * t_1)
	tmp = 0.0
	if (t_2 <= Float64(-Inf))
		tmp = Float64(t_1 * Float64(fma(Float64(abs(x) * abs(x)), -0.16666666666666666, 1.0) * abs(x)));
	elseif (t_2 <= 1000.0)
		tmp = Float64(t_0 * 1.0);
	else
		tmp = Float64(1.0 / Float64(y / Float64(abs(x) * sinh(y))));
	end
	return Float64(copysign(1.0, x) * tmp)
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision]}, Block[{t$95$1 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$2 = N[(t$95$0 * t$95$1), $MachinePrecision]}, N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[t$95$2, (-Infinity)], N[(t$95$1 * N[(N[(N[(N[Abs[x], $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * -0.16666666666666666 + 1.0), $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$2, 1000.0], N[(t$95$0 * 1.0), $MachinePrecision], N[(1.0 / N[(y / N[(N[Abs[x], $MachinePrecision] * N[Sinh[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]), $MachinePrecision]]]]

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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 63.0%

         \[\leadsto \color{blue}{\frac{\sinh y}{y} \cdot \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \]

      4. lift-*.f64 N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 63.0%

         \[\leadsto \frac{\sinh y}{y} \cdot \left(\left(1 + -0.16666666666666666 \cdot {x}^{2}\right) \cdot \color{blue}{x}\right) \]

      7. lift-+.f64 N/A

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

      8. +-commutative N/A

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

      9. lift-*.f64 N/A

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

      10. *-commutative N/A

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

      11. lower-fma.f64 63.0%

          \[\leadsto \frac{\sinh y}{y} \cdot \left(\mathsf{fma}\left({x}^{2}, -0.16666666666666666, 1\right) \cdot x\right) \]

      12. lift-pow.f64 N/A

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

      13. unpow2 N/A

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

      14. lower-*.f64 63.0%

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

   6. Applied rewrites 63.0%

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

   if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1e3

   1. Initial program 100.0%

      \[\sin x \cdot \frac{\sinh y}{y} \]

   2. Taylor expanded in y around 0

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

   4. Applied rewrites 52.0%

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

   if 1e3 < (*.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

   4. Applied rewrites 62.2%

      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. div-flip N/A

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

      5. lower-unsound-/.f64 N/A

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

      6. lower-unsound-/.f64 N/A

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

      7. lower-*.f64 51.1%

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

   6. Applied rewrites 51.1%

      \[\leadsto \color{blue}{\frac{1}{\frac{y}{x \cdot \sinh y}}} \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 2: 74.9% accurate, 0.5× speedup

Math

\[\begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;\sin \left(\left|x\right|\right) \cdot t\_0 \leq 10^{-14}:\\ \;\;\;\;t\_0 \cdot \left(\mathsf{fma}\left(\left|x\right| \cdot \left|x\right|, -0.16666666666666666, 1\right) \cdot \left|x\right|\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{\frac{\frac{2}{\left|x\right|}}{\sinh y}}{\frac{2}{y}}}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (sinh y) y)))
   (*
    (copysign 1.0 x)
    (if (<= (* (sin (fabs x)) t_0) 1e-14)
      (* t_0 (* (fma (* (fabs x) (fabs x)) -0.16666666666666666 1.0) (fabs x)))
      (/ 1.0 (/ (/ (/ 2.0 (fabs x)) (sinh y)) (/ 2.0 y)))))))

C

double code(double x, double y) {
	double t_0 = sinh(y) / y;
	double tmp;
	if ((sin(fabs(x)) * t_0) <= 1e-14) {
		tmp = t_0 * (fma((fabs(x) * fabs(x)), -0.16666666666666666, 1.0) * fabs(x));
	} else {
		tmp = 1.0 / (((2.0 / fabs(x)) / sinh(y)) / (2.0 / y));
	}
	return copysign(1.0, x) * tmp;
}

