
(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}
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (if (<= (/ x_m (* y_m 2.0)) 2e+85) (/ 1.0 (cos (pow (sqrt (* (/ x_m y_m) 0.5)) 2.0))) (/ 1.0 (expm1 (* (pow (/ x_m y_m) 2.0) -0.0625)))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
double tmp;
if ((x_m / (y_m * 2.0)) <= 2e+85) {
tmp = 1.0 / cos(pow(sqrt(((x_m / y_m) * 0.5)), 2.0));
} else {
tmp = 1.0 / expm1((pow((x_m / y_m), 2.0) * -0.0625));
}
return tmp;
}
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
double tmp;
if ((x_m / (y_m * 2.0)) <= 2e+85) {
tmp = 1.0 / Math.cos(Math.pow(Math.sqrt(((x_m / y_m) * 0.5)), 2.0));
} else {
tmp = 1.0 / Math.expm1((Math.pow((x_m / y_m), 2.0) * -0.0625));
}
return tmp;
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): tmp = 0 if (x_m / (y_m * 2.0)) <= 2e+85: tmp = 1.0 / math.cos(math.pow(math.sqrt(((x_m / y_m) * 0.5)), 2.0)) else: tmp = 1.0 / math.expm1((math.pow((x_m / y_m), 2.0) * -0.0625)) return tmp
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) tmp = 0.0 if (Float64(x_m / Float64(y_m * 2.0)) <= 2e+85) tmp = Float64(1.0 / cos((sqrt(Float64(Float64(x_m / y_m) * 0.5)) ^ 2.0))); else tmp = Float64(1.0 / expm1(Float64((Float64(x_m / y_m) ^ 2.0) * -0.0625))); end return tmp end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := If[LessEqual[N[(x$95$m / N[(y$95$m * 2.0), $MachinePrecision]), $MachinePrecision], 2e+85], N[(1.0 / N[Cos[N[Power[N[Sqrt[N[(N[(x$95$m / y$95$m), $MachinePrecision] * 0.5), $MachinePrecision]], $MachinePrecision], 2.0], $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(Exp[N[(N[Power[N[(x$95$m / y$95$m), $MachinePrecision], 2.0], $MachinePrecision] * -0.0625), $MachinePrecision]] - 1), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\begin{array}{l}
\mathbf{if}\;\frac{x\_m}{y\_m \cdot 2} \leq 2 \cdot 10^{+85}:\\
\;\;\;\;\frac{1}{\cos \left({\left(\sqrt{\frac{x\_m}{y\_m} \cdot 0.5}\right)}^{2}\right)}\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\mathsf{expm1}\left({\left(\frac{x\_m}{y\_m}\right)}^{2} \cdot -0.0625\right)}\\
\end{array}
\end{array}
if (/.f64 x (*.f64 y #s(literal 2 binary64))) < 2e85Initial program 48.9%
Taylor expanded in x around inf 63.9%
*-un-lft-identity63.9%
*-commutative63.9%
clear-num64.0%
un-div-inv64.0%
Applied egg-rr64.0%
*-rgt-identity64.0%
associate-/r/63.9%
Simplified63.9%
associate-/r/64.0%
Applied egg-rr64.0%
add-sqr-sqrt37.7%
pow237.7%
div-inv37.7%
clear-num37.8%
Applied egg-rr37.8%
if 2e85 < (/.f64 x (*.f64 y #s(literal 2 binary64))) Initial program 7.2%
Taylor expanded in x around inf 7.2%
/-rgt-identity7.2%
expm1-log1p-u7.2%
/-rgt-identity7.2%
clear-num7.7%
un-div-inv7.7%
Applied egg-rr7.7%
Taylor expanded in y around inf 13.2%
+-commutative13.2%
*-commutative13.2%
fma-define13.2%
unpow213.2%
unpow213.2%
times-frac13.8%
unpow213.8%
Simplified13.8%
Taylor expanded in x around inf 13.2%
unpow213.2%
unpow213.2%
times-frac13.8%
unpow213.8%
*-commutative13.8%
Simplified13.8%
Final simplification33.2%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (/ 1.0 (expm1 (fma (pow (/ x_m y_m) 2.0) -0.0625 (log 2.0)))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
return 1.0 / expm1(fma(pow((x_m / y_m), 2.0), -0.0625, log(2.0)));
}
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) return Float64(1.0 / expm1(fma((Float64(x_m / y_m) ^ 2.0), -0.0625, log(2.0)))) end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := N[(1.0 / N[(Exp[N[(N[Power[N[(x$95$m / y$95$m), $MachinePrecision], 2.0], $MachinePrecision] * -0.0625 + N[Log[2.0], $MachinePrecision]), $MachinePrecision]] - 1), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\frac{1}{\mathsf{expm1}\left(\mathsf{fma}\left({\left(\frac{x\_m}{y\_m}\right)}^{2}, -0.0625, \log 2\right)\right)}
