Numeric.SpecFunctions:choose from math-functions-0.1.5.2

Percentage Accurate: 84.8% → 97.0%

Time: 5.2s

Alternatives: 4

Speedup: 0.5×

Specification

Math

\[\begin{array}{l} \\ \frac{x \cdot \left(y + z\right)}{z} \end{array} \]

FPCore

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

C

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

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, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (x * (y + z)) / z
end function

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Initial Program: 84.8% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ \frac{x \cdot \left(y + z\right)}{z} \end{array} \]

FPCore

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

C

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

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, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (x * (y + z)) / z
end function

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Alternative 1: 97.0% accurate, 0.5× speedup

Math

\[\begin{array}{l} x\_m = \left|x\right| \\ x\_s = \mathsf{copysign}\left(1, x\right) \\ x\_s \cdot \begin{array}{l} \mathbf{if}\;\frac{x\_m \cdot \left(y + z\right)}{z} \leq -1 \cdot 10^{+78}:\\ \;\;\;\;\frac{x\_m}{z} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{z}, x\_m, x\_m\right)\\ \end{array} \end{array} \]

FPCore

x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m y z)
 :precision binary64
 (*
  x_s
  (if (<= (/ (* x_m (+ y z)) z) -1e+78)
    (* (/ x_m z) y)
    (fma (/ y z) x_m x_m))))

C

x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m, double y, double z) {
	double tmp;
	if (((x_m * (y + z)) / z) <= -1e+78) {
		tmp = (x_m / z) * y;
	} else {
		tmp = fma((y / z), x_m, x_m);
	}
	return x_s * tmp;
}

Julia

x\_m = abs(x)
x\_s = copysign(1.0, x)
function code(x_s, x_m, y, z)
	tmp = 0.0
	if (Float64(Float64(x_m * Float64(y + z)) / z) <= -1e+78)
		tmp = Float64(Float64(x_m / z) * y);
	else
		tmp = fma(Float64(y / z), x_m, x_m);
	end
	return Float64(x_s * tmp)
end

Wolfram

x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_, y_, z_] := N[(x$95$s * If[LessEqual[N[(N[(x$95$m * N[(y + z), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], -1e+78], N[(N[(x$95$m / z), $MachinePrecision] * y), $MachinePrecision], N[(N[(y / z), $MachinePrecision] * x$95$m + x$95$m), $MachinePrecision]]), $MachinePrecision]

Derivation

1. Split input into 2 regimes

2. if (/.f64 (*.f64 x (+.f64 y z)) z) < -1.00000000000000001e78

   1. Initial program 69.4%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-+.f64 N/A

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

      2. unpow1 N/A

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

      3. metadata-eval N/A

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

      4. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + z\right)}{z} \]

      5. pow2 N/A

         \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + z\right)}{z} \]

      6. rem-sqrt-square-rev N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\left|y\right|} + z\right)}{z} \]

      7. unpow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{{z}^{1}}\right)}{z} \]

      8. metadata-eval N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + {z}^{\color{blue}{\left(\frac{2}{2}\right)}}\right)}{z} \]

      9. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\sqrt{{z}^{2}}}\right)}{z} \]

      10. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \sqrt{\color{blue}{z \cdot z}}\right)}{z} \]

      11. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\left|z\right|}\right)}{z} \]

      12. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y \cdot y}} + \left|z\right|\right)}{z} \]

      13. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{{y}^{2}}} + \left|z\right|\right)}{z} \]

      14. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      15. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{1}} + \left|z\right|\right)}{z} \]

      16. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{y} + \left|z\right|\right)}{z} \]

      17. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{1}} + \left|z\right|\right)}{z} \]

      18. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      19. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + \left|z\right|\right)}{z} \]

      20. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + \left|z\right|\right)}{z} \]

      21. sqrt-prod N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y} \cdot \sqrt{y}} + \left|z\right|\right)}{z} \]

      22. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{\sqrt{z \cdot z}}\right)}{z} \]

      23. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \sqrt{\color{blue}{{z}^{2}}}\right)}{z} \]

      24. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{{z}^{\left(\frac{2}{2}\right)}}\right)}{z} \]

      25. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + {z}^{\color{blue}{1}}\right)}{z} \]