Julia

function code(x, y)
	t_0 = Float64(sinh(y) / y)
	tmp = 0.0
	if (Float64(sin(abs(x)) * t_0) <= 1e-14)
		tmp = Float64(t_0 * Float64(fma(Float64(abs(x) * abs(x)), -0.16666666666666666, 1.0) * abs(x)));
	else
		tmp = Float64(1.0 / Float64(Float64(Float64(2.0 / abs(x)) / sinh(y)) / Float64(2.0 / y)));
	end
	return Float64(copysign(1.0, x) * tmp)
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * t$95$0), $MachinePrecision], 1e-14], N[(t$95$0 * N[(N[(N[(N[Abs[x], $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * -0.16666666666666666 + 1.0), $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(N[(N[(2.0 / N[Abs[x], $MachinePrecision]), $MachinePrecision] / N[Sinh[y], $MachinePrecision]), $MachinePrecision] / N[(2.0 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 9.99999999999999999e-15

   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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 63.0%

         \[\leadsto \color{blue}{\frac{\sinh y}{y} \cdot \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \]

      4. lift-*.f64 N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 63.0%

         \[\leadsto \frac{\sinh y}{y} \cdot \left(\left(1 + -0.16666666666666666 \cdot {x}^{2}\right) \cdot \color{blue}{x}\right) \]

      7. lift-+.f64 N/A

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

      8. +-commutative N/A

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

      9. lift-*.f64 N/A

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

      10. *-commutative N/A

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

      11. lower-fma.f64 63.0%

          \[\leadsto \frac{\sinh y}{y} \cdot \left(\mathsf{fma}\left({x}^{2}, -0.16666666666666666, 1\right) \cdot x\right) \]

      12. lift-pow.f64 N/A

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

      13. unpow2 N/A

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

      14. lower-*.f64 63.0%

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

   6. Applied rewrites 63.0%

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

   if 9.99999999999999999e-15 < (*.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

   4. Applied rewrites 62.2%

      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. *-commutative N/A

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

      3. lift-/.f64 N/A

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

      4. mult-flip N/A

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

      5. lift-/.f64 N/A

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

      6. associate-*l* N/A

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

      7. lower-*.f64 N/A

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

      8. lower-*.f64 50.6%

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

   6. Applied rewrites 50.6%

      \[\leadsto \color{blue}{\sinh y \cdot \left(\frac{1}{y} \cdot x\right)} \]
   7. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. *-commutative N/A

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

      3. lift-sinh.f64 N/A

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

      4. sinh-def N/A

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

      5. associate-*r/ N/A

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

      6. div-flip N/A

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

      7. lower-unsound-/.f64 N/A

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

      8. lower-unsound-/.f64 N/A

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

      9. *-commutative N/A

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

      10. lift-*.f64 N/A

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

      11. associate-*r* N/A

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

      12. lower-*.f64 N/A

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

   8. Applied rewrites 62.1%

      \[\leadsto \color{blue}{\frac{1}{\frac{2}{\frac{2 \cdot \sinh y}{y} \cdot x}}} \]
   9. Step-by-step derivation

      1. lift-/.f64 N/A

         \[\leadsto \frac{1}{\color{blue}{\frac{2}{\frac{2 \cdot \sinh y}{y} \cdot x}}} \]

      2. lift-*.f64 N/A

         \[\leadsto \frac{1}{\frac{2}{\color{blue}{\frac{2 \cdot \sinh y}{y} \cdot x}}} \]

      3. *-commutative N/A

         \[\leadsto \frac{1}{\frac{2}{\color{blue}{x \cdot \frac{2 \cdot \sinh y}{y}}}} \]

      4. associate-/r* N/A

         \[\leadsto \frac{1}{\color{blue}{\frac{\frac{2}{x}}{\frac{2 \cdot \sinh y}{y}}}} \]

