
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* PI (/ angle 180.0)))) (+ (pow (* a (cos t_0)) 2.0) (pow (* b (sin t_0)) 2.0))))
double code(double a, double b, double angle) {
double t_0 = ((double) M_PI) * (angle / 180.0);
return pow((a * cos(t_0)), 2.0) + pow((b * sin(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = Math.PI * (angle / 180.0);
return Math.pow((a * Math.cos(t_0)), 2.0) + Math.pow((b * Math.sin(t_0)), 2.0);
}
def code(a, b, angle): t_0 = math.pi * (angle / 180.0) return math.pow((a * math.cos(t_0)), 2.0) + math.pow((b * math.sin(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(pi * Float64(angle / 180.0)) return Float64((Float64(a * cos(t_0)) ^ 2.0) + (Float64(b * sin(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = pi * (angle / 180.0); tmp = ((a * cos(t_0)) ^ 2.0) + ((b * sin(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Power[N[(a * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \pi \cdot \frac{angle}{180}\\
{\left(a \cdot \cos t_0\right)}^{2} + {\left(b \cdot \sin t_0\right)}^{2}
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* PI (/ angle 180.0)))) (+ (pow (* a (cos t_0)) 2.0) (pow (* b (sin t_0)) 2.0))))
double code(double a, double b, double angle) {
double t_0 = ((double) M_PI) * (angle / 180.0);
return pow((a * cos(t_0)), 2.0) + pow((b * sin(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = Math.PI * (angle / 180.0);
return Math.pow((a * Math.cos(t_0)), 2.0) + Math.pow((b * Math.sin(t_0)), 2.0);
}
def code(a, b, angle): t_0 = math.pi * (angle / 180.0) return math.pow((a * math.cos(t_0)), 2.0) + math.pow((b * math.sin(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(pi * Float64(angle / 180.0)) return Float64((Float64(a * cos(t_0)) ^ 2.0) + (Float64(b * sin(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = pi * (angle / 180.0); tmp = ((a * cos(t_0)) ^ 2.0) + ((b * sin(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Power[N[(a * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \pi \cdot \frac{angle}{180}\\
{\left(a \cdot \cos t_0\right)}^{2} + {\left(b \cdot \sin t_0\right)}^{2}
\end{array}
\end{array}
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (pow (* b (sin (* PI (/ angle 180.0)))) 2.0)))
double code(double a, double b, double angle) {
return pow(a, 2.0) + pow((b * sin((((double) M_PI) * (angle / 180.0)))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + Math.pow((b * Math.sin((Math.PI * (angle / 180.0)))), 2.0);
}
def code(a, b, angle): return math.pow(a, 2.0) + math.pow((b * math.sin((math.pi * (angle / 180.0)))), 2.0)
function code(a, b, angle) return Float64((a ^ 2.0) + (Float64(b * sin(Float64(pi * Float64(angle / 180.0)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + ((b * sin((pi * (angle / 180.0)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + {\left(b \cdot \sin \left(\pi \cdot \frac{angle}{180}\right)\right)}^{2}
\end{array}
Initial program 83.4%
Taylor expanded in angle around 0 83.5%
Final simplification83.5%
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (pow (* b (sin (* angle (/ PI 180.0)))) 2.0)))
double code(double a, double b, double angle) {
return pow(a, 2.0) + pow((b * sin((angle * (((double) M_PI) / 180.0)))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + Math.pow((b * Math.sin((angle * (Math.PI / 180.0)))), 2.0);
}
def code(a, b, angle): return math.pow(a, 2.0) + math.pow((b * math.sin((angle * (math.pi / 180.0)))), 2.0)
function code(a, b, angle) return Float64((a ^ 2.0) + (Float64(b * sin(Float64(angle * Float64(pi / 180.0)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + ((b * sin((angle * (pi / 180.0)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[N[(angle * N[(Pi / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + {\left(b \cdot \sin \left(angle \cdot \frac{\pi}{180}\right)\right)}^{2}
\end{array}
Initial program 83.4%
Taylor expanded in angle around 0 83.5%
Taylor expanded in angle around inf 83.5%
metadata-eval83.5%
*-commutative83.5%
associate-/r/83.1%
associate-/l*83.5%
*-commutative83.5%
associate-/l*83.5%
metadata-eval83.5%
*-commutative83.5%
associate-*r/83.4%
Simplified83.4%
Final simplification83.4%
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (* 3.08641975308642e-5 (* (pow PI 2.0) (* (* b angle) (* b angle))))))
double code(double a, double b, double angle) {
return pow(a, 2.0) + (3.08641975308642e-5 * (pow(((double) M_PI), 2.0) * ((b * angle) * (b * angle))));
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + (3.08641975308642e-5 * (Math.pow(Math.PI, 2.0) * ((b * angle) * (b * angle))));
}
def code(a, b, angle): return math.pow(a, 2.0) + (3.08641975308642e-5 * (math.pow(math.pi, 2.0) * ((b * angle) * (b * angle))))
function code(a, b, angle) return Float64((a ^ 2.0) + Float64(3.08641975308642e-5 * Float64((pi ^ 2.0) * Float64(Float64(b * angle) * Float64(b * angle))))) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + (3.08641975308642e-5 * ((pi ^ 2.0) * ((b * angle) * (b * angle)))); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[(N[Power[Pi, 2.0], $MachinePrecision] * N[(N[(b * angle), $MachinePrecision] * N[(b * angle), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot \left({\pi}^{2} \cdot \left(\left(b \cdot angle\right) \cdot \left(b \cdot angle\right)\right)\right)
