
(FPCore (x y) :precision binary64 (let* ((t_0 (/ x (* y 2.0)))) (/ (tan t_0) (sin t_0))))
double code(double x, double y) {
double t_0 = x / (y * 2.0);
return tan(t_0) / sin(t_0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: t_0
t_0 = x / (y * 2.0d0)
code = tan(t_0) / sin(t_0)
end function
public static double code(double x, double y) {
double t_0 = x / (y * 2.0);
return Math.tan(t_0) / Math.sin(t_0);
}
def code(x, y): t_0 = x / (y * 2.0) return math.tan(t_0) / math.sin(t_0)
function code(x, y) t_0 = Float64(x / Float64(y * 2.0)) return Float64(tan(t_0) / sin(t_0)) end
function tmp = code(x, y) t_0 = x / (y * 2.0); tmp = tan(t_0) / sin(t_0); end
code[x_, y_] := Block[{t$95$0 = N[(x / N[(y * 2.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Tan[t$95$0], $MachinePrecision] / N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{x}{y \cdot 2}\\
\frac{\tan t_0}{\sin t_0}
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (let* ((t_0 (/ x (* y 2.0)))) (/ (tan t_0) (sin t_0))))
double code(double x, double y) {
double t_0 = x / (y * 2.0);
return tan(t_0) / sin(t_0);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: t_0
t_0 = x / (y * 2.0d0)
code = tan(t_0) / sin(t_0)
end function
public static double code(double x, double y) {
double t_0 = x / (y * 2.0);
return Math.tan(t_0) / Math.sin(t_0);
}
def code(x, y): t_0 = x / (y * 2.0) return math.tan(t_0) / math.sin(t_0)
function code(x, y) t_0 = Float64(x / Float64(y * 2.0)) return Float64(tan(t_0) / sin(t_0)) end
function tmp = code(x, y) t_0 = x / (y * 2.0); tmp = tan(t_0) / sin(t_0); end
code[x_, y_] := Block[{t$95$0 = N[(x / N[(y * 2.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Tan[t$95$0], $MachinePrecision] / N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{x}{y \cdot 2}\\
\frac{\tan t_0}{\sin t_0}
\end{array}
\end{array}
(FPCore (x y) :precision binary64 (/ 1.0 (cos (* (* x 0.5) (/ (pow (cbrt y) -2.0) (cbrt y))))))
double code(double x, double y) {
return 1.0 / cos(((x * 0.5) * (pow(cbrt(y), -2.0) / cbrt(y))));
}
public static double code(double x, double y) {
return 1.0 / Math.cos(((x * 0.5) * (Math.pow(Math.cbrt(y), -2.0) / Math.cbrt(y))));
}
function code(x, y) return Float64(1.0 / cos(Float64(Float64(x * 0.5) * Float64((cbrt(y) ^ -2.0) / cbrt(y))))) end
code[x_, y_] := N[(1.0 / N[Cos[N[(N[(x * 0.5), $MachinePrecision] * N[(N[Power[N[Power[y, 1/3], $MachinePrecision], -2.0], $MachinePrecision] / N[Power[y, 1/3], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\cos \left(\left(x \cdot 0.5\right) \cdot \frac{{\left(\sqrt[3]{y}\right)}^{-2}}{\sqrt[3]{y}}\right)}
\end{array}
Initial program 41.8%
add-log-exp41.8%
*-un-lft-identity41.8%
log-prod41.8%
metadata-eval41.8%
add-log-exp41.8%
div-inv40.6%
tan-quot40.6%
associate-*l/40.6%
pow140.6%
inv-pow40.6%
pow-prod-up54.3%
metadata-eval54.3%
metadata-eval54.3%
div-inv54.6%
*-commutative54.6%
associate-/r*54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*r/54.3%
add-cbrt-cube47.1%
cbrt-prod50.9%
associate-/r*50.9%
cbrt-prod54.7%
pow254.7%
Applied egg-rr54.7%
div-inv54.3%
div-inv54.5%
pow-flip54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*l*55.4%
Simplified55.4%
un-div-inv55.4%
Applied egg-rr55.4%
Final simplification55.4%
(FPCore (x y) :precision binary64 (/ 1.0 (cos (* (* x 0.5) (pow (/ 1.0 (cbrt y)) 3.0)))))
double code(double x, double y) {
return 1.0 / cos(((x * 0.5) * pow((1.0 / cbrt(y)), 3.0)));
}
public static double code(double x, double y) {
return 1.0 / Math.cos(((x * 0.5) * Math.pow((1.0 / Math.cbrt(y)), 3.0)));
}
function code(x, y) return Float64(1.0 / cos(Float64(Float64(x * 0.5) * (Float64(1.0 / cbrt(y)) ^ 3.0)))) end