      5. lift-/.f64 N/A

         \[\leadsto \frac{1}{\frac{\frac{2}{x}}{\color{blue}{\frac{2 \cdot \sinh y}{y}}}} \]

      6. lift-*.f64 N/A

         \[\leadsto \frac{1}{\frac{\frac{2}{x}}{\frac{\color{blue}{2 \cdot \sinh y}}{y}}} \]

      7. *-commutative N/A

         \[\leadsto \frac{1}{\frac{\frac{2}{x}}{\frac{\color{blue}{\sinh y \cdot 2}}{y}}} \]

      8. associate-/l* N/A

         \[\leadsto \frac{1}{\frac{\frac{2}{x}}{\color{blue}{\sinh y \cdot \frac{2}{y}}}} \]

      9. associate-/r* N/A

         \[\leadsto \frac{1}{\color{blue}{\frac{\frac{\frac{2}{x}}{\sinh y}}{\frac{2}{y}}}} \]

      10. lower-/.f64 N/A

          \[\leadsto \frac{1}{\color{blue}{\frac{\frac{\frac{2}{x}}{\sinh y}}{\frac{2}{y}}}} \]

      11. lower-/.f64 N/A

          \[\leadsto \frac{1}{\frac{\color{blue}{\frac{\frac{2}{x}}{\sinh y}}}{\frac{2}{y}}} \]

      12. lower-/.f64 N/A

          \[\leadsto \frac{1}{\frac{\frac{\color{blue}{\frac{2}{x}}}{\sinh y}}{\frac{2}{y}}} \]

      13. lower-/.f64 50.4%

          \[\leadsto \frac{1}{\frac{\frac{\frac{2}{x}}{\sinh y}}{\color{blue}{\frac{2}{y}}}} \]

   10. Applied rewrites 50.4%

       \[\leadsto \frac{1}{\color{blue}{\frac{\frac{\frac{2}{x}}{\sinh y}}{\frac{2}{y}}}} \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 3: 73.0% accurate, 0.6× speedup

Math

\[\begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;\sin \left(\left|x\right|\right) \cdot t\_0 \leq -0.01:\\ \;\;\;\;\frac{\left(\mathsf{fma}\left(\left|x\right| \cdot \left|x\right|, -0.16666666666666666, 1\right) \cdot \left|x\right|\right) \cdot y}{y}\\ \mathbf{else}:\\ \;\;\;\;t\_0 \cdot \left|x\right|\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (sinh y) y)))
   (*
    (copysign 1.0 x)
    (if (<= (* (sin (fabs x)) t_0) -0.01)
      (/
       (* (* (fma (* (fabs x) (fabs x)) -0.16666666666666666 1.0) (fabs x)) y)
       y)
      (* t_0 (fabs x))))))

C

double code(double x, double y) {
	double t_0 = sinh(y) / y;
	double tmp;
	if ((sin(fabs(x)) * t_0) <= -0.01) {
		tmp = ((fma((fabs(x) * fabs(x)), -0.16666666666666666, 1.0) * fabs(x)) * y) / y;
	} else {
		tmp = t_0 * fabs(x);
	}
	return copysign(1.0, x) * tmp;
}

Julia

function code(x, y)
	t_0 = Float64(sinh(y) / y)
	tmp = 0.0
	if (Float64(sin(abs(x)) * t_0) <= -0.01)
		tmp = Float64(Float64(Float64(fma(Float64(abs(x) * abs(x)), -0.16666666666666666, 1.0) * abs(x)) * y) / y);
	else
		tmp = Float64(t_0 * abs(x));
	end
	return Float64(copysign(1.0, x) * tmp)
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * t$95$0), $MachinePrecision], -0.01], N[(N[(N[(N[(N[(N[Abs[x], $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * -0.16666666666666666 + 1.0), $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], N[(t$95$0 * N[Abs[x], $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]]

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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]

   5. Taylor expanded in y around 0

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 34.7%

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. lower-/.f64 N/A

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

      5. lower-*.f64 25.6%

         \[\leadsto \frac{\color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot y}}{y} \]

