
(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 3 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
(let* ((t_0 (/ x_m (* y_m 2.0))))
(if (<= (/ (tan t_0) (sin t_0)) 1.5)
(/
1.0
(cos
(exp
(- (- 0.0 (* 0.5 (log y_m))) (log (/ (/ 2.0 (pow y_m -0.5)) x_m))))))
1.0)))x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
double t_0 = x_m / (y_m * 2.0);
double tmp;
if ((tan(t_0) / sin(t_0)) <= 1.5) {
tmp = 1.0 / cos(exp(((0.0 - (0.5 * log(y_m))) - log(((2.0 / pow(y_m, -0.5)) / x_m)))));
} else {
tmp = 1.0;
}
return tmp;
}
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
real(8) :: t_0
real(8) :: tmp
t_0 = x_m / (y_m * 2.0d0)
if ((tan(t_0) / sin(t_0)) <= 1.5d0) then
tmp = 1.0d0 / cos(exp(((0.0d0 - (0.5d0 * log(y_m))) - log(((2.0d0 / (y_m ** (-0.5d0))) / x_m)))))
else
tmp = 1.0d0
end if
code = tmp
end function
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
double t_0 = x_m / (y_m * 2.0);
double tmp;
if ((Math.tan(t_0) / Math.sin(t_0)) <= 1.5) {
tmp = 1.0 / Math.cos(Math.exp(((0.0 - (0.5 * Math.log(y_m))) - Math.log(((2.0 / Math.pow(y_m, -0.5)) / x_m)))));
} else {
tmp = 1.0;
}
return tmp;
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): t_0 = x_m / (y_m * 2.0) tmp = 0 if (math.tan(t_0) / math.sin(t_0)) <= 1.5: tmp = 1.0 / math.cos(math.exp(((0.0 - (0.5 * math.log(y_m))) - math.log(((2.0 / math.pow(y_m, -0.5)) / x_m))))) else: tmp = 1.0 return tmp
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) t_0 = Float64(x_m / Float64(y_m * 2.0)) tmp = 0.0 if (Float64(tan(t_0) / sin(t_0)) <= 1.5) tmp = Float64(1.0 / cos(exp(Float64(Float64(0.0 - Float64(0.5 * log(y_m))) - log(Float64(Float64(2.0 / (y_m ^ -0.5)) / x_m)))))); else tmp = 1.0; end return tmp end
x_m = abs(x); y_m = abs(y); function tmp_2 = code(x_m, y_m) t_0 = x_m / (y_m * 2.0); tmp = 0.0; if ((tan(t_0) / sin(t_0)) <= 1.5) tmp = 1.0 / cos(exp(((0.0 - (0.5 * log(y_m))) - log(((2.0 / (y_m ^ -0.5)) / x_m))))); else tmp = 1.0; end tmp_2 = tmp; end
x_m = N[Abs[x], $MachinePrecision]
y_m = N[Abs[y], $MachinePrecision]
code[x$95$m_, y$95$m_] := Block[{t$95$0 = N[(x$95$m / N[(y$95$m * 2.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[Tan[t$95$0], $MachinePrecision] / N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 1.5], N[(1.0 / N[Cos[N[Exp[N[(N[(0.0 - N[(0.5 * N[Log[y$95$m], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[Log[N[(N[(2.0 / N[Power[y$95$m, -0.5], $MachinePrecision]), $MachinePrecision] / x$95$m), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 1.0]]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\begin{array}{l}
t_0 := \frac{x\_m}{y\_m \cdot 2}\\
\mathbf{if}\;\frac{\tan t\_0}{\sin t\_0} \leq 1.5:\\
\;\;\;\;\frac{1}{\cos \left(e^{\left(0 - 0.5 \cdot \log y\_m\right) - \log \left(\frac{\frac{2}{{y\_m}^{-0.5}}}{x\_m}\right)}\right)}\\
\mathbf{else}:\\
\;\;\;\;1\\
\end{array}
\end{array}
if (/.f64 (tan.f64 (/.f64 x (*.f64 y #s(literal 2 binary64)))) (sin.f64 (/.f64 x (*.f64 y #s(literal 2 binary64))))) < 1.5Initial program 63.9%
Taylor expanded in x around inf
/-lowering-/.f64N/A
associate-*r/N/A
*-commutativeN/A
associate-*r/N/A
metadata-evalN/A
associate-*r/N/A
cos-lowering-cos.f64N/A
associate-*r/N/A
metadata-evalN/A
associate-*r/N/A
*-commutativeN/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f6463.9%
Simplified63.9%
metadata-evalN/A
div-invN/A
clear-numN/A
associate-/r/N/A
clear-numN/A
div-invN/A
inv-powN/A
metadata-evalN/A
pow-prod-upN/A
metadata-evalN/A
associate-*l/N/A
frac-timesN/A
clear-numN/A
un-div-invN/A
frac-2negN/A
distribute-frac-neg2N/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
distribute-neg-fracN/A
metadata-evalN/A
/-lowering-/.f64N/A
distribute-neg-fracN/A
/-lowering-/.f64N/A
metadata-evalN/A
