Diagrams.Backend.Rasterific:rasterificRadialGradient from diagrams-rasterific-1.3.1.3

Percentage Accurate: 88.1% → 99.9%

Time: 7.9s

Alternatives: 7

Speedup: 1.0×

• 20.4% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

Math

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

FPCore

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

C

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

Fortran

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

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Initial Program: 88.1% accurate, 1.0× speedup

Math

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

FPCore

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

C

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

Fortran

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

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Alternative 1: 99.9% accurate, 1.0× speedup

Math

\[\begin{array}{l} \\ y + \left(1 - y\right) \cdot \frac{x}{z} \end{array} \]

FPCore

(FPCore (x y z) :precision binary64 (+ y (* (- 1.0 y) (/ x z))))

C

double code(double x, double y, double z) {
	return y + ((1.0 - y) * (x / z));
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = y + ((1.0d0 - y) * (x / z))
end function

Java

public static double code(double x, double y, double z) {
	return y + ((1.0 - y) * (x / z));
}

Python

def code(x, y, z):
	return y + ((1.0 - y) * (x / z))

Julia

function code(x, y, z)
	return Float64(y + Float64(Float64(1.0 - y) * Float64(x / z)))
end

MATLAB

function tmp = code(x, y, z)
	tmp = y + ((1.0 - y) * (x / z));
end

Wolfram

code[x_, y_, z_] := N[(y + N[(N[(1.0 - y), $MachinePrecision] * N[(x / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]

Derivation

1. Initial program 90.8%

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

   1. +-commutative N/A

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

   2. distribute-rgt-out-- N/A

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

   3. associate-+l- N/A

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

   4. div-sub N/A

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

   5. *-commutative N/A

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

   6. associate-/l* N/A

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

   7. fmm-def N/A

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

   8. *-inverses N/A

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

   9. fma-define N/A

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

   10. *-rgt-identity N/A

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

   11. +-lowering-+.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

   12. distribute-neg-frac N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

   13. sub0-neg N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

   14. associate-+l- N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

   15. neg-sub0 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

   16. distribute-lft-neg-out N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

   17. *-commutative N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

   18. neg-mul-1 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

   19. associate-*r* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

   20. distribute-lft1-in N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

   21. associate-/l* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

   22. *-lowering-*.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

3. Simplified 99.9%

   \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
4. Add Preprocessing
5. Add Preprocessing

Alternative 2: 99.2% accurate, 0.5× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := y \cdot \left(1 - \frac{x}{z}\right)\\ \mathbf{if}\;y \leq -1:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 1:\\ \;\;\;\;y + \frac{x}{z}\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]

FPCore

(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* y (- 1.0 (/ x z)))))
   (if (<= y -1.0) t_0 (if (<= y 1.0) (+ y (/ x z)) t_0))))

C

double code(double x, double y, double z) {
	double t_0 = y * (1.0 - (x / z));
	double tmp;
	if (y <= -1.0) {
		tmp = t_0;
	} else if (y <= 1.0) {
		tmp = y + (x / z);
	} else {
		tmp = t_0;
	}
	return tmp;
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = y * (1.0d0 - (x / z))
    if (y <= (-1.0d0)) then
        tmp = t_0
    else if (y <= 1.0d0) then
        tmp = y + (x / z)
    else
        tmp = t_0
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z) {
	double t_0 = y * (1.0 - (x / z));
	double tmp;
	if (y <= -1.0) {
		tmp = t_0;
	} else if (y <= 1.0) {
		tmp = y + (x / z);
	} else {
		tmp = t_0;
	}
	return tmp;
}

Python

def code(x, y, z):
	t_0 = y * (1.0 - (x / z))
	tmp = 0
	if y <= -1.0:
		tmp = t_0
	elif y <= 1.0:
		tmp = y + (x / z)
	else:
		tmp = t_0
	return tmp