      6. lift-*.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 25.6%

         \[\leadsto \frac{\left(\left(1 + -0.16666666666666666 \cdot {x}^{2}\right) \cdot \color{blue}{x}\right) \cdot y}{y} \]

      9. lift-+.f64 N/A

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

      10. +-commutative N/A

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

      11. lift-*.f64 N/A

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

      12. *-commutative N/A

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

      13. lower-fma.f64 25.6%

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, -0.16666666666666666, 1\right) \cdot x\right) \cdot y}{y} \]

      14. lift-pow.f64 N/A

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, \frac{-1}{6}, 1\right) \cdot x\right) \cdot y}{y} \]

      15. unpow2 N/A

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

      16. lower-*.f64 25.6%

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

   9. Applied rewrites 25.6%

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

   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

   4. Applied rewrites 62.2%

      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
   5. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. *-commutative N/A

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

      3. lower-*.f64 62.2%

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

   6. Applied rewrites 62.2%

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

Alternative 4: 42.9% accurate, 0.4× speedup

Math

\[\begin{array}{l} t_0 := \sin \left(\left|x\right|\right) \cdot \frac{\sinh y}{y}\\ \mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;t\_0 \leq -0.01:\\ \;\;\;\;\frac{\left(\mathsf{fma}\left(\left|x\right| \cdot \left|x\right|, -0.16666666666666666, 1\right) \cdot \left|x\right|\right) \cdot y}{y}\\ \mathbf{elif}\;t\_0 \leq 0.105:\\ \;\;\;\;\left|x\right| \cdot \frac{y}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{y}{y \cdot \left|x\right|}}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (sin (fabs x)) (/ (sinh y) y))))
   (*
    (copysign 1.0 x)
    (if (<= t_0 -0.01)
      (/
       (* (* (fma (* (fabs x) (fabs x)) -0.16666666666666666 1.0) (fabs x)) y)
       y)
      (if (<= t_0 0.105) (* (fabs x) (/ y y)) (/ 1.0 (/ y (* y (fabs x)))))))))

C

double code(double x, double y) {
	double t_0 = sin(fabs(x)) * (sinh(y) / y);
	double tmp;
	if (t_0 <= -0.01) {
		tmp = ((fma((fabs(x) * fabs(x)), -0.16666666666666666, 1.0) * fabs(x)) * y) / y;
	} else if (t_0 <= 0.105) {
		tmp = fabs(x) * (y / y);
	} else {
		tmp = 1.0 / (y / (y * fabs(x)));
	}
	return copysign(1.0, x) * tmp;
}

Julia

function code(x, y)
	t_0 = Float64(sin(abs(x)) * Float64(sinh(y) / y))
	tmp = 0.0
	if (t_0 <= -0.01)
		tmp = Float64(Float64(Float64(fma(Float64(abs(x) * abs(x)), -0.16666666666666666, 1.0) * abs(x)) * y) / y);
	elseif (t_0 <= 0.105)
		tmp = Float64(abs(x) * Float64(y / y));
	else
		tmp = Float64(1.0 / Float64(y / Float64(y * abs(x))));
	end
	return Float64(copysign(1.0, x) * tmp)
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]}, N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[t$95$0, -0.01], N[(N[(N[(N[(N[(N[Abs[x], $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * -0.16666666666666666 + 1.0), $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[t$95$0, 0.105], N[(N[Abs[x], $MachinePrecision] * N[(y / y), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(y / N[(y * N[Abs[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]), $MachinePrecision]]

Derivation

1. Split input into 3 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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]

   5. Taylor expanded in y around 0

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 34.7%

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. lower-/.f64 N/A

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

      5. lower-*.f64 25.6%

         \[\leadsto \frac{\color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot y}}{y} \]

