
(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)))
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));
}
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
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));
}
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))
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
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
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]
\begin{array}{l}
\\
\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)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(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)))
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));
}
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
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));
}
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))
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
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
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]
\begin{array}{l}
\\
\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)
\end{array}
(FPCore (x y z) :precision binary64 (fmax (- (hypot (* z 30.0) (* y 30.0)) 25.0) (- (fabs (* 30.0 x)) 0.2)))
double code(double x, double y, double z) {
return fmax((hypot((z * 30.0), (y * 30.0)) - 25.0), (fabs((30.0 * x)) - 0.2));
}
public static double code(double x, double y, double z) {
return fmax((Math.hypot((z * 30.0), (y * 30.0)) - 25.0), (Math.abs((30.0 * x)) - 0.2));
}
def code(x, y, z): return fmax((math.hypot((z * 30.0), (y * 30.0)) - 25.0), (math.fabs((30.0 * x)) - 0.2))
function code(x, y, z) return fmax(Float64(hypot(Float64(z * 30.0), Float64(y * 30.0)) - 25.0), Float64(abs(Float64(30.0 * x)) - 0.2)) end
function tmp = code(x, y, z) tmp = max((hypot((z * 30.0), (y * 30.0)) - 25.0), (abs((30.0 * x)) - 0.2)); end
code[x_, y_, z_] := N[Max[N[(N[Sqrt[N[(z * 30.0), $MachinePrecision] ^ 2 + N[(y * 30.0), $MachinePrecision] ^ 2], $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[(30.0 * x), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\mathsf{max}\left(\mathsf{hypot}\left(z \cdot 30, y \cdot 30\right) - 25, \left|30 \cdot x\right| - 0.2\right)
\end{array}
Initial program 41.7%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
lower-hypot.f64N/A
lift-*.f64N/A
lift-*.f6472.6
Applied rewrites72.6%
Taylor expanded in y around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
*-commutativeN/A
lift-sin.f64N/A
lift-*.f64N/A
*-commutativeN/A
lift-cos.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lift-sin.f64N/A
*-commutativeN/A
lower-*.f6472.1
Applied rewrites72.1%
Taylor expanded in z around 0
lift-sin.f64N/A
lift-*.f6472.1
Applied rewrites72.1%
Taylor expanded in x around 0
lift-*.f6498.7
Applied rewrites98.7%
(FPCore (x y z)
:precision binary64
(if (<=
(fmax
(-
(sqrt
(+
(+ (pow (* x 30.0) 2.0) (pow (* y 30.0) 2.0))
(pow (* z 30.0) 2.0)))
25.0)
(-
(fabs
(+
(* (sin (* z 30.0)) (cos (* x 30.0)))
(+
(* (sin (* x 30.0)) (cos (* y 30.0)))
(* (sin (* y 30.0)) (cos (* z 30.0))))))
0.2))
5000.0)
(fmax (- (* -30.0 y) 25.0) (- (fabs (sin (* 30.0 x))) 0.2))
(fmax (* y 30.0) (- (fabs (fma 30.0 x (fma 30.0 y (* 30.0 z)))) 0.2))))
double code(double x, double y, double z) {
double tmp;
if (fmax((sqrt(((pow((x * 30.0), 2.0) + pow((y * 30.0), 2.0)) + pow((z * 30.0), 2.0))) - 25.0), (fabs(((sin((z * 30.0)) * cos((x * 30.0))) + ((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))))) - 0.2)) <= 5000.0) {