      26. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{z}\right)}{z} \]

      27. lower-fma.f64 N/A

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

      28. lower-sqrt.f64 N/A

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

      29. lower-sqrt.f64 28.3

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

   4. Applied rewrites 28.3%

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

   5. Taylor expanded in y around -inf

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

      1. *-commutative N/A

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

      2. associate-/l* N/A

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

      3. *-commutative N/A

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

      4. unpow2 N/A

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

      5. rem-square-sqrt N/A

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

      6. associate-*r* N/A

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

      7. associate-*r* N/A

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

      8. metadata-eval N/A

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

      9. *-lft-identity N/A

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

      10. *-commutative N/A

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

      11. lower-*.f64 N/A

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

      12. lower-/.f64 53.9

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

   7. Applied rewrites 53.9%

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

   if -1.00000000000000001e78 < (/.f64 (*.f64 x (+.f64 y z)) z)

   1. Initial program 88.5%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing

   3. Taylor expanded in x around 0

      \[\leadsto \color{blue}{\frac{x \cdot \left(y + z\right)}{z}} \]
   4. Step-by-step derivation

      1. associate-/l* N/A

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

      2. +-commutative N/A

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

      3. div-add N/A

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

      4. distribute-rgt-in N/A

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

      5. *-inverses N/A

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

      6. metadata-eval N/A

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

      7. distribute-lft-neg-in N/A

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

      8. *-commutative N/A

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

      9. associate-/l* N/A

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

      10. remove-double-neg N/A

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

      11. mul-1-neg N/A

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

      12. distribute-neg-in N/A

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

      13. distribute-lft-out N/A

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

      14. mul-1-neg N/A

          \[\leadsto \mathsf{neg}\left(\color{blue}{\left(\mathsf{neg}\left(\left(x + \frac{x \cdot y}{z}\right)\right)\right)}\right) \]

      15. remove-double-neg N/A

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

      16. +-commutative N/A

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

      17. associate-/l* N/A

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

      18. *-commutative N/A

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

      19. lower-fma.f64 N/A

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

      20. lower-/.f64 97.4

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

   5. Applied rewrites 97.4%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\frac{y}{z}, x, x\right)} \]
3. Recombined 2 regimes into one program.

4. Final simplification 85.5%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{x \cdot \left(y + z\right)}{z} \leq -1 \cdot 10^{+78}:\\ \;\;\;\;\frac{x}{z} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(\frac{y}{z}, x, x\right)\\ \end{array} \]
5. Add Preprocessing

Alternative 2: 71.9% accurate, 0.3× speedup

Math

\[\begin{array}{l} x\_m = \left|x\right| \\ x\_s = \mathsf{copysign}\left(1, x\right) \\ \begin{array}{l} t_0 := \frac{x\_m \cdot \left(y + z\right)}{z}\\ x\_s \cdot \begin{array}{l} \mathbf{if}\;t\_0 \leq 0 \lor \neg \left(t\_0 \leq 5 \cdot 10^{+293}\right):\\ \;\;\;\;\frac{x\_m}{z} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\frac{z \cdot x\_m}{z}\\ \end{array} \end{array} \end{array} \]

FPCore

x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m y z)
 :precision binary64
 (let* ((t_0 (/ (* x_m (+ y z)) z)))
   (*
    x_s
    (if (or (<= t_0 0.0) (not (<= t_0 5e+293)))
      (* (/ x_m z) y)
      (/ (* z x_m) z)))))

C

x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m, double y, double z) {
	double t_0 = (x_m * (y + z)) / z;
	double tmp;
	if ((t_0 <= 0.0) || !(t_0 <= 5e+293)) {
		tmp = (x_m / z) * y;
	} else {
		tmp = (z * x_m) / z;
	}
	return x_s * tmp;
}

Fortran

x\_m =     private
x\_s =     private
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_s, x_m, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x_s
    real(8), intent (in) :: x_m
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = (x_m * (y + z)) / z
    if ((t_0 <= 0.0d0) .or. (.not. (t_0 <= 5d+293))) then
        tmp = (x_m / z) * y
    else
        tmp = (z * x_m) / z
    end if
    code = x_s * tmp
end function