      6. lift-*.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 25.6%

         \[\leadsto \frac{\left(\left(1 + -0.16666666666666666 \cdot {x}^{2}\right) \cdot \color{blue}{x}\right) \cdot y}{y} \]

      9. lift-+.f64 N/A

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

      10. +-commutative N/A

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

      11. lift-*.f64 N/A

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

      12. *-commutative N/A

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

      13. lower-fma.f64 25.6%

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, -0.16666666666666666, 1\right) \cdot x\right) \cdot y}{y} \]

      14. lift-pow.f64 N/A

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, \frac{-1}{6}, 1\right) \cdot x\right) \cdot y}{y} \]

      15. unpow2 N/A

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

      16. lower-*.f64 25.6%

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

   9. Applied rewrites 25.6%

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

   if -0.0100000000000000002 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.104999999999999996

   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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

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

   if 0.104999999999999996 < (*.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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. div-flip N/A

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

      5. lower-unsound-/.f64 N/A

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

      6. lower-unsound-/.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 21.0%

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

   9. Applied rewrites 21.0%

      \[\leadsto \color{blue}{\frac{1}{\frac{y}{y \cdot x}}} \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 5: 42.9% accurate, 0.4× speedup

Math

\[\begin{array}{l} t_0 := \left|x\right| \cdot \left|x\right|\\ t_1 := \sin \left(\left|x\right|\right) \cdot \frac{\sinh y}{y}\\ \mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;t\_1 \leq -0.998:\\ \;\;\;\;\frac{\left(\mathsf{fma}\left(t\_0, -0.16666666666666666, 1\right) \cdot \left|x\right|\right) \cdot y}{y}\\ \mathbf{elif}\;t\_1 \leq 10^{-14}:\\ \;\;\;\;\mathsf{fma}\left(t\_0 \cdot \left|x\right|, -0.16666666666666666, \left|x\right|\right) \cdot \frac{y}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{y}{y \cdot \left|x\right|}}\\ \end{array} \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (let* ((t_0 (* (fabs x) (fabs x))) (t_1 (* (sin (fabs x)) (/ (sinh y) y))))
   (*
    (copysign 1.0 x)
    (if (<= t_1 -0.998)
      (/ (* (* (fma t_0 -0.16666666666666666 1.0) (fabs x)) y) y)
      (if (<= t_1 1e-14)
        (* (fma (* t_0 (fabs x)) -0.16666666666666666 (fabs x)) (/ y y))
        (/ 1.0 (/ y (* y (fabs x)))))))))

C

double code(double x, double y) {
	double t_0 = fabs(x) * fabs(x);
	double t_1 = sin(fabs(x)) * (sinh(y) / y);
	double tmp;
	if (t_1 <= -0.998) {
		tmp = ((fma(t_0, -0.16666666666666666, 1.0) * fabs(x)) * y) / y;
	} else if (t_1 <= 1e-14) {
		tmp = fma((t_0 * fabs(x)), -0.16666666666666666, fabs(x)) * (y / y);
	} else {
		tmp = 1.0 / (y / (y * fabs(x)));
	}
	return copysign(1.0, x) * tmp;
}

Julia

function code(x, y)
	t_0 = Float64(abs(x) * abs(x))
	t_1 = Float64(sin(abs(x)) * Float64(sinh(y) / y))
	tmp = 0.0
	if (t_1 <= -0.998)
		tmp = Float64(Float64(Float64(fma(t_0, -0.16666666666666666, 1.0) * abs(x)) * y) / y);
	elseif (t_1 <= 1e-14)
		tmp = Float64(fma(Float64(t_0 * abs(x)), -0.16666666666666666, abs(x)) * Float64(y / y));
	else
		tmp = Float64(1.0 / Float64(y / Float64(y * abs(x))));
	end
	return Float64(copysign(1.0, x) * tmp)
end

