
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* (/ angle 180.0) PI))) (+ (pow (* a (sin t_0)) 2.0) (pow (* b (cos t_0)) 2.0))))
double code(double a, double b, double angle) {
double t_0 = (angle / 180.0) * ((double) M_PI);
return pow((a * sin(t_0)), 2.0) + pow((b * cos(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = (angle / 180.0) * Math.PI;
return Math.pow((a * Math.sin(t_0)), 2.0) + Math.pow((b * Math.cos(t_0)), 2.0);
}
def code(a, b, angle): t_0 = (angle / 180.0) * math.pi return math.pow((a * math.sin(t_0)), 2.0) + math.pow((b * math.cos(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(Float64(angle / 180.0) * pi) return Float64((Float64(a * sin(t_0)) ^ 2.0) + (Float64(b * cos(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = (angle / 180.0) * pi; tmp = ((a * sin(t_0)) ^ 2.0) + ((b * cos(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(angle / 180.0), $MachinePrecision] * Pi), $MachinePrecision]}, N[(N[Power[N[(a * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \pi\\
{\left(a \cdot \sin t_0\right)}^{2} + {\left(b \cdot \cos 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 (* (/ angle 180.0) PI))) (+ (pow (* a (sin t_0)) 2.0) (pow (* b (cos t_0)) 2.0))))
double code(double a, double b, double angle) {
double t_0 = (angle / 180.0) * ((double) M_PI);
return pow((a * sin(t_0)), 2.0) + pow((b * cos(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = (angle / 180.0) * Math.PI;
return Math.pow((a * Math.sin(t_0)), 2.0) + Math.pow((b * Math.cos(t_0)), 2.0);
}
def code(a, b, angle): t_0 = (angle / 180.0) * math.pi return math.pow((a * math.sin(t_0)), 2.0) + math.pow((b * math.cos(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(Float64(angle / 180.0) * pi) return Float64((Float64(a * sin(t_0)) ^ 2.0) + (Float64(b * cos(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = (angle / 180.0) * pi; tmp = ((a * sin(t_0)) ^ 2.0) + ((b * cos(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(angle / 180.0), $MachinePrecision] * Pi), $MachinePrecision]}, N[(N[Power[N[(a * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \pi\\
{\left(a \cdot \sin t_0\right)}^{2} + {\left(b \cdot \cos t_0\right)}^{2}
\end{array}
\end{array}
(FPCore (a b angle) :precision binary64 (+ (pow (* a (sin (/ (* angle PI) 180.0))) 2.0) (pow b 2.0)))
double code(double a, double b, double angle) {
return pow((a * sin(((angle * ((double) M_PI)) / 180.0))), 2.0) + pow(b, 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow((a * Math.sin(((angle * Math.PI) / 180.0))), 2.0) + Math.pow(b, 2.0);
}
def code(a, b, angle): return math.pow((a * math.sin(((angle * math.pi) / 180.0))), 2.0) + math.pow(b, 2.0)
function code(a, b, angle) return Float64((Float64(a * sin(Float64(Float64(angle * pi) / 180.0))) ^ 2.0) + (b ^ 2.0)) end
function tmp = code(a, b, angle) tmp = ((a * sin(((angle * pi) / 180.0))) ^ 2.0) + (b ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[N[(a * N[Sin[N[(N[(angle * Pi), $MachinePrecision] / 180.0), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[b, 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{\left(a \cdot \sin \left(\frac{angle \cdot \pi}{180}\right)\right)}^{2} + {b}^{2}
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
associate-*r/83.3%
Applied egg-rr83.3%
Final simplification83.3%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* a (sin (* (* angle PI) 0.005555555555555556))) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow((a * sin(((angle * ((double) M_PI)) * 0.005555555555555556))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + Math.pow((a * Math.sin(((angle * Math.PI) * 0.005555555555555556))), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow((a * math.sin(((angle * math.pi) * 0.005555555555555556))), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(a * sin(Float64(Float64(angle * pi) * 0.005555555555555556))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((a * sin(((angle * pi) * 0.005555555555555556))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(a * N[Sin[N[(N[(angle * Pi), $MachinePrecision] * 0.005555555555555556), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(a \cdot \sin \left(\left(angle \cdot \pi\right) \cdot 0.005555555555555556\right)\right)}^{2}
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
Taylor expanded in angle around 0 83.2%
Final simplification83.2%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* a (sin (* angle (/ PI 180.0)))) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow((a * sin((angle * (((double) M_PI) / 180.0)))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + Math.pow((a * Math.sin((angle * (Math.PI / 180.0)))), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow((a * math.sin((angle * (math.pi / 180.0)))), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(a * sin(Float64(angle * Float64(pi / 180.0)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((a * sin((angle * (pi / 180.0)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(a * N[Sin[N[(angle * N[(Pi / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(a \cdot \sin \left(angle \cdot \frac{\pi}{180}\right)\right)}^{2}