Java

x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m, double y, double z) {
	double t_0 = (x_m * (y + z)) / z;
	double tmp;
	if ((t_0 <= 0.0) || !(t_0 <= 5e+293)) {
		tmp = (x_m / z) * y;
	} else {
		tmp = (z * x_m) / z;
	}
	return x_s * tmp;
}

Python

x\_m = math.fabs(x)
x\_s = math.copysign(1.0, x)
def code(x_s, x_m, y, z):
	t_0 = (x_m * (y + z)) / z
	tmp = 0
	if (t_0 <= 0.0) or not (t_0 <= 5e+293):
		tmp = (x_m / z) * y
	else:
		tmp = (z * x_m) / z
	return x_s * tmp

Julia

x\_m = abs(x)
x\_s = copysign(1.0, x)
function code(x_s, x_m, y, z)
	t_0 = Float64(Float64(x_m * Float64(y + z)) / z)
	tmp = 0.0
	if ((t_0 <= 0.0) || !(t_0 <= 5e+293))
		tmp = Float64(Float64(x_m / z) * y);
	else
		tmp = Float64(Float64(z * x_m) / z);
	end
	return Float64(x_s * tmp)
end

MATLAB

x\_m = abs(x);
x\_s = sign(x) * abs(1.0);
function tmp_2 = code(x_s, x_m, y, z)
	t_0 = (x_m * (y + z)) / z;
	tmp = 0.0;
	if ((t_0 <= 0.0) || ~((t_0 <= 5e+293)))
		tmp = (x_m / z) * y;
	else
		tmp = (z * x_m) / z;
	end
	tmp_2 = x_s * tmp;
end

Wolfram

x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_, y_, z_] := Block[{t$95$0 = N[(N[(x$95$m * N[(y + z), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]}, N[(x$95$s * If[Or[LessEqual[t$95$0, 0.0], N[Not[LessEqual[t$95$0, 5e+293]], $MachinePrecision]], N[(N[(x$95$m / z), $MachinePrecision] * y), $MachinePrecision], N[(N[(z * x$95$m), $MachinePrecision] / z), $MachinePrecision]]), $MachinePrecision]]

Derivation

1. Split input into 2 regimes

2. if (/.f64 (*.f64 x (+.f64 y z)) z) < 0.0 or 5.00000000000000033e293 < (/.f64 (*.f64 x (+.f64 y z)) z)

   1. Initial program 75.6%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-+.f64 N/A

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

      2. unpow1 N/A

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

      3. metadata-eval N/A

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

      4. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + z\right)}{z} \]

      5. pow2 N/A

         \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + z\right)}{z} \]

      6. rem-sqrt-square-rev N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\left|y\right|} + z\right)}{z} \]

      7. unpow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{{z}^{1}}\right)}{z} \]

      8. metadata-eval N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + {z}^{\color{blue}{\left(\frac{2}{2}\right)}}\right)}{z} \]

      9. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\sqrt{{z}^{2}}}\right)}{z} \]

      10. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \sqrt{\color{blue}{z \cdot z}}\right)}{z} \]

      11. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\left|z\right|}\right)}{z} \]

      12. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y \cdot y}} + \left|z\right|\right)}{z} \]

      13. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{{y}^{2}}} + \left|z\right|\right)}{z} \]

      14. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      15. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{1}} + \left|z\right|\right)}{z} \]

      16. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{y} + \left|z\right|\right)}{z} \]

      17. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{1}} + \left|z\right|\right)}{z} \]

      18. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      19. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + \left|z\right|\right)}{z} \]

      20. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + \left|z\right|\right)}{z} \]

      21. sqrt-prod N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y} \cdot \sqrt{y}} + \left|z\right|\right)}{z} \]

      22. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{\sqrt{z \cdot z}}\right)}{z} \]

      23. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \sqrt{\color{blue}{{z}^{2}}}\right)}{z} \]

      24. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{{z}^{\left(\frac{2}{2}\right)}}\right)}{z} \]

      25. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + {z}^{\color{blue}{1}}\right)}{z} \]

      26. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{z}\right)}{z} \]

