Gyroid sphere

Percentage Accurate: 46.2% → 85.7%

Time: 5.0s

Alternatives: 2

Speedup: 8.6×

Specification

Math

\[\mathsf{max}\left(\sqrt{\left({\left(x \cdot 30\right)}^{2} + {\left(y \cdot 30\right)}^{2}\right) + {\left(z \cdot 30\right)}^{2}} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

FPCore

(FPCore (x y z)
  :precision binary64
  (fmax
 (-
  (sqrt
   (+
    (+ (pow (* x 30.0) 2.0) (pow (* y 30.0) 2.0))
    (pow (* z 30.0) 2.0)))
  25.0)
 (-
  (fabs
   (+
    (+
     (* (sin (* x 30.0)) (cos (* y 30.0)))
     (* (sin (* y 30.0)) (cos (* z 30.0))))
    (* (sin (* z 30.0)) (cos (* x 30.0)))))
  0.2)))

C

double code(double x, double y, double z) {
	return fmax((sqrt(((pow((x * 30.0), 2.0) + pow((y * 30.0), 2.0)) + pow((z * 30.0), 2.0))) - 25.0), (fabs((((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))) + (sin((z * 30.0)) * cos((x * 30.0))))) - 0.2));
}

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 = fmax((sqrt(((((x * 30.0d0) ** 2.0d0) + ((y * 30.0d0) ** 2.0d0)) + ((z * 30.0d0) ** 2.0d0))) - 25.0d0), (abs((((sin((x * 30.0d0)) * cos((y * 30.0d0))) + (sin((y * 30.0d0)) * cos((z * 30.0d0)))) + (sin((z * 30.0d0)) * cos((x * 30.0d0))))) - 0.2d0))
end function

Java

public static double code(double x, double y, double z) {
	return fmax((Math.sqrt(((Math.pow((x * 30.0), 2.0) + Math.pow((y * 30.0), 2.0)) + Math.pow((z * 30.0), 2.0))) - 25.0), (Math.abs((((Math.sin((x * 30.0)) * Math.cos((y * 30.0))) + (Math.sin((y * 30.0)) * Math.cos((z * 30.0)))) + (Math.sin((z * 30.0)) * Math.cos((x * 30.0))))) - 0.2));
}

Python

def code(x, y, z):
	return fmax((math.sqrt(((math.pow((x * 30.0), 2.0) + math.pow((y * 30.0), 2.0)) + math.pow((z * 30.0), 2.0))) - 25.0), (math.fabs((((math.sin((x * 30.0)) * math.cos((y * 30.0))) + (math.sin((y * 30.0)) * math.cos((z * 30.0)))) + (math.sin((z * 30.0)) * math.cos((x * 30.0))))) - 0.2))

Julia

function code(x, y, z)
	return fmax(Float64(sqrt(Float64(Float64((Float64(x * 30.0) ^ 2.0) + (Float64(y * 30.0) ^ 2.0)) + (Float64(z * 30.0) ^ 2.0))) - 25.0), Float64(abs(Float64(Float64(Float64(sin(Float64(x * 30.0)) * cos(Float64(y * 30.0))) + Float64(sin(Float64(y * 30.0)) * cos(Float64(z * 30.0)))) + Float64(sin(Float64(z * 30.0)) * cos(Float64(x * 30.0))))) - 0.2))
end

MATLAB

function tmp = code(x, y, z)
	tmp = max((sqrt(((((x * 30.0) ^ 2.0) + ((y * 30.0) ^ 2.0)) + ((z * 30.0) ^ 2.0))) - 25.0), (abs((((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))) + (sin((z * 30.0)) * cos((x * 30.0))))) - 0.2));
end

Wolfram

code[x_, y_, z_] := N[Max[N[(N[Sqrt[N[(N[(N[Power[N[(x * 30.0), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(y * 30.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[Power[N[(z * 30.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(N[(N[(N[Sin[N[(x * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(y * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(N[Sin[N[(y * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(z * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[Sin[N[(z * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(x * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]

Initial Program: 46.2% accurate, 1.0× speedup

Math

\[\mathsf{max}\left(\sqrt{\left({\left(x \cdot 30\right)}^{2} + {\left(y \cdot 30\right)}^{2}\right) + {\left(z \cdot 30\right)}^{2}} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

FPCore

(FPCore (x y z)
  :precision binary64
  (fmax
 (-
  (sqrt
   (+
    (+ (pow (* x 30.0) 2.0) (pow (* y 30.0) 2.0))
    (pow (* z 30.0) 2.0)))
  25.0)
 (-
  (fabs
   (+
    (+
     (* (sin (* x 30.0)) (cos (* y 30.0)))
     (* (sin (* y 30.0)) (cos (* z 30.0))))
    (* (sin (* z 30.0)) (cos (* x 30.0)))))
  0.2)))

