
(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}
NOTE: y and z should be sorted in increasing order before calling this function.
(FPCore (x y z t)
:precision binary64
(exp
(*
0.3333333333333333
(*
3.0
(log
(*
0.3333333333333333
(acos (* 0.05555555555555555 (/ (sqrt t) (* z (/ y x)))))))))))assert(y < z);
double code(double x, double y, double z, double t) {
return exp((0.3333333333333333 * (3.0 * log((0.3333333333333333 * acos((0.05555555555555555 * (sqrt(t) / (z * (y / x))))))))));
}
NOTE: y and z should be sorted in increasing order before calling this function.
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 = exp((0.3333333333333333d0 * (3.0d0 * log((0.3333333333333333d0 * acos((0.05555555555555555d0 * (sqrt(t) / (z * (y / x))))))))))
end function
assert y < z;
public static double code(double x, double y, double z, double t) {
return Math.exp((0.3333333333333333 * (3.0 * Math.log((0.3333333333333333 * Math.acos((0.05555555555555555 * (Math.sqrt(t) / (z * (y / x))))))))));
}
[y, z] = sort([y, z]) def code(x, y, z, t): return math.exp((0.3333333333333333 * (3.0 * math.log((0.3333333333333333 * math.acos((0.05555555555555555 * (math.sqrt(t) / (z * (y / x))))))))))
y, z = sort([y, z]) function code(x, y, z, t) return exp(Float64(0.3333333333333333 * Float64(3.0 * log(Float64(0.3333333333333333 * acos(Float64(0.05555555555555555 * Float64(sqrt(t) / Float64(z * Float64(y / x)))))))))) end
y, z = num2cell(sort([y, z])){:}
function tmp = code(x, y, z, t)
tmp = exp((0.3333333333333333 * (3.0 * log((0.3333333333333333 * acos((0.05555555555555555 * (sqrt(t) / (z * (y / x))))))))));
end
NOTE: y and z should be sorted in increasing order before calling this function. code[x_, y_, z_, t_] := N[Exp[N[(0.3333333333333333 * N[(3.0 * N[Log[N[(0.3333333333333333 * N[ArcCos[N[(0.05555555555555555 * N[(N[Sqrt[t], $MachinePrecision] / N[(z * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
[y, z] = \mathsf{sort}([y, z])\\
\\
e^{0.3333333333333333 \cdot \left(3 \cdot \log \left(0.3333333333333333 \cdot \cos^{-1} \left(0.05555555555555555 \cdot \frac{\sqrt{t}}{z \cdot \frac{y}{x}}\right)\right)\right)}
\end{array}
Initial program 97.7%
metadata-eval97.7%
associate-*r/97.7%
*-commutative97.7%
times-frac97.7%
*-commutative97.7%
times-frac97.7%
metadata-eval97.7%
metadata-eval97.7%
Simplified97.7%
add-cbrt-cube97.7%
pow1/397.7%
add-exp-log97.7%
pow-exp97.7%
Applied egg-rr99.2%
Final simplification99.2%
NOTE: y and z should be sorted in increasing order before calling this function.
(FPCore (x y z t)
:precision binary64
(log
(+
1.0
(expm1
(*
0.3333333333333333
(acos (* 0.05555555555555555 (/ (sqrt t) (* z (/ y x))))))))))assert(y < z);
double code(double x, double y, double z, double t) {
return log((1.0 + expm1((0.3333333333333333 * acos((0.05555555555555555 * (sqrt(t) / (z * (y / x)))))))));
}
assert y < z;
public static double code(double x, double y, double z, double t) {
return Math.log((1.0 + Math.expm1((0.3333333333333333 * Math.acos((0.05555555555555555 * (Math.sqrt(t) / (z * (y / x)))))))));
}
[y, z] = sort([y, z]) def code(x, y, z, t): return math.log((1.0 + math.expm1((0.3333333333333333 * math.acos((0.05555555555555555 * (math.sqrt(t) / (z * (y / x)))))))))
y, z = sort([y, z]) function code(x, y, z, t) return log(Float64(1.0 + expm1(Float64(0.3333333333333333 * acos(Float64(0.05555555555555555 * Float64(sqrt(t) / Float64(z * Float64(y / x))))))))) end
NOTE: y and z should be sorted in increasing order before calling this function. code[x_, y_, z_, t_] := N[Log[N[(1.0 + N[(Exp[N[(0.3333333333333333 * N[ArcCos[N[(0.05555555555555555 * N[(N[Sqrt[t], $MachinePrecision] / N[(z * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]] - 1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
[y, z] = \mathsf{sort}([y, z])\\
\\
\log \left(1 + \mathsf{expm1}\left(0.3333333333333333 \cdot \cos^{-1} \left(0.05555555555555555 \cdot \frac{\sqrt{t}}{z \cdot \frac{y}{x}}\right)\right)\right)
\end{array}
Initial program 97.7%
metadata-eval97.7%
associate-*r/97.7%
*-commutative97.7%
times-frac97.7%
*-commutative97.7%
times-frac97.7%
metadata-eval97.7%
metadata-eval97.7%
Simplified97.7%
log1p-expm1-u97.7%
log1p-udef97.7%
associate-*l*97.7%
clear-num97.7%
associate-*l/97.7%
*-un-lft-identity97.7%
div-inv97.7%
clear-num97.7%
Applied egg-rr97.7%
Final simplification97.7%
NOTE: y and z should be sorted in increasing order before calling this function.
