
(FPCore (x y z t) :precision binary64 (* (/ 1.0 3.0) (acos (* (/ (* 3.0 (/ x (* y 27.0))) (* z 2.0)) (sqrt t)))))
double code(double x, double y, double z, double t) {
return (1.0 / 3.0) * acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * sqrt(t)));
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = (1.0d0 / 3.0d0) * acos((((3.0d0 * (x / (y * 27.0d0))) / (z * 2.0d0)) * sqrt(t)))
end function
public static double code(double x, double y, double z, double t) {
return (1.0 / 3.0) * Math.acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * Math.sqrt(t)));
}
def code(x, y, z, t): return (1.0 / 3.0) * math.acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * math.sqrt(t)))
function code(x, y, z, t) return Float64(Float64(1.0 / 3.0) * acos(Float64(Float64(Float64(3.0 * Float64(x / Float64(y * 27.0))) / Float64(z * 2.0)) * sqrt(t)))) end
function tmp = code(x, y, z, t) tmp = (1.0 / 3.0) * acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * sqrt(t))); end
code[x_, y_, z_, t_] := N[(N[(1.0 / 3.0), $MachinePrecision] * N[ArcCos[N[(N[(N[(3.0 * N[(x / N[(y * 27.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * 2.0), $MachinePrecision]), $MachinePrecision] * N[Sqrt[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{3} \cdot \cos^{-1} \left(\frac{3 \cdot \frac{x}{y \cdot 27}}{z \cdot 2} \cdot \sqrt{t}\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 4 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t) :precision binary64 (* (/ 1.0 3.0) (acos (* (/ (* 3.0 (/ x (* y 27.0))) (* z 2.0)) (sqrt t)))))
double code(double x, double y, double z, double t) {
return (1.0 / 3.0) * acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * sqrt(t)));
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = (1.0d0 / 3.0d0) * acos((((3.0d0 * (x / (y * 27.0d0))) / (z * 2.0d0)) * sqrt(t)))
end function
public static double code(double x, double y, double z, double t) {
return (1.0 / 3.0) * Math.acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * Math.sqrt(t)));
}
def code(x, y, z, t): return (1.0 / 3.0) * math.acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * math.sqrt(t)))
function code(x, y, z, t) return Float64(Float64(1.0 / 3.0) * acos(Float64(Float64(Float64(3.0 * Float64(x / Float64(y * 27.0))) / Float64(z * 2.0)) * sqrt(t)))) end
function tmp = code(x, y, z, t) tmp = (1.0 / 3.0) * acos((((3.0 * (x / (y * 27.0))) / (z * 2.0)) * sqrt(t))); end
code[x_, y_, z_, t_] := N[(N[(1.0 / 3.0), $MachinePrecision] * N[ArcCos[N[(N[(N[(3.0 * N[(x / N[(y * 27.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(z * 2.0), $MachinePrecision]), $MachinePrecision] * N[Sqrt[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{3} \cdot \cos^{-1} \left(\frac{3 \cdot \frac{x}{y \cdot 27}}{z \cdot 2} \cdot \sqrt{t}\right)
\end{array}
(FPCore (x y z t)
:precision binary64
(let* ((t_1 (asin (/ (sqrt t) (/ z (/ x (/ y 0.05555555555555555)))))))
(/
(- (* (* PI PI) 0.027777777777777776) (* (pow t_1 2.0) 0.1111111111111111))
(+ (* PI 0.16666666666666666) (* t_1 0.3333333333333333)))))
double code(double x, double y, double z, double t) {
double t_1 = asin((sqrt(t) / (z / (x / (y / 0.05555555555555555)))));
return (((((double) M_PI) * ((double) M_PI)) * 0.027777777777777776) - (pow(t_1, 2.0) * 0.1111111111111111)) / ((((double) M_PI) * 0.16666666666666666) + (t_1 * 0.3333333333333333));