C

double code(double x, double y, double z) {
	return fmax((sqrt(((pow((x * 30.0), 2.0) + pow((y * 30.0), 2.0)) + pow((z * 30.0), 2.0))) - 25.0), (fabs((((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))) + (sin((z * 30.0)) * cos((x * 30.0))))) - 0.2));
}

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 = fmax((sqrt(((((x * 30.0d0) ** 2.0d0) + ((y * 30.0d0) ** 2.0d0)) + ((z * 30.0d0) ** 2.0d0))) - 25.0d0), (abs((((sin((x * 30.0d0)) * cos((y * 30.0d0))) + (sin((y * 30.0d0)) * cos((z * 30.0d0)))) + (sin((z * 30.0d0)) * cos((x * 30.0d0))))) - 0.2d0))
end function

Java

public static double code(double x, double y, double z) {
	return fmax((Math.sqrt(((Math.pow((x * 30.0), 2.0) + Math.pow((y * 30.0), 2.0)) + Math.pow((z * 30.0), 2.0))) - 25.0), (Math.abs((((Math.sin((x * 30.0)) * Math.cos((y * 30.0))) + (Math.sin((y * 30.0)) * Math.cos((z * 30.0)))) + (Math.sin((z * 30.0)) * Math.cos((x * 30.0))))) - 0.2));
}

Python

def code(x, y, z):
	return fmax((math.sqrt(((math.pow((x * 30.0), 2.0) + math.pow((y * 30.0), 2.0)) + math.pow((z * 30.0), 2.0))) - 25.0), (math.fabs((((math.sin((x * 30.0)) * math.cos((y * 30.0))) + (math.sin((y * 30.0)) * math.cos((z * 30.0)))) + (math.sin((z * 30.0)) * math.cos((x * 30.0))))) - 0.2))

Julia

function code(x, y, z)
	return fmax(Float64(sqrt(Float64(Float64((Float64(x * 30.0) ^ 2.0) + (Float64(y * 30.0) ^ 2.0)) + (Float64(z * 30.0) ^ 2.0))) - 25.0), Float64(abs(Float64(Float64(Float64(sin(Float64(x * 30.0)) * cos(Float64(y * 30.0))) + Float64(sin(Float64(y * 30.0)) * cos(Float64(z * 30.0)))) + Float64(sin(Float64(z * 30.0)) * cos(Float64(x * 30.0))))) - 0.2))
end

MATLAB

function tmp = code(x, y, z)
	tmp = max((sqrt(((((x * 30.0) ^ 2.0) + ((y * 30.0) ^ 2.0)) + ((z * 30.0) ^ 2.0))) - 25.0), (abs((((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))) + (sin((z * 30.0)) * cos((x * 30.0))))) - 0.2));
end

Wolfram

code[x_, y_, z_] := N[Max[N[(N[Sqrt[N[(N[(N[Power[N[(x * 30.0), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(y * 30.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[Power[N[(z * 30.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(N[(N[(N[Sin[N[(x * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(y * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(N[Sin[N[(y * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(z * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[Sin[N[(z * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(x * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]

Alternative 1: 85.7% accurate, 3.1× speedup

Math

\[\begin{array}{l} t_0 := \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(30 \cdot z\right)\right| - 0.2\right)\\ \mathbf{if}\;y \leq -8 \cdot 10^{+73}:\\ \;\;\;\;t\_0\\ \mathbf{elif}\;y \leq 3.2 \cdot 10^{+83}:\\ \;\;\;\;\mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - 0.2\right)\\ \mathbf{else}:\\ \;\;\;\;t\_0\\ \end{array} \]

FPCore

(FPCore (x y z)
  :precision binary64
  (let* ((t_0
        (fmax
         (- (* -30.0 z) 25.0)
         (-
          (fabs (+ (+ (sin (* 30.0 x)) (* 30.0 y)) (sin (* 30.0 z))))
          0.2))))
  (if (<= y -8e+73)
    t_0
    (if (<= y 3.2e+83)
      (fmax
       (- (* -30.0 x) 25.0)
       (- (fabs (+ (* 30.0 x) (* 30.0 z))) 0.2))
      t_0))))

C

double code(double x, double y, double z) {
	double t_0 = fmax(((-30.0 * z) - 25.0), (fabs(((sin((30.0 * x)) + (30.0 * y)) + sin((30.0 * z)))) - 0.2));
	double tmp;
	if (y <= -8e+73) {
		tmp = t_0;
	} else if (y <= 3.2e+83) {
		tmp = fmax(((-30.0 * x) - 25.0), (fabs(((30.0 * x) + (30.0 * z))) - 0.2));
	} else {
		tmp = t_0;
	}
	return tmp;
}

