
(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}
y_m = (fabs.f64 y)
x_m = (fabs.f64 x)
(FPCore (x_m y_m)
:precision binary64
(let* ((t_0 (exp (* (- 0.5) (* (log y_m) 0.5)))) (t_1 (/ x_m (* 2.0 y_m))))
(if (<= (/ (tan t_1) (sin t_1)) 9.0)
(/
1.0
(cos
(/
(* (* t_0 (pow (/ 1.0 y_m) 0.5)) t_0)
(pow (exp -1.0) (log (* 0.5 x_m))))))
1.0)))y_m = fabs(y);
x_m = fabs(x);
double code(double x_m, double y_m) {
double t_0 = exp((-0.5 * (log(y_m) * 0.5)));
double t_1 = x_m / (2.0 * y_m);
double tmp;
if ((tan(t_1) / sin(t_1)) <= 9.0) {
tmp = 1.0 / cos((((t_0 * pow((1.0 / y_m), 0.5)) * t_0) / pow(exp(-1.0), log((0.5 * x_m)))));
} else {
tmp = 1.0;
}
return tmp;
}
y_m = abs(y)
x_m = abs(x)
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) :: t_1
real(8) :: tmp
t_0 = exp((-0.5d0 * (log(y_m) * 0.5d0)))
t_1 = x_m / (2.0d0 * y_m)
if ((tan(t_1) / sin(t_1)) <= 9.0d0) then
tmp = 1.0d0 / cos((((t_0 * ((1.0d0 / y_m) ** 0.5d0)) * t_0) / (exp((-1.0d0)) ** log((0.5d0 * x_m)))))
else
tmp = 1.0d0
end if
code = tmp
end function
y_m = Math.abs(y);
x_m = Math.abs(x);
public static double code(double x_m, double y_m) {
double t_0 = Math.exp((-0.5 * (Math.log(y_m) * 0.5)));
double t_1 = x_m / (2.0 * y_m);
double tmp;
if ((Math.tan(t_1) / Math.sin(t_1)) <= 9.0) {
tmp = 1.0 / Math.cos((((t_0 * Math.pow((1.0 / y_m), 0.5)) * t_0) / Math.pow(Math.exp(-1.0), Math.log((0.5 * x_m)))));
} else {
tmp = 1.0;
}
return tmp;
}
y_m = math.fabs(y) x_m = math.fabs(x) def code(x_m, y_m): t_0 = math.exp((-0.5 * (math.log(y_m) * 0.5))) t_1 = x_m / (2.0 * y_m) tmp = 0 if (math.tan(t_1) / math.sin(t_1)) <= 9.0: tmp = 1.0 / math.cos((((t_0 * math.pow((1.0 / y_m), 0.5)) * t_0) / math.pow(math.exp(-1.0), math.log((0.5 * x_m))))) else: tmp = 1.0 return tmp
y_m = abs(y) x_m = abs(x) function code(x_m, y_m) t_0 = exp(Float64(Float64(-0.5) * Float64(log(y_m) * 0.5))) t_1 = Float64(x_m / Float64(2.0 * y_m)) tmp = 0.0 if (Float64(tan(t_1) / sin(t_1)) <= 9.0) tmp = Float64(1.0 / cos(Float64(Float64(Float64(t_0 * (Float64(1.0 / y_m) ^ 0.5)) * t_0) / (exp(-1.0) ^ log(Float64(0.5 * x_m)))))); else tmp = 1.0; end return tmp end
y_m = abs(y); x_m = abs(x); function tmp_2 = code(x_m, y_m) t_0 = exp((-0.5 * (log(y_m) * 0.5))); t_1 = x_m / (2.0 * y_m); tmp = 0.0; if ((tan(t_1) / sin(t_1)) <= 9.0) tmp = 1.0 / cos((((t_0 * ((1.0 / y_m) ^ 0.5)) * t_0) / (exp(-1.0) ^ log((0.5 * x_m))))); else tmp = 1.0; end tmp_2 = tmp; end
y_m = N[Abs[y], $MachinePrecision]
x_m = N[Abs[x], $MachinePrecision]