}
public static double code(double x, double y, double z, double t) {
double t_1 = Math.asin((Math.sqrt(t) / (z / (x / (y / 0.05555555555555555)))));
return (((Math.PI * Math.PI) * 0.027777777777777776) - (Math.pow(t_1, 2.0) * 0.1111111111111111)) / ((Math.PI * 0.16666666666666666) + (t_1 * 0.3333333333333333));
}
def code(x, y, z, t): t_1 = math.asin((math.sqrt(t) / (z / (x / (y / 0.05555555555555555))))) return (((math.pi * math.pi) * 0.027777777777777776) - (math.pow(t_1, 2.0) * 0.1111111111111111)) / ((math.pi * 0.16666666666666666) + (t_1 * 0.3333333333333333))
function code(x, y, z, t) t_1 = asin(Float64(sqrt(t) / Float64(z / Float64(x / Float64(y / 0.05555555555555555))))) return Float64(Float64(Float64(Float64(pi * pi) * 0.027777777777777776) - Float64((t_1 ^ 2.0) * 0.1111111111111111)) / Float64(Float64(pi * 0.16666666666666666) + Float64(t_1 * 0.3333333333333333))) end
function tmp = code(x, y, z, t) t_1 = asin((sqrt(t) / (z / (x / (y / 0.05555555555555555))))); tmp = (((pi * pi) * 0.027777777777777776) - ((t_1 ^ 2.0) * 0.1111111111111111)) / ((pi * 0.16666666666666666) + (t_1 * 0.3333333333333333)); end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[ArcSin[N[(N[Sqrt[t], $MachinePrecision] / N[(z / N[(x / N[(y / 0.05555555555555555), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[(N[(N[(N[(Pi * Pi), $MachinePrecision] * 0.027777777777777776), $MachinePrecision] - N[(N[Power[t$95$1, 2.0], $MachinePrecision] * 0.1111111111111111), $MachinePrecision]), $MachinePrecision] / N[(N[(Pi * 0.16666666666666666), $MachinePrecision] + N[(t$95$1 * 0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \sin^{-1} \left(\frac{\sqrt{t}}{\frac{z}{\frac{x}{\frac{y}{0.05555555555555555}}}}\right)\\
\frac{\left(\pi \cdot \pi\right) \cdot 0.027777777777777776 - {t\_1}^{2} \cdot 0.1111111111111111}{\pi \cdot 0.16666666666666666 + t\_1 \cdot 0.3333333333333333}
\end{array}
\end{array}
Initial program 97.2%
*-lowering-*.f64N/A
metadata-evalN/A
acos-lowering-acos.f64N/A
associate-*l/N/A
*-commutativeN/A
associate-*r/N/A
*-commutativeN/A
times-fracN/A
associate-*l*N/A
times-fracN/A
associate-*r/N/A
*-lowering-*.f64N/A
metadata-evalN/A
metadata-evalN/A
associate-*l/N/A
associate-/l*N/A
*-commutativeN/A
associate-*r/N/A
Simplified96.2%
*-commutativeN/A
div-invN/A
associate-*l*N/A
*-commutativeN/A
associate-/l*N/A
associate-*l*N/A
*-lowering-*.f64N/A
sqrt-lowering-sqrt.f64N/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
associate-*l/N/A
metadata-evalN/A
/-lowering-/.f6497.7%
Applied egg-rr97.7%
Applied egg-rr98.7%
(FPCore (x y z t) :precision binary64 (- (* 0.16666666666666666 (cbrt (* PI (* PI PI)))) (* 0.3333333333333333 (asin (/ (sqrt t) (* z (/ 18.0 (/ x y))))))))
double code(double x, double y, double z, double t) {
return (0.16666666666666666 * cbrt((((double) M_PI) * (((double) M_PI) * ((double) M_PI))))) - (0.3333333333333333 * asin((sqrt(t) / (z * (18.0 / (x / y))))));
}
public static double code(double x, double y, double z, double t) {
return (0.16666666666666666 * Math.cbrt((Math.PI * (Math.PI * Math.PI)))) - (0.3333333333333333 * Math.asin((Math.sqrt(t) / (z * (18.0 / (x / y))))));
}