      27. lower-fma.f64 N/A

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

      28. lower-sqrt.f64 N/A

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

      29. lower-sqrt.f64 33.7

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

   4. Applied rewrites 33.7%

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

   5. Taylor expanded in y around -inf

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

      1. *-commutative N/A

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

      2. associate-/l* N/A

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

      3. *-commutative N/A

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

      4. unpow2 N/A

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

      5. rem-square-sqrt N/A

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

      6. associate-*r* N/A

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

      7. associate-*r* N/A

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

      8. metadata-eval N/A

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

      9. *-lft-identity N/A

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

      10. *-commutative N/A

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

      11. lower-*.f64 N/A

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

      12. lower-/.f64 49.6

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

   7. Applied rewrites 49.6%

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

   if 0.0 < (/.f64 (*.f64 x (+.f64 y z)) z) < 5.00000000000000033e293

   1. Initial program 98.9%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing

   3. Taylor expanded in y around 0

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

      1. *-commutative N/A

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

      2. lower-*.f64 53.2

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

   5. Applied rewrites 53.2%

      \[\leadsto \frac{\color{blue}{z \cdot x}}{z} \]
3. Recombined 2 regimes into one program.

4. Final simplification 50.8%

   \[\leadsto \begin{array}{l} \mathbf{if}\;\frac{x \cdot \left(y + z\right)}{z} \leq 0 \lor \neg \left(\frac{x \cdot \left(y + z\right)}{z} \leq 5 \cdot 10^{+293}\right):\\ \;\;\;\;\frac{x}{z} \cdot y\\ \mathbf{else}:\\ \;\;\;\;\frac{z \cdot x}{z}\\ \end{array} \]
5. Add Preprocessing

Alternative 3: 48.4% accurate, 0.5× speedup

Math

\[\begin{array}{l} x\_m = \left|x\right| \\ x\_s = \mathsf{copysign}\left(1, x\right) \\ x\_s \cdot \begin{array}{l} \mathbf{if}\;\frac{x\_m \cdot \left(y + z\right)}{z} \leq -1 \cdot 10^{+78}:\\ \;\;\;\;\frac{x\_m}{z} \cdot y\\ \mathbf{else}:\\ \;\;\;\;x\_m \cdot \frac{y}{z}\\ \end{array} \end{array} \]

FPCore

x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m y z)
 :precision binary64
 (*
  x_s
  (if (<= (/ (* x_m (+ y z)) z) -1e+78) (* (/ x_m z) y) (* x_m (/ y z)))))

C

x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m, double y, double z) {
	double tmp;
	if (((x_m * (y + z)) / z) <= -1e+78) {
		tmp = (x_m / z) * y;
	} else {
		tmp = x_m * (y / z);
	}
	return x_s * tmp;
}

Fortran

x\_m =     private
x\_s =     private
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_s, x_m, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x_s
    real(8), intent (in) :: x_m
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (((x_m * (y + z)) / z) <= (-1d+78)) then
        tmp = (x_m / z) * y
    else
        tmp = x_m * (y / z)
    end if
    code = x_s * tmp
end function

Java

x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m, double y, double z) {
	double tmp;
	if (((x_m * (y + z)) / z) <= -1e+78) {
		tmp = (x_m / z) * y;
	} else {
		tmp = x_m * (y / z);
	}
	return x_s * tmp;
}

Python

x\_m = math.fabs(x)
x\_s = math.copysign(1.0, x)
def code(x_s, x_m, y, z):
	tmp = 0
	if ((x_m * (y + z)) / z) <= -1e+78:
		tmp = (x_m / z) * y
	else:
		tmp = x_m * (y / z)
	return x_s * tmp

Julia

x\_m = abs(x)
x\_s = copysign(1.0, x)
function code(x_s, x_m, y, z)
	tmp = 0.0
	if (Float64(Float64(x_m * Float64(y + z)) / z) <= -1e+78)
		tmp = Float64(Float64(x_m / z) * y);
	else
		tmp = Float64(x_m * Float64(y / z));
	end
	return Float64(x_s * tmp)
end

MATLAB

x\_m = abs(x);
x\_s = sign(x) * abs(1.0);
function tmp_2 = code(x_s, x_m, y, z)
	tmp = 0.0;
	if (((x_m * (y + z)) / z) <= -1e+78)
		tmp = (x_m / z) * y;
	else
		tmp = x_m * (y / z);
	end
	tmp_2 = x_s * tmp;
end