code[x_, y_] := N[(1.0 / N[Cos[N[(N[(x * 0.5), $MachinePrecision] * N[Power[N[(1.0 / N[Power[y, 1/3], $MachinePrecision]), $MachinePrecision], 3.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\cos \left(\left(x \cdot 0.5\right) \cdot {\left(\frac{1}{\sqrt[3]{y}}\right)}^{3}\right)}
\end{array}
Initial program 41.8%
add-log-exp41.8%
*-un-lft-identity41.8%
log-prod41.8%
metadata-eval41.8%
add-log-exp41.8%
div-inv40.6%
tan-quot40.6%
associate-*l/40.6%
pow140.6%
inv-pow40.6%
pow-prod-up54.3%
metadata-eval54.3%
metadata-eval54.3%
div-inv54.6%
*-commutative54.6%
associate-/r*54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*r/54.3%
add-cbrt-cube47.1%
cbrt-prod50.9%
associate-/r*50.9%
cbrt-prod54.7%
pow254.7%
Applied egg-rr54.7%
div-inv54.3%
div-inv54.5%
pow-flip54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*l*55.4%
Simplified55.4%
metadata-eval55.4%
pow-prod-up55.4%
inv-pow55.4%
inv-pow55.4%
pow355.4%
Applied egg-rr55.4%
Final simplification55.4%
(FPCore (x y) :precision binary64 (/ 1.0 (cos (* (* x 0.5) (pow (cbrt y) -3.0)))))
double code(double x, double y) {
return 1.0 / cos(((x * 0.5) * pow(cbrt(y), -3.0)));
}
public static double code(double x, double y) {
return 1.0 / Math.cos(((x * 0.5) * Math.pow(Math.cbrt(y), -3.0)));
}
function code(x, y) return Float64(1.0 / cos(Float64(Float64(x * 0.5) * (cbrt(y) ^ -3.0)))) end
code[x_, y_] := N[(1.0 / N[Cos[N[(N[(x * 0.5), $MachinePrecision] * N[Power[N[Power[y, 1/3], $MachinePrecision], -3.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\cos \left(\left(x \cdot 0.5\right) \cdot {\left(\sqrt[3]{y}\right)}^{-3}\right)}
\end{array}
Initial program 41.8%
add-log-exp41.8%
*-un-lft-identity41.8%
log-prod41.8%
metadata-eval41.8%
add-log-exp41.8%
div-inv40.6%
tan-quot40.6%
associate-*l/40.6%
pow140.6%
inv-pow40.6%
pow-prod-up54.3%
metadata-eval54.3%
metadata-eval54.3%
div-inv54.6%
*-commutative54.6%
associate-/r*54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*r/54.3%
add-cbrt-cube47.1%
cbrt-prod50.9%
associate-/r*50.9%
cbrt-prod54.7%
pow254.7%
Applied egg-rr54.7%
div-inv54.3%
div-inv54.5%
pow-flip54.6%
metadata-eval54.6%
Applied egg-rr54.6%
associate-*l*55.4%
Simplified55.4%
expm1-log1p-u46.1%
expm1-udef45.0%
inv-pow45.0%
pow-prod-up45.0%
metadata-eval45.0%
Applied egg-rr45.0%
expm1-def46.1%
expm1-log1p55.1%
Simplified55.1%
Final simplification55.1%
(FPCore (x y) :precision binary64 (fabs (/ 1.0 (cos (* 0.5 (/ x y))))))
double code(double x, double y) {
return fabs((1.0 / cos((0.5 * (x / y)))));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = abs((1.0d0 / cos((0.5d0 * (x / y)))))
end function
public static double code(double x, double y) {
return Math.abs((1.0 / Math.cos((0.5 * (x / y)))));
}
def code(x, y): return math.fabs((1.0 / math.cos((0.5 * (x / y)))))
function code(x, y) return abs(Float64(1.0 / cos(Float64(0.5 * Float64(x / y))))) end
function tmp = code(x, y) tmp = abs((1.0 / cos((0.5 * (x / y))))); end
code[x_, y_] := N[Abs[N[(1.0 / N[Cos[N[(0.5 * N[(x / y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\frac{1}{\cos \left(0.5 \cdot \frac{x}{y}\right)}\right|
\end{array}
Initial program 41.8%
add-cube-cbrt41.0%
pow341.1%
div-inv41.4%
*-commutative41.4%
associate-/r*41.4%
metadata-eval41.4%
Applied egg-rr41.4%
add-sqr-sqrt38.8%
sqrt-unprod41.2%
pow241.2%
metadata-eval41.2%
div-inv41.2%
associate-/l*41.2%
associate-*r/41.4%
rem-cube-cbrt42.1%
Applied egg-rr42.1%
unpow242.1%
rem-sqrt-square42.1%
Simplified42.1%
Taylor expanded in x around inf 54.6%
Final simplification54.6%
(FPCore (x y) :precision binary64 (/ 1.0 (cos (* x (/ 0.5 y)))))
double code(double x, double y) {
return 1.0 / cos((x * (0.5 / y)));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 1.0d0 / cos((x * (0.5d0 / y)))
end function