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
Final simplification83.2%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (* (* 0.005555555555555556 (* (* a PI) (* angle 0.005555555555555556))) (* angle (* a PI)))))
double code(double a, double b, double angle) {
return pow(b, 2.0) + ((0.005555555555555556 * ((a * ((double) M_PI)) * (angle * 0.005555555555555556))) * (angle * (a * ((double) M_PI))));
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + ((0.005555555555555556 * ((a * Math.PI) * (angle * 0.005555555555555556))) * (angle * (a * Math.PI)));
}
def code(a, b, angle): return math.pow(b, 2.0) + ((0.005555555555555556 * ((a * math.pi) * (angle * 0.005555555555555556))) * (angle * (a * math.pi)))
function code(a, b, angle) return Float64((b ^ 2.0) + Float64(Float64(0.005555555555555556 * Float64(Float64(a * pi) * Float64(angle * 0.005555555555555556))) * Float64(angle * Float64(a * pi)))) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((0.005555555555555556 * ((a * pi) * (angle * 0.005555555555555556))) * (angle * (a * pi))); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[(N[(0.005555555555555556 * N[(N[(a * Pi), $MachinePrecision] * N[(angle * 0.005555555555555556), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * N[(angle * N[(a * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + \left(0.005555555555555556 \cdot \left(\left(a \cdot \pi\right) \cdot \left(angle \cdot 0.005555555555555556\right)\right)\right) \cdot \left(angle \cdot \left(a \cdot \pi\right)\right)
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
Taylor expanded in angle around 0 78.1%
*-commutative78.1%
associate-*l*78.1%
Simplified78.1%
unpow278.1%
associate-*r*78.1%
*-commutative78.1%
*-commutative78.1%
associate-*l*78.1%
Applied egg-rr78.1%
Final simplification78.1%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (* (pow (* angle (* a PI)) 2.0) 3.08641975308642e-5)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + (pow((angle * (a * ((double) M_PI))), 2.0) * 3.08641975308642e-5);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + (Math.pow((angle * (a * Math.PI)), 2.0) * 3.08641975308642e-5);
}
def code(a, b, angle): return math.pow(b, 2.0) + (math.pow((angle * (a * math.pi)), 2.0) * 3.08641975308642e-5)
function code(a, b, angle) return Float64((b ^ 2.0) + Float64((Float64(angle * Float64(a * pi)) ^ 2.0) * 3.08641975308642e-5)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + (((angle * (a * pi)) ^ 2.0) * 3.08641975308642e-5); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[(N[Power[N[(angle * N[(a * Pi), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] * 3.08641975308642e-5), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(angle \cdot \left(a \cdot \pi\right)\right)}^{2} \cdot 3.08641975308642 \cdot 10^{-5}
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
Taylor expanded in angle around 0 78.1%
*-commutative78.1%
associate-*l*78.1%
Simplified78.1%
*-commutative78.1%
unpow-prod-down78.1%
metadata-eval78.1%
Applied egg-rr78.1%
Final simplification78.1%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* (* angle PI) (* a 0.005555555555555556)) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow(((angle * ((double) M_PI)) * (a * 0.005555555555555556)), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + Math.pow(((angle * Math.PI) * (a * 0.005555555555555556)), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow(((angle * math.pi) * (a * 0.005555555555555556)), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(Float64(angle * pi) * Float64(a * 0.005555555555555556)) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + (((angle * pi) * (a * 0.005555555555555556)) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(N[(angle * Pi), $MachinePrecision] * N[(a * 0.005555555555555556), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(\left(angle \cdot \pi\right) \cdot \left(a \cdot 0.005555555555555556\right)\right)}^{2}
\end{array}
Initial program 83.0%
*-commutative83.0%
associate-*r/83.1%
associate-*l/83.0%
*-commutative83.0%
*-commutative83.0%
associate-*r/83.0%
associate-*l/83.0%
*-commutative83.0%
Simplified83.0%
Taylor expanded in angle around 0 83.2%
associate-*r/83.3%
Applied egg-rr83.3%
Taylor expanded in angle around 0 66.4%
*-commutative66.4%
*-commutative66.4%
unpow266.4%
unpow266.4%
swap-sqr66.3%
unpow266.3%
swap-sqr78.1%
associate-*r*78.1%
associate-*r*78.1%
metadata-eval78.1%
swap-sqr78.1%
*-commutative78.1%
associate-*r*78.1%
*-commutative78.1%
associate-*r*78.1%
unpow278.1%
Simplified78.1%
Final simplification78.1%
herbie shell --seed 2024012
(FPCore (a b angle)
:name "ab-angle->ABCF A"
:precision binary64
(+ (pow (* a (sin (* (/ angle 180.0) PI))) 2.0) (pow (* b (cos (* (/ angle 180.0) PI))) 2.0)))