Wolfram

x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_, y_, z_] := N[(x$95$s * If[LessEqual[N[(N[(x$95$m * N[(y + z), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision], -1e+78], N[(N[(x$95$m / z), $MachinePrecision] * y), $MachinePrecision], N[(x$95$m * N[(y / z), $MachinePrecision]), $MachinePrecision]]), $MachinePrecision]

Derivation

1. Split input into 2 regimes

2. if (/.f64 (*.f64 x (+.f64 y z)) z) < -1.00000000000000001e78

   1. Initial program 69.4%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-+.f64 N/A

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

      2. unpow1 N/A

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

      3. metadata-eval N/A

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

      4. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + z\right)}{z} \]

      5. pow2 N/A

         \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + z\right)}{z} \]

      6. rem-sqrt-square-rev N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\left|y\right|} + z\right)}{z} \]

      7. unpow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{{z}^{1}}\right)}{z} \]

      8. metadata-eval N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + {z}^{\color{blue}{\left(\frac{2}{2}\right)}}\right)}{z} \]

      9. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\sqrt{{z}^{2}}}\right)}{z} \]

      10. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \sqrt{\color{blue}{z \cdot z}}\right)}{z} \]

      11. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\left|z\right|}\right)}{z} \]

      12. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y \cdot y}} + \left|z\right|\right)}{z} \]

      13. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{{y}^{2}}} + \left|z\right|\right)}{z} \]

      14. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      15. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{1}} + \left|z\right|\right)}{z} \]

      16. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{y} + \left|z\right|\right)}{z} \]

      17. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{1}} + \left|z\right|\right)}{z} \]

      18. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      19. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + \left|z\right|\right)}{z} \]

      20. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + \left|z\right|\right)}{z} \]

      21. sqrt-prod N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y} \cdot \sqrt{y}} + \left|z\right|\right)}{z} \]

      22. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{\sqrt{z \cdot z}}\right)}{z} \]

      23. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \sqrt{\color{blue}{{z}^{2}}}\right)}{z} \]

      24. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{{z}^{\left(\frac{2}{2}\right)}}\right)}{z} \]

      25. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + {z}^{\color{blue}{1}}\right)}{z} \]

      26. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{z}\right)}{z} \]

      27. lower-fma.f64 N/A

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

      28. lower-sqrt.f64 N/A

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

      29. lower-sqrt.f64 28.3

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

   4. Applied rewrites 28.3%

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

   5. Taylor expanded in y around -inf

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

      1. *-commutative N/A

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

      2. associate-/l* N/A

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

      3. *-commutative N/A

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

      4. unpow2 N/A

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

      5. rem-square-sqrt N/A

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

      6. associate-*r* N/A

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

      7. associate-*r* N/A

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

      8. metadata-eval N/A

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

      9. *-lft-identity N/A

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

      10. *-commutative N/A

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

      11. lower-*.f64 N/A

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

      12. lower-/.f64 53.9

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

   7. Applied rewrites 53.9%

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

   if -1.00000000000000001e78 < (/.f64 (*.f64 x (+.f64 y z)) z)

   1. Initial program 88.5%

      \[\frac{x \cdot \left(y + z\right)}{z} \]
   2. Add Preprocessing
   3. Step-by-step derivation

      1. lift-+.f64 N/A

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

      2. unpow1 N/A

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

      3. metadata-eval N/A

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

      4. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + z\right)}{z} \]

      5. pow2 N/A

         \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + z\right)}{z} \]

      6. rem-sqrt-square-rev N/A

         \[\leadsto \frac{x \cdot \left(\color{blue}{\left|y\right|} + z\right)}{z} \]

      7. unpow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{{z}^{1}}\right)}{z} \]

      8. metadata-eval N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + {z}^{\color{blue}{\left(\frac{2}{2}\right)}}\right)}{z} \]

      9. sqrt-pow1 N/A

         \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\sqrt{{z}^{2}}}\right)}{z} \]

      10. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \sqrt{\color{blue}{z \cdot z}}\right)}{z} \]

      11. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\left|z\right|}\right)}{z} \]

      12. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y \cdot y}} + \left|z\right|\right)}{z} \]

      13. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{{y}^{2}}} + \left|z\right|\right)}{z} \]