function code(x, y, z, t) return Float64(Float64(0.16666666666666666 * cbrt(Float64(pi * Float64(pi * pi)))) - Float64(0.3333333333333333 * asin(Float64(sqrt(t) / Float64(z * Float64(18.0 / Float64(x / y))))))) end
code[x_, y_, z_, t_] := N[(N[(0.16666666666666666 * N[Power[N[(Pi * N[(Pi * Pi), $MachinePrecision]), $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision] - N[(0.3333333333333333 * N[ArcSin[N[(N[Sqrt[t], $MachinePrecision] / N[(z * N[(18.0 / N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
0.16666666666666666 \cdot \sqrt[3]{\pi \cdot \left(\pi \cdot \pi\right)} - 0.3333333333333333 \cdot \sin^{-1} \left(\frac{\sqrt{t}}{z \cdot \frac{18}{\frac{x}{y}}}\right)
\end{array}
Initial program 97.2%
metadata-evalN/A
acos-asinN/A
sub-negN/A
distribute-rgt-inN/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
PI-lowering-PI.f64N/A
*-lowering-*.f64N/A
Applied egg-rr97.2%
div-invN/A
metadata-evalN/A
associate-*l*N/A
*-lowering-*.f64N/A
PI-lowering-PI.f64N/A
metadata-eval97.2%
Applied egg-rr97.2%
sub0-negN/A
associate-/r*N/A
div-invN/A
clear-numN/A
div-invN/A
metadata-evalN/A
associate-/r/N/A
associate-/r/N/A
cancel-sign-sub-invN/A
--lowering--.f64N/A
*-lowering-*.f64N/A
PI-lowering-PI.f64N/A
Applied egg-rr97.2%
add-cbrt-cubeN/A
associate-*r*N/A
cbrt-lowering-cbrt.f64N/A
*-lowering-*.f64N/A
PI-lowering-PI.f64N/A
*-lowering-*.f64N/A
PI-lowering-PI.f64N/A
PI-lowering-PI.f6498.7%
Applied egg-rr98.7%
Final simplification98.7%
(FPCore (x y z t) :precision binary64 (* 0.3333333333333333 (acos (* (sqrt t) (* (/ x z) (/ 0.05555555555555555 y))))))
double code(double x, double y, double z, double t) {
return 0.3333333333333333 * acos((sqrt(t) * ((x / z) * (0.05555555555555555 / y))));
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = 0.3333333333333333d0 * acos((sqrt(t) * ((x / z) * (0.05555555555555555d0 / y))))
end function
public static double code(double x, double y, double z, double t) {
return 0.3333333333333333 * Math.acos((Math.sqrt(t) * ((x / z) * (0.05555555555555555 / y))));
}
def code(x, y, z, t): return 0.3333333333333333 * math.acos((math.sqrt(t) * ((x / z) * (0.05555555555555555 / y))))
function code(x, y, z, t) return Float64(0.3333333333333333 * acos(Float64(sqrt(t) * Float64(Float64(x / z) * Float64(0.05555555555555555 / y))))) end
function tmp = code(x, y, z, t) tmp = 0.3333333333333333 * acos((sqrt(t) * ((x / z) * (0.05555555555555555 / y)))); end
code[x_, y_, z_, t_] := N[(0.3333333333333333 * N[ArcCos[N[(N[Sqrt[t], $MachinePrecision] * N[(N[(x / z), $MachinePrecision] * N[(0.05555555555555555 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
0.3333333333333333 \cdot \cos^{-1} \left(\sqrt{t} \cdot \left(\frac{x}{z} \cdot \frac{0.05555555555555555}{y}\right)\right)
\end{array}
Initial program 97.2%
*-lowering-*.f64N/A
metadata-evalN/A
acos-lowering-acos.f64N/A
associate-*l/N/A
*-commutativeN/A
associate-*r/N/A
*-commutativeN/A
times-fracN/A
associate-*l*N/A
times-fracN/A
associate-*r/N/A
*-lowering-*.f64N/A
metadata-evalN/A
metadata-evalN/A
associate-*l/N/A
associate-/l*N/A
*-commutativeN/A
associate-*r/N/A
Simplified96.2%
*-commutativeN/A
div-invN/A
associate-*l*N/A
*-commutativeN/A
associate-/l*N/A
associate-*l*N/A
*-lowering-*.f64N/A
sqrt-lowering-sqrt.f64N/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
associate-*l/N/A
