
(FPCore (x y) :precision binary64 (exp (* (* x y) y)))
double code(double x, double y) {
return exp(((x * y) * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = exp(((x * y) * y))
end function
public static double code(double x, double y) {
return Math.exp(((x * y) * y));
}
def code(x, y): return math.exp(((x * y) * y))
function code(x, y) return exp(Float64(Float64(x * y) * y)) end
function tmp = code(x, y) tmp = exp(((x * y) * y)); end
code[x_, y_] := N[Exp[N[(N[(x * y), $MachinePrecision] * y), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
e^{\left(x \cdot y\right) \cdot y}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 3 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (exp (* (* x y) y)))
double code(double x, double y) {
return exp(((x * y) * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = exp(((x * y) * y))
end function
public static double code(double x, double y) {
return Math.exp(((x * y) * y));
}
def code(x, y): return math.exp(((x * y) * y))
function code(x, y) return exp(Float64(Float64(x * y) * y)) end
function tmp = code(x, y) tmp = exp(((x * y) * y)); end
code[x_, y_] := N[Exp[N[(N[(x * y), $MachinePrecision] * y), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
e^{\left(x \cdot y\right) \cdot y}
\end{array}
(FPCore (x y)
:precision binary64
(let* ((t_0 (* x (pow y 2.0))))
(*
(cbrt (pow (* (pow E t_0) (cbrt (exp t_0))) 2.0))
(pow (exp 2.0) (* (pow y 2.0) (* x 0.05555555555555555))))))
double code(double x, double y) {
double t_0 = x * pow(y, 2.0);
return cbrt(pow((pow(((double) M_E), t_0) * cbrt(exp(t_0))), 2.0)) * pow(exp(2.0), (pow(y, 2.0) * (x * 0.05555555555555555)));
}
public static double code(double x, double y) {
double t_0 = x * Math.pow(y, 2.0);
return Math.cbrt(Math.pow((Math.pow(Math.E, t_0) * Math.cbrt(Math.exp(t_0))), 2.0)) * Math.pow(Math.exp(2.0), (Math.pow(y, 2.0) * (x * 0.05555555555555555)));
}
function code(x, y) t_0 = Float64(x * (y ^ 2.0)) return Float64(cbrt((Float64((exp(1) ^ t_0) * cbrt(exp(t_0))) ^ 2.0)) * (exp(2.0) ^ Float64((y ^ 2.0) * Float64(x * 0.05555555555555555)))) end
code[x_, y_] := Block[{t$95$0 = N[(x * N[Power[y, 2.0], $MachinePrecision]), $MachinePrecision]}, N[(N[Power[N[Power[N[(N[Power[E, t$95$0], $MachinePrecision] * N[Power[N[Exp[t$95$0], $MachinePrecision], 1/3], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision], 1/3], $MachinePrecision] * N[Power[N[Exp[2.0], $MachinePrecision], N[(N[Power[y, 2.0], $MachinePrecision] * N[(x * 0.05555555555555555), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot {y}^{2}\\
\sqrt[3]{{\left({e}^{t_0} \cdot \sqrt[3]{e^{t_0}}\right)}^{2}} \cdot {\left(e^{2}\right)}^{\left({y}^{2} \cdot \left(x \cdot 0.05555555555555555\right)\right)}
\end{array}
\end{array}
Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
add-cbrt-cube100.0%
pow1/3100.0%
add-cube-cbrt99.9%
associate-*r*99.9%
unpow-prod-down100.0%
Applied egg-rr77.0%
unpow1/377.0%
exp-prod92.5%
exp-prod92.5%
exp-prod99.9%
Simplified99.9%
*-un-lft-identity99.9%
pow-exp100.0%
e-exp-1100.0%
Applied egg-rr100.0%
pow1/3100.0%
pow1/3100.0%
pow-pow100.0%
*-un-lft-identity100.0%
pow-exp100.0%
e-exp-1100.0%
sqr-pow100.0%
pow-prod-down100.0%
pow-pow100.0%
e-exp-1100.0%
e-exp-1100.0%
prod-exp100.0%
metadata-eval100.0%
div-inv100.0%
metadata-eval100.0%
metadata-eval100.0%
Applied egg-rr100.0%
Taylor expanded in x around 0 100.0%
*-commutative100.0%
*-commutative100.0%
associate-*r*100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y) :precision binary64 (exp (* x (* y y))))
double code(double x, double y) {
return exp((x * (y * y)));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = exp((x * (y * y)))
end function
public static double code(double x, double y) {
return Math.exp((x * (y * y)));
}
def code(x, y): return math.exp((x * (y * y)))
function code(x, y) return exp(Float64(x * Float64(y * y))) end
function tmp = code(x, y) tmp = exp((x * (y * y))); end
code[x_, y_] := N[Exp[N[(x * N[(y * y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
e^{x \cdot \left(y \cdot y\right)}
\end{array}
Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y) :precision binary64 1.0)
double code(double x, double y) {
return 1.0;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0
end function
public static double code(double x, double y) {
return 1.0;
}
def code(x, y): return 1.0
function code(x, y) return 1.0 end
function tmp = code(x, y) tmp = 1.0; end
code[x_, y_] := 1.0
\begin{array}{l}
\\
1
\end{array}
Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
Taylor expanded in x around 0 54.3%
Final simplification54.3%
herbie shell --seed 2023321
(FPCore (x y)
:name "Data.Random.Distribution.Normal:normalF from random-fu-0.2.6.2"
:precision binary64
(exp (* (* x y) y)))