      14. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      15. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{1}} + \left|z\right|\right)}{z} \]

      16. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{y} + \left|z\right|\right)}{z} \]

      17. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{1}} + \left|z\right|\right)}{z} \]

      18. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

      19. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + \left|z\right|\right)}{z} \]

      20. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + \left|z\right|\right)}{z} \]

      21. sqrt-prod N/A

          \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y} \cdot \sqrt{y}} + \left|z\right|\right)}{z} \]

      22. rem-sqrt-square-rev N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{\sqrt{z \cdot z}}\right)}{z} \]

      23. pow2 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \sqrt{\color{blue}{{z}^{2}}}\right)}{z} \]

      24. sqrt-pow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{{z}^{\left(\frac{2}{2}\right)}}\right)}{z} \]

      25. metadata-eval N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + {z}^{\color{blue}{1}}\right)}{z} \]

      26. unpow1 N/A

          \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{z}\right)}{z} \]

      27. lower-fma.f64 N/A

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

      28. lower-sqrt.f64 N/A

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

      29. lower-sqrt.f64 39.8

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

   4. Applied rewrites 39.8%

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

   5. Taylor expanded in y around -inf

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

      1. *-commutative N/A

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

      2. associate-/l* N/A

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

      3. *-commutative N/A

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

      4. unpow2 N/A

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

      5. rem-square-sqrt N/A

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

      6. associate-*r* N/A

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

      7. associate-*r* N/A

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

      8. metadata-eval N/A

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

      9. *-lft-identity N/A

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

      10. *-commutative N/A

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

      11. lower-*.f64 N/A

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

      12. lower-/.f64 44.6

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

   7. Applied rewrites 44.6%

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

   9. Applied rewrites 46.2%

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

Alternative 4: 47.2% accurate, 1.2× speedup

Math

\[\begin{array}{l} x\_m = \left|x\right| \\ x\_s = \mathsf{copysign}\left(1, x\right) \\ x\_s \cdot \left(x\_m \cdot \frac{y}{z}\right) \end{array} \]

FPCore

x\_m = (fabs.f64 x)
x\_s = (copysign.f64 #s(literal 1 binary64) x)
(FPCore (x_s x_m y z) :precision binary64 (* x_s (* x_m (/ y z))))

C

x\_m = fabs(x);
x\_s = copysign(1.0, x);
double code(double x_s, double x_m, double y, double z) {
	return x_s * (x_m * (y / z));
}

Fortran

x\_m =     private
x\_s =     private
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_s, x_m, y, z)
use fmin_fmax_functions
    real(8), intent (in) :: x_s
    real(8), intent (in) :: x_m
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x_s * (x_m * (y / z))
end function

Java

x\_m = Math.abs(x);
x\_s = Math.copySign(1.0, x);
public static double code(double x_s, double x_m, double y, double z) {
	return x_s * (x_m * (y / z));
}

Python

x\_m = math.fabs(x)
x\_s = math.copysign(1.0, x)
def code(x_s, x_m, y, z):
	return x_s * (x_m * (y / z))

Julia

x\_m = abs(x)
x\_s = copysign(1.0, x)
function code(x_s, x_m, y, z)
	return Float64(x_s * Float64(x_m * Float64(y / z)))
end

MATLAB

x\_m = abs(x);
x\_s = sign(x) * abs(1.0);
function tmp = code(x_s, x_m, y, z)
	tmp = x_s * (x_m * (y / z));
end

Wolfram

x\_m = N[Abs[x], $MachinePrecision]
x\_s = N[With[{TMP1 = Abs[1.0], TMP2 = Sign[x]}, TMP1 * If[TMP2 == 0, 1, TMP2]], $MachinePrecision]
code[x$95$s_, x$95$m_, y_, z_] := N[(x$95$s * N[(x$95$m * N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 83.3%

   \[\frac{x \cdot \left(y + z\right)}{z} \]
2. Add Preprocessing
3. Step-by-step derivation

   1. lift-+.f64 N/A

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

   2. unpow1 N/A

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

   3. metadata-eval N/A

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

   4. sqrt-pow1 N/A

      \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + z\right)}{z} \]

   5. pow2 N/A

      \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + z\right)}{z} \]