\end{array}
Initial program 40.9%
Taylor expanded in x around inf 53.0%
/-rgt-identity53.0%
expm1-log1p-u53.1%
/-rgt-identity53.1%
clear-num53.2%
un-div-inv53.2%
Applied egg-rr53.2%
Taylor expanded in y around inf 45.6%
+-commutative45.6%
*-commutative45.6%
fma-define45.6%
unpow245.6%
unpow245.6%
times-frac54.5%
unpow254.5%
Simplified54.5%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (if (<= (/ x_m (* y_m 2.0)) 2e+85) (/ 1.0 (cos (/ (/ 0.5 y_m) (/ 1.0 x_m)))) (/ 1.0 (expm1 (* (pow (/ x_m y_m) 2.0) -0.0625)))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
double tmp;
if ((x_m / (y_m * 2.0)) <= 2e+85) {
tmp = 1.0 / cos(((0.5 / y_m) / (1.0 / x_m)));
} else {
tmp = 1.0 / expm1((pow((x_m / y_m), 2.0) * -0.0625));
}
return tmp;
}
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
double tmp;
if ((x_m / (y_m * 2.0)) <= 2e+85) {
tmp = 1.0 / Math.cos(((0.5 / y_m) / (1.0 / x_m)));
} else {
tmp = 1.0 / Math.expm1((Math.pow((x_m / y_m), 2.0) * -0.0625));
}
return tmp;
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): tmp = 0 if (x_m / (y_m * 2.0)) <= 2e+85: tmp = 1.0 / math.cos(((0.5 / y_m) / (1.0 / x_m))) else: tmp = 1.0 / math.expm1((math.pow((x_m / y_m), 2.0) * -0.0625)) return tmp
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) tmp = 0.0 if (Float64(x_m / Float64(y_m * 2.0)) <= 2e+85) tmp = Float64(1.0 / cos(Float64(Float64(0.5 / y_m) / Float64(1.0 / x_m)))); else tmp = Float64(1.0 / expm1(Float64((Float64(x_m / y_m) ^ 2.0) * -0.0625))); end return tmp end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := If[LessEqual[N[(x$95$m / N[(y$95$m * 2.0), $MachinePrecision]), $MachinePrecision], 2e+85], N[(1.0 / N[Cos[N[(N[(0.5 / y$95$m), $MachinePrecision] / N[(1.0 / x$95$m), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(1.0 / N[(Exp[N[(N[Power[N[(x$95$m / y$95$m), $MachinePrecision], 2.0], $MachinePrecision] * -0.0625), $MachinePrecision]] - 1), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\begin{array}{l}
\mathbf{if}\;\frac{x\_m}{y\_m \cdot 2} \leq 2 \cdot 10^{+85}:\\
\;\;\;\;\frac{1}{\cos \left(\frac{\frac{0.5}{y\_m}}{\frac{1}{x\_m}}\right)}\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\mathsf{expm1}\left({\left(\frac{x\_m}{y\_m}\right)}^{2} \cdot -0.0625\right)}\\
\end{array}
\end{array}
if (/.f64 x (*.f64 y #s(literal 2 binary64))) < 2e85Initial program 48.9%
Taylor expanded in x around inf 63.9%
*-un-lft-identity63.9%
*-commutative63.9%
clear-num64.0%
un-div-inv64.0%
Applied egg-rr64.0%
*-rgt-identity64.0%
associate-/r/63.9%
Simplified63.9%
associate-/r/64.0%
div-inv63.8%
associate-/r*63.6%
Applied egg-rr63.6%
if 2e85 < (/.f64 x (*.f64 y #s(literal 2 binary64))) Initial program 7.2%
Taylor expanded in x around inf 7.2%
/-rgt-identity7.2%
expm1-log1p-u7.2%
/-rgt-identity7.2%
clear-num7.7%
un-div-inv7.7%
Applied egg-rr7.7%
Taylor expanded in y around inf 13.2%
+-commutative13.2%
*-commutative13.2%
fma-define13.2%
unpow213.2%
unpow213.2%
times-frac13.8%
unpow213.8%
Simplified13.8%
Taylor expanded in x around inf 13.2%
unpow213.2%
unpow213.2%
times-frac13.8%
unpow213.8%
*-commutative13.8%
Simplified13.8%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (/ 1.0 (cos (/ 0.5 (/ y_m x_m)))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
return 1.0 / cos((0.5 / (y_m / x_m)));