Wolfram

code[x_, y_] := Block[{t$95$0 = N[(N[Abs[x], $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]}, N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[t$95$1, -0.998], N[(N[(N[(N[(t$95$0 * -0.16666666666666666 + 1.0), $MachinePrecision] * N[Abs[x], $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[t$95$1, 1e-14], N[(N[(N[(t$95$0 * N[Abs[x], $MachinePrecision]), $MachinePrecision] * -0.16666666666666666 + N[Abs[x], $MachinePrecision]), $MachinePrecision] * N[(y / y), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(y / N[(y * N[Abs[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]), $MachinePrecision]]]

Derivation

1. Split input into 3 regimes

2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.998

   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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]

   5. Taylor expanded in y around 0

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 34.7%

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. lower-/.f64 N/A

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

      5. lower-*.f64 25.6%

         \[\leadsto \frac{\color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot y}}{y} \]

      6. lift-*.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 25.6%

         \[\leadsto \frac{\left(\left(1 + -0.16666666666666666 \cdot {x}^{2}\right) \cdot \color{blue}{x}\right) \cdot y}{y} \]

      9. lift-+.f64 N/A

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

      10. +-commutative N/A

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

      11. lift-*.f64 N/A

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

      12. *-commutative N/A

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

      13. lower-fma.f64 25.6%

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, -0.16666666666666666, 1\right) \cdot x\right) \cdot y}{y} \]

      14. lift-pow.f64 N/A

          \[\leadsto \frac{\left(\mathsf{fma}\left({x}^{2}, \frac{-1}{6}, 1\right) \cdot x\right) \cdot y}{y} \]

      15. unpow2 N/A

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

      16. lower-*.f64 25.6%

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

   9. Applied rewrites 25.6%

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

   if -0.998 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 9.99999999999999999e-15

   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. lower-*.f64 N/A

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

      2. lower-+.f64 N/A

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

      3. lower-*.f64 N/A

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

      4. lower-pow.f64 63.0%

         \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{\color{blue}{2}}\right)\right) \cdot \frac{\sinh y}{y} \]

   4. Applied rewrites 63.0%

      \[\leadsto \color{blue}{\left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right)} \cdot \frac{\sinh y}{y} \]

   5. Taylor expanded in y around 0

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 34.7%

      \[\leadsto \left(x \cdot \left(1 + -0.16666666666666666 \cdot {x}^{2}\right)\right) \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-+.f64 N/A

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

      3. +-commutative N/A

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

      4. distribute-rgt-in N/A

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

      5. *-commutative N/A

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

      6. lift-*.f64 N/A

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

      7. *-commutative N/A

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

      8. associate-*r* N/A

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

      9. *-lft-identity N/A

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

      10. lower-fma.f64 N/A

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

      11. lift-pow.f64 N/A

          \[\leadsto \mathsf{fma}\left(x \cdot {x}^{2}, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      12. unpow2 N/A

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

      13. cube-unmult N/A

          \[\leadsto \mathsf{fma}\left({x}^{3}, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      14. metadata-eval N/A

          \[\leadsto \mathsf{fma}\left({x}^{\left(2 + 1\right)}, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      15. pow-plus N/A

          \[\leadsto \mathsf{fma}\left({x}^{2} \cdot x, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      16. lift-pow.f64 N/A

          \[\leadsto \mathsf{fma}\left({x}^{2} \cdot x, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      17. lower-*.f64 34.7%

          \[\leadsto \mathsf{fma}\left({x}^{2} \cdot x, -0.16666666666666666, x\right) \cdot \frac{y}{y} \]

      18. lift-pow.f64 N/A

          \[\leadsto \mathsf{fma}\left({x}^{2} \cdot x, \frac{-1}{6}, x\right) \cdot \frac{y}{y} \]

      19. unpow2 N/A

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

      20. lower-*.f64 34.7%

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

   9. Applied rewrites 34.7%

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

   if 9.99999999999999999e-15 < (*.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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. div-flip N/A