   6. rem-sqrt-square-rev N/A

      \[\leadsto \frac{x \cdot \left(\color{blue}{\left|y\right|} + z\right)}{z} \]

   7. unpow1 N/A

      \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{{z}^{1}}\right)}{z} \]

   8. metadata-eval N/A

      \[\leadsto \frac{x \cdot \left(\left|y\right| + {z}^{\color{blue}{\left(\frac{2}{2}\right)}}\right)}{z} \]

   9. sqrt-pow1 N/A

      \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\sqrt{{z}^{2}}}\right)}{z} \]

   10. pow2 N/A

       \[\leadsto \frac{x \cdot \left(\left|y\right| + \sqrt{\color{blue}{z \cdot z}}\right)}{z} \]

   11. rem-sqrt-square-rev N/A

       \[\leadsto \frac{x \cdot \left(\left|y\right| + \color{blue}{\left|z\right|}\right)}{z} \]

   12. rem-sqrt-square-rev N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y \cdot y}} + \left|z\right|\right)}{z} \]

   13. pow2 N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{{y}^{2}}} + \left|z\right|\right)}{z} \]

   14. sqrt-pow1 N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

   15. metadata-eval N/A

       \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{1}} + \left|z\right|\right)}{z} \]

   16. unpow1 N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{y} + \left|z\right|\right)}{z} \]

   17. unpow1 N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{{y}^{1}} + \left|z\right|\right)}{z} \]

   18. metadata-eval N/A

       \[\leadsto \frac{x \cdot \left({y}^{\color{blue}{\left(\frac{2}{2}\right)}} + \left|z\right|\right)}{z} \]

   19. sqrt-pow1 N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{{y}^{2}}} + \left|z\right|\right)}{z} \]

   20. pow2 N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{\color{blue}{y \cdot y}} + \left|z\right|\right)}{z} \]

   21. sqrt-prod N/A

       \[\leadsto \frac{x \cdot \left(\color{blue}{\sqrt{y} \cdot \sqrt{y}} + \left|z\right|\right)}{z} \]

   22. rem-sqrt-square-rev N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{\sqrt{z \cdot z}}\right)}{z} \]

   23. pow2 N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \sqrt{\color{blue}{{z}^{2}}}\right)}{z} \]

   24. sqrt-pow1 N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{{z}^{\left(\frac{2}{2}\right)}}\right)}{z} \]

   25. metadata-eval N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + {z}^{\color{blue}{1}}\right)}{z} \]

   26. unpow1 N/A

       \[\leadsto \frac{x \cdot \left(\sqrt{y} \cdot \sqrt{y} + \color{blue}{z}\right)}{z} \]

   27. lower-fma.f64 N/A

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

   28. lower-sqrt.f64 N/A

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

   29. lower-sqrt.f64 36.7

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

4. Applied rewrites 36.7%

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

5. Taylor expanded in y around -inf

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

   1. *-commutative N/A

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

   2. associate-/l* N/A

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

   3. *-commutative N/A

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

   4. unpow2 N/A

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

   5. rem-square-sqrt N/A

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

   6. associate-*r* N/A

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

   7. associate-*r* N/A

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

   8. metadata-eval N/A

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

   9. *-lft-identity N/A

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

   10. *-commutative N/A

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

   11. lower-*.f64 N/A

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

   12. lower-/.f64 47.2

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

7. Applied rewrites 47.2%

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

9. Applied rewrites 47.1%

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

Developer Target 1: 96.2% accurate, 0.8× speedup

Math

\[\begin{array}{l} \\ \frac{x}{\frac{z}{y + z}} \end{array} \]

FPCore

(FPCore (x y z) :precision binary64 (/ x (/ z (+ y z))))

C

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

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, z)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = x / (z / (y + z))
end function

Java

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

Python

def code(x, y, z):
	return x / (z / (y + z))

Julia

function code(x, y, z)
	return Float64(x / Float64(z / Float64(y + z)))
end

MATLAB

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

Wolfram

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

Reproduce

herbie shell --seed 2024358 
(FPCore (x y z)
  :name "Numeric.SpecFunctions:choose from math-functions-0.1.5.2"
  :precision binary64

  :alt
  (! :herbie-platform default (/ x (/ z (+ y z))))

  (/ (* x (+ y z)) z))