tmp = fmax(((-30.0 * y) - 25.0), (fabs(sin((30.0 * x))) - 0.2));
} else {
tmp = fmax((y * 30.0), (fabs(fma(30.0, x, fma(30.0, y, (30.0 * z)))) - 0.2));
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (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(sin(Float64(z * 30.0)) * cos(Float64(x * 30.0))) + Float64(Float64(sin(Float64(x * 30.0)) * cos(Float64(y * 30.0))) + Float64(sin(Float64(y * 30.0)) * cos(Float64(z * 30.0)))))) - 0.2)) <= 5000.0) tmp = fmax(Float64(Float64(-30.0 * y) - 25.0), Float64(abs(sin(Float64(30.0 * x))) - 0.2)); else tmp = fmax(Float64(y * 30.0), Float64(abs(fma(30.0, x, fma(30.0, y, Float64(30.0 * z)))) - 0.2)); end return tmp end
code[x_, y_, z_] := If[LessEqual[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[Sin[N[(z * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(x * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + 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]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], 5000.0], N[Max[N[(N[(-30.0 * y), $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[Sin[N[(30.0 * x), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], N[Max[N[(y * 30.0), $MachinePrecision], N[(N[Abs[N[(30.0 * x + N[(30.0 * y + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\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|\sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right) + \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)\right| - 0.2\right) \leq 5000:\\
\;\;\;\;\mathsf{max}\left(-30 \cdot y - 25, \left|\sin \left(30 \cdot x\right)\right| - 0.2\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{max}\left(y \cdot 30, \left|\mathsf{fma}\left(30, x, \mathsf{fma}\left(30, y, 30 \cdot z\right)\right)\right| - 0.2\right)\\
\end{array}
\end{array}
if (fmax.f64 (-.f64 (sqrt.f64 (+.f64 (+.f64 (pow.f64 (*.f64 x #s(literal 30 binary64)) #s(literal 2 binary64)) (pow.f64 (*.f64 y #s(literal 30 binary64)) #s(literal 2 binary64))) (pow.f64 (*.f64 z #s(literal 30 binary64)) #s(literal 2 binary64)))) #s(literal 25 binary64)) (-.f64 (fabs.f64 (+.f64 (+.f64 (*.f64 (sin.f64 (*.f64 x #s(literal 30 binary64))) (cos.f64 (*.f64 y #s(literal 30 binary64)))) (*.f64 (sin.f64 (*.f64 y #s(literal 30 binary64))) (cos.f64 (*.f64 z #s(literal 30 binary64))))) (*.f64 (sin.f64 (*.f64 z #s(literal 30 binary64))) (cos.f64 (*.f64 x #s(literal 30 binary64)))))) #s(literal 1/5 binary64))) < 5e3Initial program 99.9%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
lower-hypot.f64N/A
lift-*.f64N/A
lift-*.f6499.9
Applied rewrites99.9%
Taylor expanded in y around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
*-commutativeN/A
lift-sin.f64N/A
lift-*.f64N/A
*-commutativeN/A
lift-cos.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lift-sin.f64N/A
*-commutativeN/A
lower-*.f6495.0
Applied rewrites95.0%
Taylor expanded in z around 0
lift-sin.f64N/A
lift-*.f6495.0
Applied rewrites95.0%
Taylor expanded in y around -inf
lower-*.f6495.0
Applied rewrites95.0%
if 5e3 < (fmax.f64 (-.f64 (sqrt.f64 (+.f64 (+.f64 (pow.f64 (*.f64 x #s(literal 30 binary64)) #s(literal 2 binary64)) (pow.f64 (*.f64 y #s(literal 30 binary64)) #s(literal 2 binary64))) (pow.f64 (*.f64 z #s(literal 30 binary64)) #s(literal 2 binary64)))) #s(literal 25 binary64)) (-.f64 (fabs.f64 (+.f64 (+.f64 (*.f64 (sin.f64 (*.f64 x #s(literal 30 binary64))) (cos.f64 (*.f64 y #s(literal 30 binary64)))) (*.f64 (sin.f64 (*.f64 y #s(literal 30 binary64))) (cos.f64 (*.f64 z #s(literal 30 binary64))))) (*.f64 (sin.f64 (*.f64 z #s(literal 30 binary64))) (cos.f64 (*.f64 x #s(literal 30 binary64)))))) #s(literal 1/5 binary64))) Initial program 35.1%