Julia

function code(x, y, z)
	t_0 = Float64(y * Float64(1.0 - Float64(x / z)))
	tmp = 0.0
	if (y <= -1.0)
		tmp = t_0;
	elseif (y <= 1.0)
		tmp = Float64(y + Float64(x / z));
	else
		tmp = t_0;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z)
	t_0 = y * (1.0 - (x / z));
	tmp = 0.0;
	if (y <= -1.0)
		tmp = t_0;
	elseif (y <= 1.0)
		tmp = y + (x / z);
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_] := Block[{t$95$0 = N[(y * N[(1.0 - N[(x / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -1.0], t$95$0, If[LessEqual[y, 1.0], N[(y + N[(x / z), $MachinePrecision]), $MachinePrecision], t$95$0]]]

Derivation

1. Split input into 2 regimes

2. if y < -1 or 1 < y

   1. Initial program 79.6%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 99.8%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in y around inf

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

      1. mul-1-neg N/A

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

      2. *-inverses N/A

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

      3. sub-neg N/A

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

      4. div-sub N/A

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

      5. *-lowering-*.f64 N/A

         \[\leadsto \mathsf{*.f64}\left(y, \color{blue}{\left(\frac{z - x}{z}\right)}\right) \]

      6. div-sub N/A

         \[\leadsto \mathsf{*.f64}\left(y, \left(\frac{z}{z} - \color{blue}{\frac{x}{z}}\right)\right) \]

      7. *-inverses N/A

         \[\leadsto \mathsf{*.f64}\left(y, \left(1 - \frac{\color{blue}{x}}{z}\right)\right) \]

      8. --lowering--.f64 N/A

         \[\leadsto \mathsf{*.f64}\left(y, \mathsf{\_.f64}\left(1, \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

      9. /-lowering-/.f64 99.4%

         \[\leadsto \mathsf{*.f64}\left(y, \mathsf{\_.f64}\left(1, \mathsf{/.f64}\left(x, \color{blue}{z}\right)\right)\right) \]

   7. Simplified 99.4%

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

   if -1 < y < 1

   1. Initial program 99.9%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 100.0%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in y around 0

      \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\frac{x}{z}\right)}\right) \]
   6. Step-by-step derivation

      1. /-lowering-/.f64 99.5%

         \[\leadsto \mathsf{+.f64}\left(y, \mathsf{/.f64}\left(x, \color{blue}{z}\right)\right) \]

   7. Simplified 99.5%

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

Alternative 3: 85.0% accurate, 0.5× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := x \cdot \frac{1 - y}{z}\\ \mathbf{if}\;x \leq -5.2 \cdot 10^{+137}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;x \leq 1.95 \cdot 10^{-11}:\\ \;\;\;\;y + \frac{x}{z}\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]

FPCore

(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* x (/ (- 1.0 y) z))))
   (if (<= x -5.2e+137) t_0 (if (<= x 1.95e-11) (+ y (/ x z)) t_0))))

C

double code(double x, double y, double z) {
	double t_0 = x * ((1.0 - y) / z);
	double tmp;
	if (x <= -5.2e+137) {
		tmp = t_0;
	} else if (x <= 1.95e-11) {
		tmp = y + (x / z);
	} else {
		tmp = t_0;
	}
	return tmp;
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = x * ((1.0d0 - y) / z)
    if (x <= (-5.2d+137)) then
        tmp = t_0
    else if (x <= 1.95d-11) then
        tmp = y + (x / z)
    else
        tmp = t_0
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z) {
	double t_0 = x * ((1.0 - y) / z);
	double tmp;
	if (x <= -5.2e+137) {
		tmp = t_0;
	} else if (x <= 1.95e-11) {
		tmp = y + (x / z);
	} else {
		tmp = t_0;
	}
	return tmp;
}

Python

def code(x, y, z):
	t_0 = x * ((1.0 - y) / z)
	tmp = 0
	if x <= -5.2e+137:
		tmp = t_0
	elif x <= 1.95e-11:
		tmp = y + (x / z)
	else:
		tmp = t_0
	return tmp