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
    real(8) :: t_0
    real(8) :: tmp
    t_0 = fmax((((-30.0d0) * z) - 25.0d0), (abs(((sin((30.0d0 * x)) + (30.0d0 * y)) + sin((30.0d0 * z)))) - 0.2d0))
    if (y <= (-8d+73)) then
        tmp = t_0
    else if (y <= 3.2d+83) then
        tmp = fmax((((-30.0d0) * x) - 25.0d0), (abs(((30.0d0 * x) + (30.0d0 * z))) - 0.2d0))
    else
        tmp = t_0
    end if
    code = tmp
end function

Java

public static double code(double x, double y, double z) {
	double t_0 = fmax(((-30.0 * z) - 25.0), (Math.abs(((Math.sin((30.0 * x)) + (30.0 * y)) + Math.sin((30.0 * z)))) - 0.2));
	double tmp;
	if (y <= -8e+73) {
		tmp = t_0;
	} else if (y <= 3.2e+83) {
		tmp = fmax(((-30.0 * x) - 25.0), (Math.abs(((30.0 * x) + (30.0 * z))) - 0.2));
	} else {
		tmp = t_0;
	}
	return tmp;
}

Python

def code(x, y, z):
	t_0 = fmax(((-30.0 * z) - 25.0), (math.fabs(((math.sin((30.0 * x)) + (30.0 * y)) + math.sin((30.0 * z)))) - 0.2))
	tmp = 0
	if y <= -8e+73:
		tmp = t_0
	elif y <= 3.2e+83:
		tmp = fmax(((-30.0 * x) - 25.0), (math.fabs(((30.0 * x) + (30.0 * z))) - 0.2))
	else:
		tmp = t_0
	return tmp

Julia

function code(x, y, z)
	t_0 = fmax(Float64(Float64(-30.0 * z) - 25.0), Float64(abs(Float64(Float64(sin(Float64(30.0 * x)) + Float64(30.0 * y)) + sin(Float64(30.0 * z)))) - 0.2))
	tmp = 0.0
	if (y <= -8e+73)
		tmp = t_0;
	elseif (y <= 3.2e+83)
		tmp = fmax(Float64(Float64(-30.0 * x) - 25.0), Float64(abs(Float64(Float64(30.0 * x) + Float64(30.0 * z))) - 0.2));
	else
		tmp = t_0;
	end
	return tmp
end

MATLAB

function tmp_2 = code(x, y, z)
	t_0 = max(((-30.0 * z) - 25.0), (abs(((sin((30.0 * x)) + (30.0 * y)) + sin((30.0 * z)))) - 0.2));
	tmp = 0.0;
	if (y <= -8e+73)
		tmp = t_0;
	elseif (y <= 3.2e+83)
		tmp = max(((-30.0 * x) - 25.0), (abs(((30.0 * x) + (30.0 * z))) - 0.2));
	else
		tmp = t_0;
	end
	tmp_2 = tmp;
end

Wolfram

code[x_, y_, z_] := Block[{t$95$0 = N[Max[N[(N[(-30.0 * z), $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(N[(N[Sin[N[(30.0 * x), $MachinePrecision]], $MachinePrecision] + N[(30.0 * y), $MachinePrecision]), $MachinePrecision] + N[Sin[N[(30.0 * z), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[y, -8e+73], t$95$0, If[LessEqual[y, 3.2e+83], N[Max[N[(N[(-30.0 * x), $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(N[(30.0 * x), $MachinePrecision] + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], t$95$0]]]

Derivation

1. Split input into 2 regimes

2. if y < -7.9999999999999999e73 or 3.1999999999999999e83 < y

   1. Initial program 46.2%

      \[\mathsf{max}\left(\sqrt{\left({\left(x \cdot 30\right)}^{2} + {\left(y \cdot 30\right)}^{2}\right) + {\left(z \cdot 30\right)}^{2}} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   2. Taylor expanded in z around -inf

      \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot z} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]
   3. Step-by-step derivation

      1. lower-*.f64 30.3%

         \[\leadsto \mathsf{max}\left(-30 \cdot \color{blue}{z} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   4. Applied rewrites 30.3%

      \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot z} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   5. Taylor expanded in y around 0

      \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\color{blue}{\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right)} + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]
   6. Step-by-step derivation