Taylor expanded in y around inf
*-commutativeN/A
lift-*.f6419.3
Applied rewrites19.3%
Taylor expanded in x around 0
+-commutativeN/A
lower-+.f64N/A
Applied rewrites41.3%
Taylor expanded in z around 0
lower-+.f64N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6474.3
Applied rewrites74.3%
Taylor expanded in y around 0
lower-fma.f64N/A
lower-fma.f64N/A
lower-*.f6496.5
Applied rewrites96.5%
Final simplification96.3%
(FPCore (x y z)
:precision binary64
(if (<=
(fmax
(-
(sqrt
(+
(+ (pow (* x 30.0) 2.0) (pow (* y 30.0) 2.0))
(pow (* z 30.0) 2.0)))
25.0)
(-
(fabs
(+
(* (sin (* z 30.0)) (cos (* x 30.0)))
(+
(* (sin (* x 30.0)) (cos (* y 30.0)))
(* (sin (* y 30.0)) (cos (* z 30.0))))))
0.2))
-0.1)
(fmax (- (* -30.0 x) 25.0) (- (fabs (sin (* 30.0 x))) 0.2))
(fmax (* y 30.0) (- (fabs (fma 30.0 x (fma 30.0 y (* 30.0 z)))) 0.2))))
double code(double x, double y, double z) {
double tmp;
if (fmax((sqrt(((pow((x * 30.0), 2.0) + pow((y * 30.0), 2.0)) + pow((z * 30.0), 2.0))) - 25.0), (fabs(((sin((z * 30.0)) * cos((x * 30.0))) + ((sin((x * 30.0)) * cos((y * 30.0))) + (sin((y * 30.0)) * cos((z * 30.0)))))) - 0.2)) <= -0.1) {
tmp = fmax(((-30.0 * x) - 25.0), (fabs(sin((30.0 * x))) - 0.2));
} else {
tmp = fmax((y * 30.0), (fabs(fma(30.0, x, fma(30.0, y, (30.0 * z)))) - 0.2));
}
return tmp;
}
function code(x, y, z) tmp = 0.0 if (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(sin(Float64(z * 30.0)) * cos(Float64(x * 30.0))) + Float64(Float64(sin(Float64(x * 30.0)) * cos(Float64(y * 30.0))) + Float64(sin(Float64(y * 30.0)) * cos(Float64(z * 30.0)))))) - 0.2)) <= -0.1) tmp = fmax(Float64(Float64(-30.0 * x) - 25.0), Float64(abs(sin(Float64(30.0 * x))) - 0.2)); else tmp = fmax(Float64(y * 30.0), Float64(abs(fma(30.0, x, fma(30.0, y, Float64(30.0 * z)))) - 0.2)); end return tmp end
code[x_, y_, z_] := If[LessEqual[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[Sin[N[(z * 30.0), $MachinePrecision]], $MachinePrecision] * N[Cos[N[(x * 30.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + 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]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], -0.1], N[Max[N[(N[(-30.0 * x), $MachinePrecision] - 25.0), $MachinePrecision], N[(N[Abs[N[Sin[N[(30.0 * x), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], N[Max[N[(y * 30.0), $MachinePrecision], N[(N[Abs[N[(30.0 * x + N[(30.0 * y + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;\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|\sin \left(z \cdot 30\right) \cdot \cos \left(x \cdot 30\right) + \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)\right| - 0.2\right) \leq -0.1:\\
\;\;\;\;\mathsf{max}\left(-30 \cdot x - 25, \left|\sin \left(30 \cdot x\right)\right| - 0.2\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{max}\left(y \cdot 30, \left|\mathsf{fma}\left(30, x, \mathsf{fma}\left(30, y, 30 \cdot z\right)\right)\right| - 0.2\right)\\
\end{array}
\end{array}