Julia

function code(x, y, z)
	t_0 = Float64(x * Float64(Float64(1.0 - y) / z))
	tmp = 0.0
	if (x <= -5.2e+137)
		tmp = t_0;
	elseif (x <= 1.95e-11)
		tmp = Float64(y + Float64(x / z));
	else
		tmp = t_0;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z)
	t_0 = x * ((1.0 - y) / z);
	tmp = 0.0;
	if (x <= -5.2e+137)
		tmp = t_0;
	elseif (x <= 1.95e-11)
		tmp = y + (x / z);
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(N[(1.0 - y), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -5.2e+137], t$95$0, If[LessEqual[x, 1.95e-11], N[(y + N[(x / z), $MachinePrecision]), $MachinePrecision], t$95$0]]]

Derivation

1. Split input into 2 regimes

2. if x < -5.1999999999999998e137 or 1.95000000000000005e-11 < x

   1. Initial program 90.7%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 99.9%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing
   5. Step-by-step derivation

      1. +-commutative N/A

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

      2. +-lowering-+.f64 N/A

         \[\leadsto \mathsf{+.f64}\left(\left(\left(1 - y\right) \cdot \frac{x}{z}\right), \color{blue}{y}\right) \]

      3. clear-num N/A

         \[\leadsto \mathsf{+.f64}\left(\left(\left(1 - y\right) \cdot \frac{1}{\frac{z}{x}}\right), y\right) \]

      4. un-div-inv N/A

         \[\leadsto \mathsf{+.f64}\left(\left(\frac{1 - y}{\frac{z}{x}}\right), y\right) \]

      5. /-lowering-/.f64 N/A

         \[\leadsto \mathsf{+.f64}\left(\mathsf{/.f64}\left(\left(1 - y\right), \left(\frac{z}{x}\right)\right), y\right) \]

      6. --lowering--.f64 N/A

         \[\leadsto \mathsf{+.f64}\left(\mathsf{/.f64}\left(\mathsf{\_.f64}\left(1, y\right), \left(\frac{z}{x}\right)\right), y\right) \]

      7. /-lowering-/.f64 99.7%

         \[\leadsto \mathsf{+.f64}\left(\mathsf{/.f64}\left(\mathsf{\_.f64}\left(1, y\right), \mathsf{/.f64}\left(z, x\right)\right), y\right) \]

   6. Applied egg-rr 99.7%

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

   7. Taylor expanded in z around 0

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

      1. associate-/l* N/A

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

      2. *-lowering-*.f64 N/A

         \[\leadsto \mathsf{*.f64}\left(x, \color{blue}{\left(\frac{1 - y}{z}\right)}\right) \]

      3. /-lowering-/.f64 N/A

         \[\leadsto \mathsf{*.f64}\left(x, \mathsf{/.f64}\left(\left(1 - y\right), \color{blue}{z}\right)\right) \]

      4. --lowering--.f64 86.9%

         \[\leadsto \mathsf{*.f64}\left(x, \mathsf{/.f64}\left(\mathsf{\_.f64}\left(1, y\right), z\right)\right) \]

   9. Simplified 86.9%

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

   if -5.1999999999999998e137 < x < 1.95000000000000005e-11

   1. Initial program 90.9%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 99.9%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in y around 0

      \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\frac{x}{z}\right)}\right) \]
   6. Step-by-step derivation

      1. /-lowering-/.f64 87.5%

         \[\leadsto \mathsf{+.f64}\left(y, \mathsf{/.f64}\left(x, \color{blue}{z}\right)\right) \]

   7. Simplified 87.5%

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

Alternative 4: 62.6% accurate, 0.6× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} t_0 := z \cdot \frac{y}{z}\\ \mathbf{if}\;y \leq -5.5 \cdot 10^{-36}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-33}:\\ \;\;\;\;\frac{x}{z}\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \end{array} \]