pow-lowering-pow.f6435.9%
Applied egg-rr35.9%
associate-/l/N/A
*-commutativeN/A
frac-timesN/A
metadata-evalN/A
associate-/l/N/A
un-div-invN/A
*-commutativeN/A
/-rgt-identityN/A
clear-numN/A
clear-numN/A
div-invN/A
clear-numN/A
inv-powN/A
pow-to-expN/A
pow-to-expN/A
rec-expN/A
div-expN/A
exp-lowering-exp.f64N/A
--lowering--.f64N/A
Applied egg-rr15.3%
if 1.5 < (/.f64 (tan.f64 (/.f64 x (*.f64 y #s(literal 2 binary64)))) (sin.f64 (/.f64 x (*.f64 y #s(literal 2 binary64))))) Initial program 2.0%
Taylor expanded in x around 0
Simplified43.0%
Final simplification24.3%
x_m = (fabs.f64 x) y_m = (fabs.f64 y) (FPCore (x_m y_m) :precision binary64 (if (<= (* y_m 2.0) 1e-130) 1.0 (/ 1.0 (cos (* (pow y_m -0.25) (/ (pow y_m -0.75) (/ 2.0 x_m)))))))
x_m = fabs(x);
y_m = fabs(y);
double code(double x_m, double y_m) {
double tmp;
if ((y_m * 2.0) <= 1e-130) {
tmp = 1.0;
} else {
tmp = 1.0 / cos((pow(y_m, -0.25) * (pow(y_m, -0.75) / (2.0 / x_m))));
}
return tmp;
}
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
real(8) :: tmp
if ((y_m * 2.0d0) <= 1d-130) then
tmp = 1.0d0
else
tmp = 1.0d0 / cos(((y_m ** (-0.25d0)) * ((y_m ** (-0.75d0)) / (2.0d0 / x_m))))
end if
code = tmp
end function
x_m = Math.abs(x);
y_m = Math.abs(y);
public static double code(double x_m, double y_m) {
double tmp;
if ((y_m * 2.0) <= 1e-130) {
tmp = 1.0;
} else {
tmp = 1.0 / Math.cos((Math.pow(y_m, -0.25) * (Math.pow(y_m, -0.75) / (2.0 / x_m))));
}
return tmp;
}
x_m = math.fabs(x) y_m = math.fabs(y) def code(x_m, y_m): tmp = 0 if (y_m * 2.0) <= 1e-130: tmp = 1.0 else: tmp = 1.0 / math.cos((math.pow(y_m, -0.25) * (math.pow(y_m, -0.75) / (2.0 / x_m)))) return tmp
x_m = abs(x) y_m = abs(y) function code(x_m, y_m) tmp = 0.0 if (Float64(y_m * 2.0) <= 1e-130) tmp = 1.0; else tmp = Float64(1.0 / cos(Float64((y_m ^ -0.25) * Float64((y_m ^ -0.75) / Float64(2.0 / x_m))))); end return tmp end
x_m = abs(x); y_m = abs(y); function tmp_2 = code(x_m, y_m) tmp = 0.0; if ((y_m * 2.0) <= 1e-130) tmp = 1.0; else tmp = 1.0 / cos(((y_m ^ -0.25) * ((y_m ^ -0.75) / (2.0 / x_m)))); end tmp_2 = tmp; end
x_m = N[Abs[x], $MachinePrecision] y_m = N[Abs[y], $MachinePrecision] code[x$95$m_, y$95$m_] := If[LessEqual[N[(y$95$m * 2.0), $MachinePrecision], 1e-130], 1.0, N[(1.0 / N[Cos[N[(N[Power[y$95$m, -0.25], $MachinePrecision] * N[(N[Power[y$95$m, -0.75], $MachinePrecision] / N[(2.0 / x$95$m), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
x_m = \left|x\right|
\\
y_m = \left|y\right|
\\
\begin{array}{l}
\mathbf{if}\;y\_m \cdot 2 \leq 10^{-130}:\\
\;\;\;\;1\\
\mathbf{else}:\\
\;\;\;\;\frac{1}{\cos \left({y\_m}^{-0.25} \cdot \frac{{y\_m}^{-0.75}}{\frac{2}{x\_m}}\right)}\\
\end{array}
\end{array}
if (*.f64 y #s(literal 2 binary64)) < 1.0000000000000001e-130Initial program 32.7%
Taylor expanded in x around 0
Simplified44.7%
if 1.0000000000000001e-130 < (*.f64 y #s(literal 2 binary64)) Initial program 65.9%
Taylor expanded in x around inf
/-lowering-/.f64N/A
associate-*r/N/A
*-commutativeN/A
associate-*r/N/A
metadata-evalN/A
associate-*r/N/A
cos-lowering-cos.f64N/A
associate-*r/N/A
metadata-evalN/A
associate-*r/N/A
*-commutativeN/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f6478.7%
Simplified78.7%
metadata-evalN/A
div-invN/A
clear-numN/A
associate-/r/N/A
clear-numN/A
div-invN/A
inv-powN/A
metadata-evalN/A
pow-prod-upN/A
sqr-powN/A
associate-*l*N/A
*-lft-identityN/A
times-fracN/A
/-rgt-identityN/A
*-lowering-*.f64N/A
pow-lowering-pow.f64N/A
metadata-evalN/A
/-lowering-/.f64N/A
Applied egg-rr79.6%
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 43.9%
Taylor expanded in x around 0
Simplified56.1%
(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 2024160
(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)))))