if (fmax.f64 (-.f64 (sqrt.f64 (+.f64 (+.f64 (pow.f64 (*.f64 x #s(literal 30 binary64)) #s(literal 2 binary64)) (pow.f64 (*.f64 y #s(literal 30 binary64)) #s(literal 2 binary64))) (pow.f64 (*.f64 z #s(literal 30 binary64)) #s(literal 2 binary64)))) #s(literal 25 binary64)) (-.f64 (fabs.f64 (+.f64 (+.f64 (*.f64 (sin.f64 (*.f64 x #s(literal 30 binary64))) (cos.f64 (*.f64 y #s(literal 30 binary64)))) (*.f64 (sin.f64 (*.f64 y #s(literal 30 binary64))) (cos.f64 (*.f64 z #s(literal 30 binary64))))) (*.f64 (sin.f64 (*.f64 z #s(literal 30 binary64))) (cos.f64 (*.f64 x #s(literal 30 binary64)))))) #s(literal 1/5 binary64))) < -0.10000000000000001Initial program 99.9%
Taylor expanded in x around 0
+-commutativeN/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
*-commutativeN/A
metadata-evalN/A
unpow-prod-downN/A
unpow2N/A
lower-hypot.f64N/A
lift-*.f64N/A
lift-*.f6499.9
Applied rewrites99.9%
Taylor expanded in y around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
*-commutativeN/A
lift-sin.f64N/A
lift-*.f64N/A
*-commutativeN/A
lift-cos.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lift-sin.f64N/A
*-commutativeN/A
lower-*.f6494.6
Applied rewrites94.6%
Taylor expanded in z around 0
lift-sin.f64N/A
lift-*.f6494.6
Applied rewrites94.6%
Taylor expanded in x around -inf
lift-*.f6494.6
Applied rewrites94.6%
if -0.10000000000000001 < (fmax.f64 (-.f64 (sqrt.f64 (+.f64 (+.f64 (pow.f64 (*.f64 x #s(literal 30 binary64)) #s(literal 2 binary64)) (pow.f64 (*.f64 y #s(literal 30 binary64)) #s(literal 2 binary64))) (pow.f64 (*.f64 z #s(literal 30 binary64)) #s(literal 2 binary64)))) #s(literal 25 binary64)) (-.f64 (fabs.f64 (+.f64 (+.f64 (*.f64 (sin.f64 (*.f64 x #s(literal 30 binary64))) (cos.f64 (*.f64 y #s(literal 30 binary64)))) (*.f64 (sin.f64 (*.f64 y #s(literal 30 binary64))) (cos.f64 (*.f64 z #s(literal 30 binary64))))) (*.f64 (sin.f64 (*.f64 z #s(literal 30 binary64))) (cos.f64 (*.f64 x #s(literal 30 binary64)))))) #s(literal 1/5 binary64))) Initial program 35.6%
Taylor expanded in y around inf
*-commutativeN/A
lift-*.f6419.2
Applied rewrites19.2%
Taylor expanded in x around 0
+-commutativeN/A
lower-+.f64N/A
Applied rewrites41.0%
Taylor expanded in z around 0
lower-+.f64N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6473.8
Applied rewrites73.8%
Taylor expanded in y around 0
lower-fma.f64N/A
lower-fma.f64N/A
lower-*.f6495.8
Applied rewrites95.8%
Final simplification95.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -3.15e+147) (not (<= x 2e+149))) (fmax (* -30.0 x) (- (fabs (* 30.0 x)) 0.2)) (fmax (* y 30.0) (- (fabs (* 30.0 z)) 0.2))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -3.15e+147) || !(x <= 2e+149)) {
tmp = fmax((-30.0 * x), (fabs((30.0 * x)) - 0.2));
} else {
tmp = fmax((y * 30.0), (fabs((30.0 * z)) - 0.2));
}
return tmp;
}
module fmin_fmax_functions
implicit none
private
public fmax
public fmin
interface fmax
module procedure fmax88
module procedure fmax44
module procedure fmax84
module procedure fmax48
end interface
interface fmin
module procedure fmin88
module procedure fmin44
module procedure fmin84
module procedure fmin48
end interface
contains
real(8) function fmax88(x, y) result (res)
real(8), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(x, max(x, y), y /= y), x /= x)
end function
real(4) function fmax44(x, y) result (res)
real(4), intent (in) :: x
real(4), intent (in) :: y
res = merge(y, merge(x, max(x, y), y /= y), x /= x)
end function
real(8) function fmax84(x, y) result(res)
real(8), intent (in) :: x
real(4), intent (in) :: y
res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
end function
real(8) function fmax48(x, y) result(res)
real(4), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
end function