metadata-evalN/A
/-lowering-/.f6497.7%
Applied egg-rr97.7%
(FPCore (x y z t) :precision binary64 (* 0.3333333333333333 (acos (* 0.05555555555555555 (/ (/ (* (sqrt t) x) z) y)))))
double code(double x, double y, double z, double t) {
return 0.3333333333333333 * acos((0.05555555555555555 * (((sqrt(t) * x) / z) / y)));
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = 0.3333333333333333d0 * acos((0.05555555555555555d0 * (((sqrt(t) * x) / z) / y)))
end function
public static double code(double x, double y, double z, double t) {
return 0.3333333333333333 * Math.acos((0.05555555555555555 * (((Math.sqrt(t) * x) / z) / y)));
}
def code(x, y, z, t): return 0.3333333333333333 * math.acos((0.05555555555555555 * (((math.sqrt(t) * x) / z) / y)))
function code(x, y, z, t) return Float64(0.3333333333333333 * acos(Float64(0.05555555555555555 * Float64(Float64(Float64(sqrt(t) * x) / z) / y)))) end
function tmp = code(x, y, z, t) tmp = 0.3333333333333333 * acos((0.05555555555555555 * (((sqrt(t) * x) / z) / y))); end
code[x_, y_, z_, t_] := N[(0.3333333333333333 * N[ArcCos[N[(0.05555555555555555 * N[(N[(N[(N[Sqrt[t], $MachinePrecision] * x), $MachinePrecision] / z), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
0.3333333333333333 \cdot \cos^{-1} \left(0.05555555555555555 \cdot \frac{\frac{\sqrt{t} \cdot x}{z}}{y}\right)
\end{array}
Initial program 97.2%
*-lowering-*.f64N/A
metadata-evalN/A
acos-lowering-acos.f64N/A
associate-*l/N/A
*-commutativeN/A
associate-*r/N/A
*-commutativeN/A
times-fracN/A
associate-*l*N/A
times-fracN/A
associate-*r/N/A
*-lowering-*.f64N/A
metadata-evalN/A
metadata-evalN/A
associate-*l/N/A
associate-/l*N/A
*-commutativeN/A
associate-*r/N/A
Simplified96.2%
Final simplification96.2%
(FPCore (x y z t) :precision binary64 (/ (acos (* (/ (/ x 27.0) (* y z)) (/ (sqrt t) (/ 2.0 3.0)))) 3.0))
double code(double x, double y, double z, double t) {
return acos((((x / 27.0) / (y * z)) * (sqrt(t) / (2.0 / 3.0)))) / 3.0;
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = acos((((x / 27.0d0) / (y * z)) * (sqrt(t) / (2.0d0 / 3.0d0)))) / 3.0d0
end function
public static double code(double x, double y, double z, double t) {
return Math.acos((((x / 27.0) / (y * z)) * (Math.sqrt(t) / (2.0 / 3.0)))) / 3.0;
}
def code(x, y, z, t): return math.acos((((x / 27.0) / (y * z)) * (math.sqrt(t) / (2.0 / 3.0)))) / 3.0
function code(x, y, z, t) return Float64(acos(Float64(Float64(Float64(x / 27.0) / Float64(y * z)) * Float64(sqrt(t) / Float64(2.0 / 3.0)))) / 3.0) end
function tmp = code(x, y, z, t) tmp = acos((((x / 27.0) / (y * z)) * (sqrt(t) / (2.0 / 3.0)))) / 3.0; end
code[x_, y_, z_, t_] := N[(N[ArcCos[N[(N[(N[(x / 27.0), $MachinePrecision] / N[(y * z), $MachinePrecision]), $MachinePrecision] * N[(N[Sqrt[t], $MachinePrecision] / N[(2.0 / 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / 3.0), $MachinePrecision]
\begin{array}{l}
\\
\frac{\cos^{-1} \left(\frac{\frac{x}{27}}{y \cdot z} \cdot \frac{\sqrt{t}}{\frac{2}{3}}\right)}{3}
\end{array}
herbie shell --seed 2024138
(FPCore (x y z t)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, D"
:precision binary64
:alt
(! :herbie-platform default (/ (acos (* (/ (/ x 27) (* y z)) (/ (sqrt t) (/ 2 3)))) 3))
(* (/ 1.0 3.0) (acos (* (/ (* 3.0 (/ x (* y 27.0))) (* z 2.0)) (sqrt t)))))