FPCore

(FPCore (x y z)
 :precision binary64
 (let* ((t_0 (* z (/ y z))))
   (if (<= y -5.5e-36) t_0 (if (<= y 1.7e-33) (/ x z) t_0))))

C

double code(double x, double y, double z) {
	double t_0 = z * (y / z);
	double tmp;
	if (y <= -5.5e-36) {
		tmp = t_0;
	} else if (y <= 1.7e-33) {
		tmp = x / z;
	} else {
		tmp = t_0;
	}
	return tmp;
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: t_0
    real(8) :: tmp
    t_0 = z * (y / z)
    if (y <= (-5.5d-36)) then
        tmp = t_0
    else if (y <= 1.7d-33) then
        tmp = x / z
    else
        tmp = t_0
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z) {
	double t_0 = z * (y / z);
	double tmp;
	if (y <= -5.5e-36) {
		tmp = t_0;
	} else if (y <= 1.7e-33) {
		tmp = x / z;
	} else {
		tmp = t_0;
	}
	return tmp;
}

Python

def code(x, y, z):
	t_0 = z * (y / z)
	tmp = 0
	if y <= -5.5e-36:
		tmp = t_0
	elif y <= 1.7e-33:
		tmp = x / z
	else:
		tmp = t_0
	return tmp

Julia

function code(x, y, z)
	t_0 = Float64(z * Float64(y / z))
	tmp = 0.0
	if (y <= -5.5e-36)
		tmp = t_0;
	elseif (y <= 1.7e-33)
		tmp = Float64(x / z);
	else
		tmp = t_0;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z)
	t_0 = z * (y / z);
	tmp = 0.0;
	if (y <= -5.5e-36)
		tmp = t_0;
	elseif (y <= 1.7e-33)
		tmp = x / z;
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_] := Block[{t$95$0 = N[(z * N[(y / z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -5.5e-36], t$95$0, If[LessEqual[y, 1.7e-33], N[(x / z), $MachinePrecision], t$95$0]]]

Derivation

1. Split input into 2 regimes

2. if y < -5.49999999999999984e-36 or 1.7e-33 < y

   1. Initial program 82.6%

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

   3. Taylor expanded in x around 0

      \[\leadsto \mathsf{/.f64}\left(\color{blue}{\left(y \cdot z\right)}, z\right) \]
   4. Step-by-step derivation

      1. *-commutative N/A

         \[\leadsto \mathsf{/.f64}\left(\left(z \cdot y\right), z\right) \]

      2. *-lowering-*.f64 43.7%

         \[\leadsto \mathsf{/.f64}\left(\mathsf{*.f64}\left(z, y\right), z\right) \]

   5. Simplified 43.7%

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

      1. associate-/l* N/A

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

      2. *-commutative N/A

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

      3. *-lowering-*.f64 N/A

         \[\leadsto \mathsf{*.f64}\left(\left(\frac{y}{z}\right), \color{blue}{z}\right) \]

      4. /-lowering-/.f64 57.7%

         \[\leadsto \mathsf{*.f64}\left(\mathsf{/.f64}\left(y, z\right), z\right) \]

   7. Applied egg-rr 57.7%

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

   if -5.49999999999999984e-36 < y < 1.7e-33

   1. Initial program 99.9%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 100.0%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in y around 0

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

      1. /-lowering-/.f64 73.8%

         \[\leadsto \mathsf{/.f64}\left(x, \color{blue}{z}\right) \]

   7. Simplified 73.8%

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

4. Final simplification 65.3%

   \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -5.5 \cdot 10^{-36}:\\ \;\;\;\;z \cdot \frac{y}{z}\\ \mathbf{elif}\;y \leq 1.7 \cdot 10^{-33}:\\ \;\;\;\;\frac{x}{z}\\ \mathbf{else}:\\ \;\;\;\;z \cdot \frac{y}{z}\\ \end{array} \]
5. Add Preprocessing