real(8) function fmin88(x, y) result (res)
real(8), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(x, min(x, y), y /= y), x /= x)
end function
real(4) function fmin44(x, y) result (res)
real(4), intent (in) :: x
real(4), intent (in) :: y
res = merge(y, merge(x, min(x, y), y /= y), x /= x)
end function
real(8) function fmin84(x, y) result(res)
real(8), intent (in) :: x
real(4), intent (in) :: y
res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
end function
real(8) function fmin48(x, y) result(res)
real(4), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
end function
end module
real(8) function code(x, y, z)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((x <= (-3.15d+147)) .or. (.not. (x <= 2d+149))) then
tmp = fmax(((-30.0d0) * x), (abs((30.0d0 * x)) - 0.2d0))
else
tmp = fmax((y * 30.0d0), (abs((30.0d0 * z)) - 0.2d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -3.15e+147) || !(x <= 2e+149)) {
tmp = fmax((-30.0 * x), (Math.abs((30.0 * x)) - 0.2));
} else {
tmp = fmax((y * 30.0), (Math.abs((30.0 * z)) - 0.2));
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -3.15e+147) or not (x <= 2e+149): tmp = fmax((-30.0 * x), (math.fabs((30.0 * x)) - 0.2)) else: tmp = fmax((y * 30.0), (math.fabs((30.0 * z)) - 0.2)) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -3.15e+147) || !(x <= 2e+149)) tmp = fmax(Float64(-30.0 * x), Float64(abs(Float64(30.0 * x)) - 0.2)); else tmp = fmax(Float64(y * 30.0), Float64(abs(Float64(30.0 * z)) - 0.2)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -3.15e+147) || ~((x <= 2e+149))) tmp = max((-30.0 * x), (abs((30.0 * x)) - 0.2)); else tmp = max((y * 30.0), (abs((30.0 * z)) - 0.2)); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -3.15e+147], N[Not[LessEqual[x, 2e+149]], $MachinePrecision]], N[Max[N[(-30.0 * x), $MachinePrecision], N[(N[Abs[N[(30.0 * x), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision], N[Max[N[(y * 30.0), $MachinePrecision], N[(N[Abs[N[(30.0 * z), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -3.15 \cdot 10^{+147} \lor \neg \left(x \leq 2 \cdot 10^{+149}\right):\\
\;\;\;\;\mathsf{max}\left(-30 \cdot x, \left|30 \cdot x\right| - 0.2\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{max}\left(y \cdot 30, \left|30 \cdot z\right| - 0.2\right)\\
\end{array}
\end{array}
if x < -3.14999999999999991e147 or 2.0000000000000001e149 < x Initial program 9.7%
Taylor expanded in x around -inf
lower-*.f6436.0
Applied rewrites36.0%
Taylor expanded in z around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
*-commutativeN/A
lift-sin.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lift-cos.f64N/A
lift-*.f64N/A
*-commutativeN/A
lift-sin.f64N/A
lift-*.f6436.0
Applied rewrites36.0%
Taylor expanded in y around 0
lift-sin.f64N/A
lift-*.f6436.0
Applied rewrites36.0%
Taylor expanded in x around 0
lift-*.f6472.9
Applied rewrites72.9%
if -3.14999999999999991e147 < x < 2.0000000000000001e149Initial program 55.7%
Taylor expanded in y around inf
*-commutativeN/A
lift-*.f6422.9
Applied rewrites22.9%
Taylor expanded in x around 0
+-commutativeN/A
lower-+.f64N/A
Applied rewrites30.1%
Taylor expanded in z around 0
lower-+.f64N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6465.8
Applied rewrites65.8%
Taylor expanded in z around inf
lower-*.f6458.2
Applied rewrites58.2%
Final simplification62.7%
(FPCore (x y z) :precision binary64 (fmax (* y 30.0) (- (fabs (fma 30.0 x (fma 30.0 y (* 30.0 z)))) 0.2)))