\end{array}
Initial program 83.4%
Taylor expanded in angle around 0 83.5%
Taylor expanded in angle around 0 67.5%
associate-*r*67.5%
*-commutative67.5%
*-commutative67.5%
unpow267.5%
unpow267.5%
swap-sqr78.6%
Simplified78.6%
Final simplification78.6%
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (* 3.08641975308642e-5 (pow (* angle (* b PI)) 2.0))))
double code(double a, double b, double angle) {
return pow(a, 2.0) + (3.08641975308642e-5 * pow((angle * (b * ((double) M_PI))), 2.0));
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + (3.08641975308642e-5 * Math.pow((angle * (b * Math.PI)), 2.0));
}
def code(a, b, angle): return math.pow(a, 2.0) + (3.08641975308642e-5 * math.pow((angle * (b * math.pi)), 2.0))
function code(a, b, angle) return Float64((a ^ 2.0) + Float64(3.08641975308642e-5 * (Float64(angle * Float64(b * pi)) ^ 2.0))) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + (3.08641975308642e-5 * ((angle * (b * pi)) ^ 2.0)); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[Power[N[(angle * N[(b * Pi), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot {\left(angle \cdot \left(b \cdot \pi\right)\right)}^{2}
\end{array}
Initial program 83.4%
Taylor expanded in angle around 0 83.5%
Taylor expanded in angle around inf 83.5%
metadata-eval83.5%
*-commutative83.5%
associate-/r/83.1%
associate-/l*83.5%
*-commutative83.5%
associate-/l*83.5%
metadata-eval83.5%
*-commutative83.5%
associate-*r/83.4%
Simplified83.4%
Taylor expanded in angle around 0 78.6%
*-commutative78.6%
Simplified78.6%
Taylor expanded in angle around 0 67.5%
associate-*r*67.5%
unpow267.5%
unpow267.5%
unswap-sqr78.6%
*-commutative78.6%
unpow278.6%
swap-sqr78.6%
unpow278.6%
*-commutative78.6%
associate-*r*78.6%
*-commutative78.6%
Simplified78.6%
Final simplification78.6%
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (* 3.08641975308642e-5 (pow (* PI (* b angle)) 2.0))))
double code(double a, double b, double angle) {
return pow(a, 2.0) + (3.08641975308642e-5 * pow((((double) M_PI) * (b * angle)), 2.0));
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + (3.08641975308642e-5 * Math.pow((Math.PI * (b * angle)), 2.0));
}
def code(a, b, angle): return math.pow(a, 2.0) + (3.08641975308642e-5 * math.pow((math.pi * (b * angle)), 2.0))
function code(a, b, angle) return Float64((a ^ 2.0) + Float64(3.08641975308642e-5 * (Float64(pi * Float64(b * angle)) ^ 2.0))) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + (3.08641975308642e-5 * ((pi * (b * angle)) ^ 2.0)); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[Power[N[(Pi * N[(b * angle), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot {\left(\pi \cdot \left(b \cdot angle\right)\right)}^{2}
\end{array}
Initial program 83.4%
Taylor expanded in angle around 0 83.5%
Taylor expanded in angle around inf 83.5%
metadata-eval83.5%
*-commutative83.5%
associate-/r/83.1%
associate-/l*83.5%
*-commutative83.5%
associate-/l*83.5%
metadata-eval83.5%
*-commutative83.5%
associate-*r/83.4%
Simplified83.4%
Taylor expanded in angle around 0 78.6%
*-commutative78.6%
Simplified78.6%
*-commutative78.6%
unpow-prod-down78.6%
associate-*r*78.6%
*-commutative78.6%
associate-*l*78.6%
metadata-eval78.6%
Applied egg-rr78.6%
Final simplification78.6%
(FPCore (a b angle) :precision binary64 (+ (pow a 2.0) (pow (* PI (* angle (* b -0.005555555555555556))) 2.0)))
double code(double a, double b, double angle) {
return pow(a, 2.0) + pow((((double) M_PI) * (angle * (b * -0.005555555555555556))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(a, 2.0) + Math.pow((Math.PI * (angle * (b * -0.005555555555555556))), 2.0);
}
def code(a, b, angle): return math.pow(a, 2.0) + math.pow((math.pi * (angle * (b * -0.005555555555555556))), 2.0)
function code(a, b, angle) return Float64((a ^ 2.0) + (Float64(pi * Float64(angle * Float64(b * -0.005555555555555556))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (a ^ 2.0) + ((pi * (angle * (b * -0.005555555555555556))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[a, 2.0], $MachinePrecision] + N[Power[N[(Pi * N[(angle * N[(b * -0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{a}^{2} + {\left(\pi \cdot \left(angle \cdot \left(b \cdot -0.005555555555555556\right)\right)\right)}^{2}
\end{array}
Initial program 83.4%
unpow283.4%
swap-sqr72.9%
sqr-neg72.9%
swap-sqr83.4%
unpow283.4%
distribute-lft-neg-out83.4%
distribute-rgt-neg-in83.4%
sin-neg83.4%
distribute-rgt-neg-out83.4%
distribute-frac-neg83.4%
unpow283.4%
associate-*l*82.6%
Simplified83.4%
Taylor expanded in angle around 0 83.4%
Taylor expanded in angle around 0 78.5%
expm1-log1p-u62.3%
expm1-udef60.6%
*-commutative60.6%
associate-*r*60.6%
*-commutative60.6%
*-commutative60.6%
associate-*l*60.6%
Applied egg-rr60.6%
expm1-def62.3%
expm1-log1p78.5%
associate-*l*78.6%
*-commutative78.6%
Simplified78.6%
Final simplification78.6%
herbie shell --seed 2023282
(FPCore (a b angle)
:name "ab-angle->ABCF C"
:precision binary64
(+ (pow (* a (cos (* PI (/ angle 180.0)))) 2.0) (pow (* b (sin (* PI (/ angle 180.0)))) 2.0)))