Alternative 5: 57.9% accurate, 0.7× speedup

Math

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -0.00185:\\ \;\;\;\;y\\ \mathbf{elif}\;z \leq 0.98:\\ \;\;\;\;\frac{x}{z}\\ \mathbf{else}:\\ \;\;\;\;y\\ \end{array} \end{array} \]

FPCore

(FPCore (x y z)
 :precision binary64
 (if (<= z -0.00185) y (if (<= z 0.98) (/ x z) y)))

C

double code(double x, double y, double z) {
	double tmp;
	if (z <= -0.00185) {
		tmp = y;
	} else if (z <= 0.98) {
		tmp = x / z;
	} else {
		tmp = y;
	}
	return tmp;
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    real(8) :: tmp
    if (z <= (-0.00185d0)) then
        tmp = y
    else if (z <= 0.98d0) then
        tmp = x / z
    else
        tmp = y
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z) {
	double tmp;
	if (z <= -0.00185) {
		tmp = y;
	} else if (z <= 0.98) {
		tmp = x / z;
	} else {
		tmp = y;
	}
	return tmp;
}

Python

def code(x, y, z):
	tmp = 0
	if z <= -0.00185:
		tmp = y
	elif z <= 0.98:
		tmp = x / z
	else:
		tmp = y
	return tmp

Julia

function code(x, y, z)
	tmp = 0.0
	if (z <= -0.00185)
		tmp = y;
	elseif (z <= 0.98)
		tmp = Float64(x / z);
	else
		tmp = y;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (z <= -0.00185)
		tmp = y;
	elseif (z <= 0.98)
		tmp = x / z;
	else
		tmp = y;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_] := If[LessEqual[z, -0.00185], y, If[LessEqual[z, 0.98], N[(x / z), $MachinePrecision], y]]

Derivation

1. Split input into 2 regimes

2. if z < -0.0018500000000000001 or 0.97999999999999998 < z

   1. Initial program 81.7%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 100.0%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in x around 0

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

   7. Simplified 70.5%

      \[\leadsto \color{blue}{y} \]

   if -0.0018500000000000001 < z < 0.97999999999999998

   1. Initial program 99.9%

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

      1. +-commutative N/A

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

      2. distribute-rgt-out-- N/A

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

      3. associate-+l- N/A

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

      4. div-sub N/A

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

      5. *-commutative N/A

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

      6. associate-/l* N/A

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

      7. fmm-def N/A

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

      8. *-inverses N/A

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

      9. fma-define N/A

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

      10. *-rgt-identity N/A

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

      11. +-lowering-+.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

      12. distribute-neg-frac N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

      13. sub0-neg N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

      14. associate-+l- N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

      15. neg-sub0 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

      16. distribute-lft-neg-out N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

      17. *-commutative N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

      18. neg-mul-1 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

      19. associate-*r* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

      20. distribute-lft1-in N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

      21. associate-/l* N/A

          \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

      22. *-lowering-*.f64 N/A

          \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

   3. Simplified 99.9%

      \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
   4. Add Preprocessing

   5. Taylor expanded in y around 0

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

      1. /-lowering-/.f64 59.7%

         \[\leadsto \mathsf{/.f64}\left(x, \color{blue}{z}\right) \]

   7. Simplified 59.7%

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

Alternative 6: 77.9% accurate, 1.8× speedup

Math

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

FPCore

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

C

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

Fortran

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

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Derivation

1. Initial program 90.8%

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

   1. +-commutative N/A

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

   2. distribute-rgt-out-- N/A

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

   3. associate-+l- N/A

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

   4. div-sub N/A

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

   5. *-commutative N/A

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

   6. associate-/l* N/A

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

   7. fmm-def N/A

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

   8. *-inverses N/A

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

   9. fma-define N/A

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

   10. *-rgt-identity N/A

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

   11. +-lowering-+.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

   12. distribute-neg-frac N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

   13. sub0-neg N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

   14. associate-+l- N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

   15. neg-sub0 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

   16. distribute-lft-neg-out N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