code[x$95$m_, y$95$m_] := Block[{t$95$0 = N[Exp[N[((-0.5) * N[(N[Log[y$95$m], $MachinePrecision] * 0.5), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, Block[{t$95$1 = N[(x$95$m / N[(2.0 * y$95$m), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[Tan[t$95$1], $MachinePrecision] / N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision], 9.0], N[(1.0 / N[Cos[N[(N[(N[(t$95$0 * N[Power[N[(1.0 / y$95$m), $MachinePrecision], 0.5], $MachinePrecision]), $MachinePrecision] * t$95$0), $MachinePrecision] / N[Power[N[Exp[-1.0], $MachinePrecision], N[Log[N[(0.5 * x$95$m), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 1.0]]]
\begin{array}{l}
y_m = \left|y\right|
\\
x_m = \left|x\right|
\\
\begin{array}{l}
t_0 := e^{\left(-0.5\right) \cdot \left(\log y\_m \cdot 0.5\right)}\\
t_1 := \frac{x\_m}{2 \cdot y\_m}\\
\mathbf{if}\;\frac{\tan t\_1}{\sin t\_1} \leq 9:\\
\;\;\;\;\frac{1}{\cos \left(\frac{\left(t\_0 \cdot {\left(\frac{1}{y\_m}\right)}^{0.5}\right) \cdot t\_0}{{\left(e^{-1}\right)}^{\log \left(0.5 \cdot 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))))) < 9Initial program 57.2%
lift-/.f64N/A
clear-numN/A
lift-*.f64N/A
associate-/l*N/A
associate-/r*N/A
lower-/.f64N/A
lower-/.f64N/A
lower-/.f6456.6
Applied rewrites56.6%
Applied rewrites57.3%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
inv-powN/A
div-invN/A
metadata-evalN/A
metadata-evalN/A
distribute-rgt-neg-inN/A
*-commutativeN/A
lift-*.f64N/A
metadata-evalN/A
pow-powN/A
pow2N/A
sqr-negN/A
pow2N/A
pow-powN/A
metadata-evalN/A
inv-powN/A
associate-/r/N/A
lift-/.f64N/A
inv-powN/A
exp-to-powN/A
lift-log.f64N/A
*-commutativeN/A
exp-prodN/A
Applied rewrites10.1%
lift-pow.f64N/A
sqr-powN/A
sqr-powN/A
associate-*r*N/A
lower-*.f64N/A
Applied rewrites10.0%
if 9 < (/.f64 (tan.f64 (/.f64 x (*.f64 y #s(literal 2 binary64)))) (sin.f64 (/.f64 x (*.f64 y #s(literal 2 binary64))))) Initial program 1.0%
Taylor expanded in y around inf
Applied rewrites47.1%
Final simplification21.6%
y_m = (fabs.f64 y) x_m = (fabs.f64 x) (FPCore (x_m y_m) :precision binary64 1.0)
y_m = fabs(y);
x_m = fabs(x);
double code(double x_m, double y_m) {
return 1.0;
}
y_m = abs(y)
x_m = abs(x)
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
y_m = Math.abs(y);
x_m = Math.abs(x);
public static double code(double x_m, double y_m) {
return 1.0;
}
y_m = math.fabs(y) x_m = math.fabs(x) def code(x_m, y_m): return 1.0
y_m = abs(y) x_m = abs(x) function code(x_m, y_m) return 1.0 end
y_m = abs(y); x_m = abs(x); function tmp = code(x_m, y_m) tmp = 1.0; end
y_m = N[Abs[y], $MachinePrecision] x_m = N[Abs[x], $MachinePrecision] code[x$95$m_, y$95$m_] := 1.0
\begin{array}{l}
y_m = \left|y\right|
\\
x_m = \left|x\right|
\\
1
\end{array}
Initial program 39.6%
Taylor expanded in y around inf
Applied rewrites52.8%
(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 2024235
(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)))))