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

      5. lower-unsound-/.f64 N/A

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

      6. lower-unsound-/.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 21.0%

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

   9. Applied rewrites 21.0%

      \[\leadsto \color{blue}{\frac{1}{\frac{y}{y \cdot x}}} \]
3. Recombined 3 regimes into one program.
4. Add Preprocessing

Alternative 6: 32.1% accurate, 0.7× speedup

Math

\[\mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;\sin \left(\left|x\right|\right) \cdot \frac{\sinh y}{y} \leq 6.8 \cdot 10^{-15}:\\ \;\;\;\;\left|x\right| \cdot \frac{y}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{y \cdot \left|x\right|}{y}\\ \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (*
  (copysign 1.0 x)
  (if (<= (* (sin (fabs x)) (/ (sinh y) y)) 6.8e-15)
    (* (fabs x) (/ y y))
    (/ (* y (fabs x)) y))))

C

double code(double x, double y) {
	double tmp;
	if ((sin(fabs(x)) * (sinh(y) / y)) <= 6.8e-15) {
		tmp = fabs(x) * (y / y);
	} else {
		tmp = (y * fabs(x)) / y;
	}
	return copysign(1.0, x) * tmp;
}

Java

public static double code(double x, double y) {
	double tmp;
	if ((Math.sin(Math.abs(x)) * (Math.sinh(y) / y)) <= 6.8e-15) {
		tmp = Math.abs(x) * (y / y);
	} else {
		tmp = (y * Math.abs(x)) / y;
	}
	return Math.copySign(1.0, x) * tmp;
}

Python

def code(x, y):
	tmp = 0
	if (math.sin(math.fabs(x)) * (math.sinh(y) / y)) <= 6.8e-15:
		tmp = math.fabs(x) * (y / y)
	else:
		tmp = (y * math.fabs(x)) / y
	return math.copysign(1.0, x) * tmp

Julia

function code(x, y)
	tmp = 0.0
	if (Float64(sin(abs(x)) * Float64(sinh(y) / y)) <= 6.8e-15)
		tmp = Float64(abs(x) * Float64(y / y));
	else
		tmp = Float64(Float64(y * abs(x)) / y);
	end
	return Float64(copysign(1.0, x) * tmp)
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((sin(abs(x)) * (sinh(y) / y)) <= 6.8e-15)
		tmp = abs(x) * (y / y);
	else
		tmp = (y * abs(x)) / y;
	end
	tmp_2 = (sign(x) * abs(1.0)) * tmp;
end

Wolfram

code[x_, y_] := N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 6.8e-15], N[(N[Abs[x], $MachinePrecision] * N[(y / y), $MachinePrecision]), $MachinePrecision], N[(N[(y * N[Abs[x], $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]]), $MachinePrecision]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 6.8000000000000001e-15

   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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

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

   if 6.8000000000000001e-15 < (*.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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. lower-/.f64 N/A

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

      5. *-commutative N/A

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

      6. lower-*.f64 21.0%

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

   9. Applied rewrites 21.0%

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

Alternative 7: 32.1% accurate, 0.7× speedup

Math

\[\mathsf{copysign}\left(1, x\right) \cdot \begin{array}{l} \mathbf{if}\;\sin \left(\left|x\right|\right) \cdot \frac{\sinh y}{y} \leq 0.105:\\ \;\;\;\;\left|x\right| \cdot \frac{y}{y}\\ \mathbf{else}:\\ \;\;\;\;\frac{1}{\frac{y}{y \cdot \left|x\right|}}\\ \end{array} \]

FPCore

(FPCore (x y)
 :precision binary64
 (*
  (copysign 1.0 x)
  (if (<= (* (sin (fabs x)) (/ (sinh y) y)) 0.105)
    (* (fabs x) (/ y y))
    (/ 1.0 (/ y (* y (fabs x)))))))