}
x_m = abs(x)
y_m = abs(y)
real(8) function code(x_m, y_m)
real(8), intent (in) :: x_m
real(8), intent (in) :: y_m
code = 1.0d0 / cos((0.5d0 / (y_m / x_m)))
end function
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
return 1.0 / Math.cos((0.5 / (y_m / x_m)));
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): return 1.0 / math.cos((0.5 / (y_m / x_m)))
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) return Float64(1.0 / cos(Float64(0.5 / Float64(y_m / x_m)))) end
x_m = abs(x); y_m = abs(y); function tmp = code(x_m, y_m) tmp = 1.0 / cos((0.5 / (y_m / x_m))); end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := N[(1.0 / N[Cos[N[(0.5 / N[(y$95$m / x$95$m), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\frac{1}{\cos \left(\frac{0.5}{\frac{y\_m}{x\_m}}\right)}
\end{array}
Initial program 40.9%
Taylor expanded in x around inf 53.0%
*-un-lft-identity53.0%
*-commutative53.0%
clear-num53.2%
un-div-inv53.2%
Applied egg-rr53.2%
*-rgt-identity53.2%
associate-/r/53.0%
Simplified53.0%
associate-/r/53.2%
Applied egg-rr53.2%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (/ 1.0 (cos (* (/ x_m y_m) 0.5))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
return 1.0 / cos(((x_m / y_m) * 0.5));
}
x_m = abs(x)
y_m = abs(y)
real(8) function code(x_m, y_m)
real(8), intent (in) :: x_m
real(8), intent (in) :: y_m
code = 1.0d0 / cos(((x_m / y_m) * 0.5d0))
end function
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
return 1.0 / Math.cos(((x_m / y_m) * 0.5));
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): return 1.0 / math.cos(((x_m / y_m) * 0.5))
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) return Float64(1.0 / cos(Float64(Float64(x_m / y_m) * 0.5))) end
x_m = abs(x); y_m = abs(y); function tmp = code(x_m, y_m) tmp = 1.0 / cos(((x_m / y_m) * 0.5)); end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := N[(1.0 / N[Cos[N[(N[(x$95$m / y$95$m), $MachinePrecision] * 0.5), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\frac{1}{\cos \left(\frac{x\_m}{y\_m} \cdot 0.5\right)}
\end{array}
Initial program 40.9%
Taylor expanded in x around inf 53.0%
Final simplification53.0%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 1.0)
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
return 1.0;
}
x_m = abs(x)
y_m = abs(y)
real(8) function code(x_m, y_m)
real(8), intent (in) :: x_m
real(8), intent (in) :: y_m
code = 1.0d0
end function
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
return 1.0;
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): return 1.0
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) return 1.0 end
x_m = abs(x); y_m = abs(y); function tmp = code(x_m, y_m) tmp = 1.0; end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := 1.0
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
1
\end{array}
Initial program 40.9%
remove-double-neg40.9%
distribute-frac-neg40.9%
tan-neg40.9%
distribute-frac-neg240.9%
distribute-lft-neg-out40.9%
distribute-frac-neg240.9%
distribute-lft-neg-out40.9%
distribute-frac-neg240.9%
distribute-frac-neg40.9%
neg-mul-140.9%
*-commutative40.9%
associate-/l*40.5%
*-commutative40.5%
associate-/r*40.5%
metadata-eval40.5%
sin-neg40.5%
distribute-frac-neg40.5%
Simplified40.9%
Taylor expanded in x around 0 51.9%
(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 2024106
(FPCore (x y)
:name "Diagrams.TwoD.Layout.CirclePacking:approxRadius from diagrams-contrib-1.3.0.5"
:precision binary64
:alt
(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)))))