public static double code(double x, double y) {
return 1.0 / Math.cos((x * (0.5 / y)));
}
def code(x, y): return 1.0 / math.cos((x * (0.5 / y)))
function code(x, y) return Float64(1.0 / cos(Float64(x * Float64(0.5 / y)))) end
function tmp = code(x, y) tmp = 1.0 / cos((x * (0.5 / y))); end
code[x_, y_] := N[(1.0 / N[Cos[N[(x * N[(0.5 / y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{1}{\cos \left(x \cdot \frac{0.5}{y}\right)}
\end{array}
Initial program 41.8%
tan-quot41.8%
clear-num40.6%
div-inv40.9%
*-commutative40.9%
associate-/r*40.9%
metadata-eval40.9%
div-inv40.4%
*-commutative40.4%
associate-/r*40.4%
metadata-eval40.4%
Applied egg-rr40.4%
Taylor expanded in x around inf 54.3%
associate-*r/54.3%
*-commutative54.3%
associate-*r/54.6%
Simplified54.6%
Final simplification54.6%
(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 41.8%
Taylor expanded in x around 0 54.5%
Final simplification54.5%
(FPCore (x y)
:precision binary64
(let* ((t_0 (/ x (* y 2.0))) (t_1 (sin t_0)))
(if (< y -1.2303690911306994e+114)
1.0
(if (< y -9.102852406811914e-222)
(/ t_1 (* t_1 (log (exp (cos t_0)))))
1.0))))
double code(double x, double y) {
double t_0 = x / (y * 2.0);
double t_1 = sin(t_0);
double tmp;
if (y < -1.2303690911306994e+114) {
tmp = 1.0;
} else if (y < -9.102852406811914e-222) {
tmp = t_1 / (t_1 * log(exp(cos(t_0))));
} else {
tmp = 1.0;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: t_0
real(8) :: t_1
real(8) :: tmp
t_0 = x / (y * 2.0d0)
t_1 = sin(t_0)
if (y < (-1.2303690911306994d+114)) then
tmp = 1.0d0
else if (y < (-9.102852406811914d-222)) then
tmp = t_1 / (t_1 * log(exp(cos(t_0))))
else
tmp = 1.0d0
end if
code = tmp
end function
public static double code(double x, double y) {
double t_0 = x / (y * 2.0);
double t_1 = Math.sin(t_0);
double tmp;
if (y < -1.2303690911306994e+114) {
tmp = 1.0;
} else if (y < -9.102852406811914e-222) {
tmp = t_1 / (t_1 * Math.log(Math.exp(Math.cos(t_0))));
} else {
tmp = 1.0;
}
return tmp;
}
def code(x, y): t_0 = x / (y * 2.0) t_1 = math.sin(t_0) tmp = 0 if y < -1.2303690911306994e+114: tmp = 1.0 elif y < -9.102852406811914e-222: tmp = t_1 / (t_1 * math.log(math.exp(math.cos(t_0)))) else: tmp = 1.0 return tmp
function code(x, y) t_0 = Float64(x / Float64(y * 2.0)) t_1 = sin(t_0) tmp = 0.0 if (y < -1.2303690911306994e+114) tmp = 1.0; elseif (y < -9.102852406811914e-222) tmp = Float64(t_1 / Float64(t_1 * log(exp(cos(t_0))))); else tmp = 1.0; end return tmp end
function tmp_2 = code(x, y) t_0 = x / (y * 2.0); t_1 = sin(t_0); tmp = 0.0; if (y < -1.2303690911306994e+114) tmp = 1.0; elseif (y < -9.102852406811914e-222) tmp = t_1 / (t_1 * log(exp(cos(t_0)))); else tmp = 1.0; end tmp_2 = tmp; end
code[x_, y_] := Block[{t$95$0 = N[(x / N[(y * 2.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$1 = N[Sin[t$95$0], $MachinePrecision]}, If[Less[y, -1.2303690911306994e+114], 1.0, If[Less[y, -9.102852406811914e-222], N[(t$95$1 / N[(t$95$1 * N[Log[N[Exp[N[Cos[t$95$0], $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 1.0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{x}{y \cdot 2}\\
t_1 := \sin t_0\\
\mathbf{if}\;y < -1.2303690911306994 \cdot 10^{+114}:\\
\;\;\;\;1\\
\mathbf{elif}\;y < -9.102852406811914 \cdot 10^{-222}:\\
\;\;\;\;\frac{t_1}{t_1 \cdot \log \left(e^{\cos t_0}\right)}\\
\mathbf{else}:\\
\;\;\;\;1\\
\end{array}
\end{array}
herbie shell --seed 2023195
(FPCore (x y)
:name "Diagrams.TwoD.Layout.CirclePacking:approxRadius from diagrams-contrib-1.3.0.5"
:precision binary64
:herbie-target
(if (< y -1.2303690911306994e+114) 1.0 (if (< y -9.102852406811914e-222) (/ (sin (/ x (* y 2.0))) (* (sin (/ x (* y 2.0))) (log (exp (cos (/ x (* y 2.0))))))) 1.0))
(/ (tan (/ x (* y 2.0))) (sin (/ x (* y 2.0)))))