(FPCore (x y z t)
:precision binary64
(+
(exp
(log1p
(*
0.3333333333333333
(acos (* 0.05555555555555555 (/ (sqrt t) (* z (/ y x))))))))
-1.0))assert(y < z);
double code(double x, double y, double z, double t) {
return exp(log1p((0.3333333333333333 * acos((0.05555555555555555 * (sqrt(t) / (z * (y / x)))))))) + -1.0;
}
assert y < z;
public static double code(double x, double y, double z, double t) {
return Math.exp(Math.log1p((0.3333333333333333 * Math.acos((0.05555555555555555 * (Math.sqrt(t) / (z * (y / x)))))))) + -1.0;
}
[y, z] = sort([y, z]) def code(x, y, z, t): return math.exp(math.log1p((0.3333333333333333 * math.acos((0.05555555555555555 * (math.sqrt(t) / (z * (y / x)))))))) + -1.0
y, z = sort([y, z]) function code(x, y, z, t) return Float64(exp(log1p(Float64(0.3333333333333333 * acos(Float64(0.05555555555555555 * Float64(sqrt(t) / Float64(z * Float64(y / x)))))))) + -1.0) end
NOTE: y and z should be sorted in increasing order before calling this function. code[x_, y_, z_, t_] := N[(N[Exp[N[Log[1 + N[(0.3333333333333333 * N[ArcCos[N[(0.05555555555555555 * N[(N[Sqrt[t], $MachinePrecision] / N[(z * N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] + -1.0), $MachinePrecision]
\begin{array}{l}
[y, z] = \mathsf{sort}([y, z])\\
\\
e^{\mathsf{log1p}\left(0.3333333333333333 \cdot \cos^{-1} \left(0.05555555555555555 \cdot \frac{\sqrt{t}}{z \cdot \frac{y}{x}}\right)\right)} + -1
\end{array}
Initial program 97.7%
metadata-eval97.7%
associate-*r/97.7%
*-commutative97.7%
times-frac97.7%
*-commutative97.7%
times-frac97.7%
metadata-eval97.7%
metadata-eval97.7%
Simplified97.7%
expm1-log1p-u97.7%
expm1-udef99.2%
associate-*l*99.2%
clear-num99.2%
associate-*l/99.2%
*-un-lft-identity99.2%
div-inv99.2%
clear-num99.2%
Applied egg-rr99.2%
Final simplification99.2%
NOTE: y and z should be sorted in increasing order before calling this function. (FPCore (x y z t) :precision binary64 (* 0.3333333333333333 (acos (* (sqrt t) (* 0.05555555555555555 (/ (/ x y) z))))))
assert(y < z);
double code(double x, double y, double z, double t) {
return 0.3333333333333333 * acos((sqrt(t) * (0.05555555555555555 * ((x / y) / z))));
}
NOTE: y and z should be sorted in increasing order before calling this function.
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) * (0.05555555555555555d0 * ((x / y) / z))))
end function
assert y < z;
public static double code(double x, double y, double z, double t) {
return 0.3333333333333333 * Math.acos((Math.sqrt(t) * (0.05555555555555555 * ((x / y) / z))));
}
[y, z] = sort([y, z]) def code(x, y, z, t): return 0.3333333333333333 * math.acos((math.sqrt(t) * (0.05555555555555555 * ((x / y) / z))))
y, z = sort([y, z]) function code(x, y, z, t) return Float64(0.3333333333333333 * acos(Float64(sqrt(t) * Float64(0.05555555555555555 * Float64(Float64(x / y) / z))))) end
y, z = num2cell(sort([y, z])){:}
function tmp = code(x, y, z, t)
tmp = 0.3333333333333333 * acos((sqrt(t) * (0.05555555555555555 * ((x / y) / z))));
end
NOTE: y and z should be sorted in increasing order before calling this function. code[x_, y_, z_, t_] := N[(0.3333333333333333 * N[ArcCos[N[(N[Sqrt[t], $MachinePrecision] * N[(0.05555555555555555 * N[(N[(x / y), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[y, z] = \mathsf{sort}([y, z])\\
\\
0.3333333333333333 \cdot \cos^{-1} \left(\sqrt{t} \cdot \left(0.05555555555555555 \cdot \frac{\frac{x}{y}}{z}\right)\right)
\end{array}
Initial program 97.7%
metadata-eval97.7%
associate-*r/97.7%
*-commutative97.7%
times-frac97.7%
*-commutative97.7%
times-frac97.7%
metadata-eval97.7%
metadata-eval97.7%
Simplified97.7%
Final simplification97.7%
(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 2023196
(FPCore (x y z t)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, D"
:precision binary64
:herbie-target
(/ (acos (* (/ (/ x 27.0) (* y z)) (/ (sqrt t) (/ 2.0 3.0)))) 3.0)
(* (/ 1.0 3.0) (acos (* (/ (* 3.0 (/ x (* y 27.0))) (* z 2.0)) (sqrt t)))))