      1. lower-+.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + \color{blue}{30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)}\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      2. lower-sin.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + \color{blue}{30} \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      4. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \color{blue}{\left(y \cdot \cos \left(30 \cdot z\right)\right)}\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      5. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \color{blue}{\cos \left(30 \cdot z\right)}\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      6. lower-cos.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      7. lower-*.f64 49.3%

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   7. Applied rewrites 49.3%

      \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\color{blue}{\left(\sin \left(30 \cdot x\right) + 30 \cdot \left(y \cdot \cos \left(30 \cdot z\right)\right)\right)} + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   8. Taylor expanded in z around 0

      \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + \color{blue}{30 \cdot y}\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]
   9. Step-by-step derivation

      1. lower-+.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot \color{blue}{y}\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      2. lower-sin.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - \frac{1}{5}\right) \]

      4. lower-*.f64 57.6%

         \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   10. Applied rewrites 57.6%

       \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + \color{blue}{30 \cdot y}\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   11. Taylor expanded in x around 0

       \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \color{blue}{\sin \left(30 \cdot z\right)}\right| - 0.2\right) \]
   12. Step-by-step derivation

       1. lower-sin.f64 N/A

          \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

       2. lower-*.f64 57.5%

          \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \sin \left(30 \cdot z\right)\right| - 0.2\right) \]

   13. Applied rewrites 57.5%

       \[\leadsto \mathsf{max}\left(-30 \cdot z - 25, \left|\left(\sin \left(30 \cdot x\right) + 30 \cdot y\right) + \color{blue}{\sin \left(30 \cdot z\right)}\right| - 0.2\right) \]

   if -7.9999999999999999e73 < y < 3.1999999999999999e83

   1. Initial program 46.2%

      \[\mathsf{max}\left(\sqrt{\left({\left(x \cdot 30\right)}^{2} + {\left(y \cdot 30\right)}^{2}\right) + {\left(z \cdot 30\right)}^{2}} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   2. Taylor expanded in x around -inf

      \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]
   3. Step-by-step derivation

      1. lower-*.f64 30.1%

         \[\leadsto \mathsf{max}\left(-30 \cdot \color{blue}{x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   4. Applied rewrites 30.1%

      \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

   5. Taylor expanded in y around 0

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\color{blue}{\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - 0.2\right) \]
   6. Step-by-step derivation

      1. lower-+.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \color{blue}{\cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

      2. lower-sin.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \color{blue}{\cos \left(30 \cdot x\right)} \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \color{blue}{\left(30 \cdot x\right)} \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

      4. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \color{blue}{\sin \left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

      5. lower-cos.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \color{blue}{\left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

      6. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(\color{blue}{30} \cdot z\right)\right| - \frac{1}{5}\right) \]

      7. lower-sin.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

      8. lower-*.f64 29.3%

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)\right| - 0.2\right) \]

   7. Applied rewrites 29.3%

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\color{blue}{\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - 0.2\right) \]

   8. Taylor expanded in x around 0

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + \color{blue}{30 \cdot x}\right| - 0.2\right) \]
   9. Step-by-step derivation

      1. lower-+.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot \color{blue}{x}\right| - \frac{1}{5}\right) \]

      2. lower-sin.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - \frac{1}{5}\right) \]

      3. lower-*.f64 N/A

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - \frac{1}{5}\right) \]

      4. lower-*.f64 43.2%

         \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - 0.2\right) \]

   10. Applied rewrites 43.2%

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + \color{blue}{30 \cdot x}\right| - 0.2\right) \]

   11. Taylor expanded in z around 0

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot \color{blue}{z}\right| - 0.2\right) \]
   12. Step-by-step derivation

       1. lower-+.f64 N/A

          \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - \frac{1}{5}\right) \]

       2. lower-*.f64 N/A

          \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - \frac{1}{5}\right) \]

       3. lower-*.f64 70.2%

          \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - 0.2\right) \]

   13. Applied rewrites 70.2%

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot \color{blue}{z}\right| - 0.2\right) \]
3. Recombined 2 regimes into one program.
4. Add Preprocessing

Alternative 2: 70.2% accurate, 8.6× speedup

Math

\[\mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - 0.2\right) \]

FPCore

(FPCore (x y z)
  :precision binary64
  (fmax (- (* -30.0 x) 25.0) (- (fabs (+ (* 30.0 x) (* 30.0 z))) 0.2)))

C

double code(double x, double y, double z) {
	return fmax(((-30.0 * x) - 25.0), (fabs(((30.0 * x) + (30.0 * z))) - 0.2));
}

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 = fmax((((-30.0d0) * x) - 25.0d0), (abs(((30.0d0 * x) + (30.0d0 * z))) - 0.2d0))
end function

