
(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 2 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)) 5e+24) (/ 1.0 (cos (* x_m (/ -0.5 y_m)))) (/ -0.5 (cbrt -0.125))))
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)) <= 5e+24) {
tmp = 1.0 / cos((x_m * (-0.5 / y_m)));
} else {
tmp = -0.5 / cbrt(-0.125);
}
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)) <= 5e+24) {
tmp = 1.0 / Math.cos((x_m * (-0.5 / y_m)));
} else {
tmp = -0.5 / Math.cbrt(-0.125);
}
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)) <= 5e+24) tmp = Float64(1.0 / cos(Float64(x_m * Float64(-0.5 / y_m)))); else tmp = Float64(-0.5 / cbrt(-0.125)); 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], 5e+24], N[(1.0 / N[Cos[N[(x$95$m * N[(-0.5 / y$95$m), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(-0.5 / N[Power[-0.125, 1/3], $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 5 \cdot 10^{+24}:\\
\;\;\;\;\frac{1}{\cos \left(x\_m \cdot \frac{-0.5}{y\_m}\right)}\\
\mathbf{else}:\\
\;\;\;\;\frac{-0.5}{\sqrt[3]{-0.125}}\\
\end{array}
\end{array}
if (/.f64 x (*.f64 y #s(literal 2 binary64))) < 5.00000000000000045e24Initial program 49.3%
remove-double-neg49.3%
distribute-frac-neg49.3%
tan-neg49.3%
distribute-frac-neg249.3%
distribute-lft-neg-out49.3%
distribute-frac-neg249.3%
distribute-lft-neg-out49.3%
distribute-frac-neg249.3%
distribute-frac-neg49.3%
neg-mul-149.3%
*-commutative49.3%
associate-/l*49.2%
*-commutative49.2%
associate-/r*49.2%
metadata-eval49.2%
sin-neg49.2%
distribute-frac-neg49.2%
Simplified49.7%
Taylor expanded in x around inf 64.2%
associate-*r/64.2%
*-commutative64.2%
associate-*r/64.5%
Simplified64.5%
if 5.00000000000000045e24 < (/.f64 x (*.f64 y #s(literal 2 binary64))) Initial program 7.1%
add-cbrt-cube1.6%
pow1/31.5%
pow31.5%
*-un-lft-identity1.5%
*-commutative1.5%
times-frac1.5%
metadata-eval1.5%
Applied egg-rr1.5%
Taylor expanded in y around -inf 14.7%
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 40.4%
remove-double-neg40.4%
distribute-frac-neg40.4%
tan-neg40.4%
distribute-frac-neg240.4%
distribute-lft-neg-out40.4%
distribute-frac-neg240.4%
distribute-lft-neg-out40.4%
distribute-frac-neg240.4%
distribute-frac-neg40.4%
neg-mul-140.4%
*-commutative40.4%
associate-/l*40.3%
*-commutative40.3%
associate-/r*40.3%
metadata-eval40.3%
sin-neg40.3%
distribute-frac-neg40.3%
Simplified40.6%
Taylor expanded in x around 0 53.1%
(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 2024123
(FPCore (x y)
:name "Diagrams.TwoD.Layout.CirclePacking:approxRadius from diagrams-contrib-1.3.0.5"
:precision binary64
:alt
(! :herbie-platform default (if (< y -1230369091130699400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) 1 (if (< y -4551426203405957/500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ (sin (/ x (* y 2))) (* (sin (/ x (* y 2))) (log (exp (cos (/ x (* y 2))))))) 1)))
(/ (tan (/ x (* y 2.0))) (sin (/ x (* y 2.0)))))