double code(double x, double y, double z) {
return fmax((y * 30.0), (fabs(fma(30.0, x, fma(30.0, y, (30.0 * z)))) - 0.2));
}
function code(x, y, z) return fmax(Float64(y * 30.0), Float64(abs(fma(30.0, x, fma(30.0, y, Float64(30.0 * z)))) - 0.2)) end
code[x_, y_, z_] := N[Max[N[(y * 30.0), $MachinePrecision], N[(N[Abs[N[(30.0 * x + N[(30.0 * y + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\mathsf{max}\left(y \cdot 30, \left|\mathsf{fma}\left(30, x, \mathsf{fma}\left(30, y, 30 \cdot z\right)\right)\right| - 0.2\right)
\end{array}
Initial program 41.7%
Taylor expanded in y around inf
*-commutativeN/A
lift-*.f6417.8
Applied rewrites17.8%
Taylor expanded in x around 0
+-commutativeN/A
lower-+.f64N/A
Applied rewrites37.5%
Taylor expanded in z around 0
lower-+.f64N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6467.2
Applied rewrites67.2%
Taylor expanded in y around 0
lower-fma.f64N/A
lower-fma.f64N/A
lower-*.f6487.2
Applied rewrites87.2%
(FPCore (x y z) :precision binary64 (fmax (* y 30.0) (- (fabs (fma 30.0 x (* 30.0 z))) 0.2)))
double code(double x, double y, double z) {
return fmax((y * 30.0), (fabs(fma(30.0, x, (30.0 * z))) - 0.2));
}
function code(x, y, z) return fmax(Float64(y * 30.0), Float64(abs(fma(30.0, x, Float64(30.0 * z))) - 0.2)) end
code[x_, y_, z_] := N[Max[N[(y * 30.0), $MachinePrecision], N[(N[Abs[N[(30.0 * x + N[(30.0 * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\mathsf{max}\left(y \cdot 30, \left|\mathsf{fma}\left(30, x, 30 \cdot z\right)\right| - 0.2\right)
\end{array}
Initial program 41.7%
Taylor expanded in y around inf
*-commutativeN/A
lift-*.f6417.8
Applied rewrites17.8%
Taylor expanded in x around 0
+-commutativeN/A
lower-+.f64N/A
Applied rewrites37.5%
Taylor expanded in z around 0
lower-+.f64N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6467.2
Applied rewrites67.2%
Taylor expanded in y around 0
lower-fma.f64N/A
lower-*.f6474.4
Applied rewrites74.4%
(FPCore (x y z) :precision binary64 (fmax (* -30.0 x) (- (fabs (* 30.0 x)) 0.2)))
double code(double x, double y, double z) {
return fmax((-30.0 * x), (fabs((30.0 * x)) - 0.2));
}
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), (abs((30.0d0 * x)) - 0.2d0))
end function
public static double code(double x, double y, double z) {
return fmax((-30.0 * x), (Math.abs((30.0 * x)) - 0.2));
}
def code(x, y, z): return fmax((-30.0 * x), (math.fabs((30.0 * x)) - 0.2))
function code(x, y, z) return fmax(Float64(-30.0 * x), Float64(abs(Float64(30.0 * x)) - 0.2)) end
function tmp = code(x, y, z) tmp = max((-30.0 * x), (abs((30.0 * x)) - 0.2)); end
code[x_, y_, z_] := N[Max[N[(-30.0 * x), $MachinePrecision], N[(N[Abs[N[(30.0 * x), $MachinePrecision]], $MachinePrecision] - 0.2), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\mathsf{max}\left(-30 \cdot x, \left|30 \cdot x\right| - 0.2\right)
\end{array}
Initial program 41.7%
Taylor expanded in x around -inf
lower-*.f6418.3
Applied rewrites18.3%
Taylor expanded in z around 0
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
*-commutativeN/A
lift-sin.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lift-cos.f64N/A
lift-*.f64N/A
*-commutativeN/A
lift-sin.f64N/A
lift-*.f6418.0
Applied rewrites18.0%
Taylor expanded in y around 0
lift-sin.f64N/A
lift-*.f6417.5
Applied rewrites17.5%
Taylor expanded in x around 0
lift-*.f6431.0
Applied rewrites31.0%
herbie shell --seed 2025064
(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)))