C

double code(double x, double y) {
	double tmp;
	if ((sin(fabs(x)) * (sinh(y) / y)) <= 0.105) {
		tmp = fabs(x) * (y / y);
	} else {
		tmp = 1.0 / (y / (y * fabs(x)));
	}
	return copysign(1.0, x) * tmp;
}

Java

public static double code(double x, double y) {
	double tmp;
	if ((Math.sin(Math.abs(x)) * (Math.sinh(y) / y)) <= 0.105) {
		tmp = Math.abs(x) * (y / y);
	} else {
		tmp = 1.0 / (y / (y * Math.abs(x)));
	}
	return Math.copySign(1.0, x) * tmp;
}

Python

def code(x, y):
	tmp = 0
	if (math.sin(math.fabs(x)) * (math.sinh(y) / y)) <= 0.105:
		tmp = math.fabs(x) * (y / y)
	else:
		tmp = 1.0 / (y / (y * math.fabs(x)))
	return math.copysign(1.0, x) * tmp

Julia

function code(x, y)
	tmp = 0.0
	if (Float64(sin(abs(x)) * Float64(sinh(y) / y)) <= 0.105)
		tmp = Float64(abs(x) * Float64(y / y));
	else
		tmp = Float64(1.0 / Float64(y / Float64(y * abs(x))));
	end
	return Float64(copysign(1.0, x) * tmp)
end

MATLAB

function tmp_2 = code(x, y)
	tmp = 0.0;
	if ((sin(abs(x)) * (sinh(y) / y)) <= 0.105)
		tmp = abs(x) * (y / y);
	else
		tmp = 1.0 / (y / (y * abs(x)));
	end
	tmp_2 = (sign(x) * abs(1.0)) * tmp;
end

Wolfram

code[x_, y_] := N[(N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision] * If[LessEqual[N[(N[Sin[N[Abs[x], $MachinePrecision]], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 0.105], N[(N[Abs[x], $MachinePrecision] * N[(y / y), $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(y / N[(y * N[Abs[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]

Derivation

1. Split input into 2 regimes

2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.104999999999999996

   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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

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

   if 0.104999999999999996 < (*.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

   4. Applied rewrites 62.2%

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

   5. Taylor expanded in y around 0

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   6. Step-by-step derivation

   7. Applied rewrites 27.0%

      \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
   8. Step-by-step derivation

      1. lift-*.f64 N/A

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

      2. lift-/.f64 N/A

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

      3. associate-*r/ N/A

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

      4. div-flip N/A

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

      5. lower-unsound-/.f64 N/A

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

      6. lower-unsound-/.f64 N/A

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

      7. *-commutative N/A

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

      8. lower-*.f64 21.0%

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

   9. Applied rewrites 21.0%

      \[\leadsto \color{blue}{\frac{1}{\frac{y}{y \cdot x}}} \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 8: 27.0% accurate, 7.0× speedup

Math

\[x \cdot \frac{y}{y} \]

FPCore

(FPCore (x y) :precision binary64 (* x (/ y y)))

C

double code(double x, double y) {
	return x * (y / y);
}

Fortran

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 * (y / y)
end function

Java

public static double code(double x, double y) {
	return x * (y / y);
}

Python

def code(x, y):
	return x * (y / y)

Julia

function code(x, y)
	return Float64(x * Float64(y / y))
end

MATLAB

function tmp = code(x, y)
	tmp = x * (y / y);
end

Wolfram

code[x_, y_] := N[(x * N[(y / y), $MachinePrecision]), $MachinePrecision]

Derivation

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

4. Applied rewrites 62.2%

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

5. Taylor expanded in y around 0

   \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
6. Step-by-step derivation

7. Applied rewrites 27.0%

   \[\leadsto x \cdot \frac{\color{blue}{y}}{y} \]
8. Add Preprocessing

Reproduce

herbie shell --seed 2025184 
(FPCore (x y)
  :name "Linear.Quaternion:$ccos from linear-1.19.1.3"
  :precision binary64
  (* (sin x) (/ (sinh y) y)))