Java

public static double code(double x, double y, double z) {
	return fmax(((-30.0 * x) - 25.0), (Math.abs(((30.0 * x) + (30.0 * z))) - 0.2));
}

Python

def code(x, y, z):
	return fmax(((-30.0 * x) - 25.0), (math.fabs(((30.0 * x) + (30.0 * z))) - 0.2))

Julia

function code(x, y, z)
	return fmax(Float64(Float64(-30.0 * x) - 25.0), Float64(abs(Float64(Float64(30.0 * x) + Float64(30.0 * z))) - 0.2))
end

MATLAB

function tmp = code(x, y, z)
	tmp = max(((-30.0 * x) - 25.0), (abs(((30.0 * x) + (30.0 * z))) - 0.2));
end

Wolfram

code[x_, y_, z_] := N[Max[N[(N[(-30.0 * x), $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(N[(30.0 * x), $MachinePrecision] + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]

Derivation

1. Initial program 46.2%

   \[\mathsf{max}\left(\sqrt{\left({\left(x \cdot 30\right)}^{2} + {\left(y \cdot 30\right)}^{2}\right) + {\left(z \cdot 30\right)}^{2}} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

2. Taylor expanded in x around -inf

   \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]
3. Step-by-step derivation

   1. lower-*.f64 30.1%

      \[\leadsto \mathsf{max}\left(-30 \cdot \color{blue}{x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

4. Applied rewrites 30.1%

   \[\leadsto \mathsf{max}\left(\color{blue}{-30 \cdot x} - 25, \left|\left(\sin \left(x \cdot 30\right) \cdot \cos \left(y \cdot 30\right) + \sin \left(y \cdot 30\right) \cdot \cos \left(z \cdot 30\right)\right) + \sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right)\right| - 0.2\right) \]

5. Taylor expanded in y around 0

   \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\color{blue}{\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - 0.2\right) \]
6. Step-by-step derivation

   1. lower-+.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \color{blue}{\cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

   2. lower-sin.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \color{blue}{\cos \left(30 \cdot x\right)} \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

   3. lower-*.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \color{blue}{\left(30 \cdot x\right)} \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

   4. lower-*.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \color{blue}{\sin \left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

   5. lower-cos.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \color{blue}{\left(30 \cdot z\right)}\right| - \frac{1}{5}\right) \]

   6. lower-*.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(\color{blue}{30} \cdot z\right)\right| - \frac{1}{5}\right) \]

   7. lower-sin.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)\right| - \frac{1}{5}\right) \]

   8. lower-*.f64 29.3%

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)\right| - 0.2\right) \]

7. Applied rewrites 29.3%

   \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\color{blue}{\sin \left(30 \cdot x\right) + \cos \left(30 \cdot x\right) \cdot \sin \left(30 \cdot z\right)}\right| - 0.2\right) \]

8. Taylor expanded in x around 0

   \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + \color{blue}{30 \cdot x}\right| - 0.2\right) \]
9. Step-by-step derivation

   1. lower-+.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot \color{blue}{x}\right| - \frac{1}{5}\right) \]

   2. lower-sin.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - \frac{1}{5}\right) \]

   3. lower-*.f64 N/A

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - \frac{1}{5}\right) \]

   4. lower-*.f64 43.2%

      \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + 30 \cdot x\right| - 0.2\right) \]

10. Applied rewrites 43.2%

    \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot z\right) + \color{blue}{30 \cdot x}\right| - 0.2\right) \]

11. Taylor expanded in z around 0

    \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot \color{blue}{z}\right| - 0.2\right) \]
12. Step-by-step derivation

    1. lower-+.f64 N/A

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - \frac{1}{5}\right) \]

    2. lower-*.f64 N/A

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - \frac{1}{5}\right) \]

    3. lower-*.f64 70.2%

       \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot z\right| - 0.2\right) \]

13. Applied rewrites 70.2%

    \[\leadsto \mathsf{max}\left(-30 \cdot x - 25, \left|30 \cdot x + 30 \cdot \color{blue}{z}\right| - 0.2\right) \]
14. Add Preprocessing

Reproduce

herbie shell --seed 2025258 
(FPCore (x y z)
  :name "Gyroid sphere"
  :precision binary64
  (fmax (- (sqrt (+ (+ (pow (* x 30.0) 2.0) (pow (* y 30.0) 2.0)) (pow (* z 30.0) 2.0))) 25.0) (- (fabs (+ (+ (* (sin (* x 30.0)) (cos (* y 30.0))) (* (sin (* y 30.0)) (cos (* z 30.0)))) (* (sin (* z 30.0)) (cos (* x 30.0))))) 0.2)))