   17. *-commutative N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

   18. neg-mul-1 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

   19. associate-*r* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

   20. distribute-lft1-in N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

   21. associate-/l* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

   22. *-lowering-*.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

3. Simplified 99.9%

   \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
4. Add Preprocessing

5. Taylor expanded in y around 0

   \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\frac{x}{z}\right)}\right) \]
6. Step-by-step derivation

   1. /-lowering-/.f64 80.6%

      \[\leadsto \mathsf{+.f64}\left(y, \mathsf{/.f64}\left(x, \color{blue}{z}\right)\right) \]

7. Simplified 80.6%

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

Alternative 7: 40.6% accurate, 9.0× speedup

Math

\[\begin{array}{l} \\ y \end{array} \]

FPCore

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

C

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

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = y
end function

Java

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

Python

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

Julia

function code(x, y, z)
	return y
end

MATLAB

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

Wolfram

code[x_, y_, z_] := y

Derivation

1. Initial program 90.8%

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

   1. +-commutative N/A

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

   2. distribute-rgt-out-- N/A

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

   3. associate-+l- N/A

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

   4. div-sub N/A

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

   5. *-commutative N/A

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

   6. associate-/l* N/A

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

   7. fmm-def N/A

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

   8. *-inverses N/A

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

   9. fma-define N/A

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

   10. *-rgt-identity N/A

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

   11. +-lowering-+.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \color{blue}{\left(\mathsf{neg}\left(\frac{x \cdot y - x}{z}\right)\right)}\right) \]

   12. distribute-neg-frac N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\mathsf{neg}\left(\left(x \cdot y - x\right)\right)}{\color{blue}{z}}\right)\right) \]

   13. sub0-neg N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{0 - \left(x \cdot y - x\right)}{z}\right)\right) \]

   14. associate-+l- N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(0 - x \cdot y\right) + x}{z}\right)\right) \]

   15. neg-sub0 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x \cdot y\right)\right) + x}{z}\right)\right) \]

   16. distribute-lft-neg-out N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(\mathsf{neg}\left(x\right)\right) \cdot y + x}{z}\right)\right) \]

   17. *-commutative N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(\mathsf{neg}\left(x\right)\right) + x}{z}\right)\right) \]

   18. neg-mul-1 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{y \cdot \left(-1 \cdot x\right) + x}{z}\right)\right) \]

   19. associate-*r* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1\right) \cdot x + x}{z}\right)\right) \]

   20. distribute-lft1-in N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\frac{\left(y \cdot -1 + 1\right) \cdot x}{z}\right)\right) \]

   21. associate-/l* N/A

       \[\leadsto \mathsf{+.f64}\left(y, \left(\left(y \cdot -1 + 1\right) \cdot \color{blue}{\frac{x}{z}}\right)\right) \]

   22. *-lowering-*.f64 N/A

       \[\leadsto \mathsf{+.f64}\left(y, \mathsf{*.f64}\left(\left(y \cdot -1 + 1\right), \color{blue}{\left(\frac{x}{z}\right)}\right)\right) \]

3. Simplified 99.9%

   \[\leadsto \color{blue}{y + \left(1 - y\right) \cdot \frac{x}{z}} \]
4. Add Preprocessing

5. Taylor expanded in x around 0

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

7. Simplified 42.7%

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

Developer Target 1: 94.0% accurate, 0.8× speedup

Math

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

FPCore

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

C

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

Fortran

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

Java

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

Python

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

Julia

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

MATLAB

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

Wolfram

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

Reproduce

herbie shell --seed 2024145 
(FPCore (x y z)
  :name "Diagrams.Backend.Rasterific:rasterificRadialGradient from diagrams-rasterific-1.3.1.3"
  :precision binary64

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

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