
(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 5 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 0.005555555555555556)))) 2.0) (pow b 2.0)))
double code(double a, double b, double angle) {
return pow((a * sin((angle * (((double) M_PI) * 0.005555555555555556)))), 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 * 0.005555555555555556)))), 2.0) + Math.pow(b, 2.0);
}
def code(a, b, angle): return math.pow((a * math.sin((angle * (math.pi * 0.005555555555555556)))), 2.0) + math.pow(b, 2.0)
function code(a, b, angle) return Float64((Float64(a * sin(Float64(angle * Float64(pi * 0.005555555555555556)))) ^ 2.0) + (b ^ 2.0)) end
function tmp = code(a, b, angle) tmp = ((a * sin((angle * (pi * 0.005555555555555556)))) ^ 2.0) + (b ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[N[(a * N[Sin[N[(angle * N[(Pi * 0.005555555555555556), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[b, 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{\left(a \cdot \sin \left(angle \cdot \left(\pi \cdot 0.005555555555555556\right)\right)\right)}^{2} + {b}^{2}
\end{array}
Initial program 78.4%
associate-*l/78.4%
associate-/l*78.5%
*-rgt-identity78.5%
metadata-eval78.5%
associate-*l/78.5%
associate-/l*78.5%
metadata-eval78.5%
metadata-eval78.5%
Simplified78.4%
Taylor expanded in angle around 0 78.8%
Final simplification78.8%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* a (sin (* 0.005555555555555556 (* angle PI)))) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow((a * sin((0.005555555555555556 * (angle * ((double) M_PI))))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + Math.pow((a * Math.sin((0.005555555555555556 * (angle * Math.PI)))), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow((a * math.sin((0.005555555555555556 * (angle * math.pi)))), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(a * sin(Float64(0.005555555555555556 * Float64(angle * pi)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((a * sin((0.005555555555555556 * (angle * pi)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(a * N[Sin[N[(0.005555555555555556 * N[(angle * Pi), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(a \cdot \sin \left(0.005555555555555556 \cdot \left(angle \cdot \pi\right)\right)\right)}^{2}
\end{array}
Initial program 78.4%
associate-*l/78.4%
associate-/l*78.5%
*-rgt-identity78.5%
metadata-eval78.5%
associate-*l/78.5%
associate-/l*78.5%
metadata-eval78.5%
metadata-eval78.5%
Simplified78.4%
Taylor expanded in angle around 0 78.8%
Taylor expanded in a around 0 71.1%
unpow271.1%
*-commutative71.1%
associate-*r*71.1%
unpow271.1%
swap-sqr78.8%
unpow278.8%
associate-*r*78.7%
*-commutative78.7%
Simplified78.7%
Final simplification78.7%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (* 3.08641975308642e-5 (* PI (* (* angle (* a PI)) (* a angle))))))
double code(double a, double b, double angle) {
return pow(b, 2.0) + (3.08641975308642e-5 * (((double) M_PI) * ((angle * (a * ((double) M_PI))) * (a * angle))));
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + (3.08641975308642e-5 * (Math.PI * ((angle * (a * Math.PI)) * (a * angle))));
}
def code(a, b, angle): return math.pow(b, 2.0) + (3.08641975308642e-5 * (math.pi * ((angle * (a * math.pi)) * (a * angle))))
function code(a, b, angle) return Float64((b ^ 2.0) + Float64(3.08641975308642e-5 * Float64(pi * Float64(Float64(angle * Float64(a * pi)) * Float64(a * angle))))) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + (3.08641975308642e-5 * (pi * ((angle * (a * pi)) * (a * angle)))); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[(Pi * N[(N[(angle * N[(a * Pi), $MachinePrecision]), $MachinePrecision] * N[(a * angle), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot \left(\pi \cdot \left(\left(angle \cdot \left(a \cdot \pi\right)\right) \cdot \left(a \cdot angle\right)\right)\right)
\end{array}
Initial program 78.4%
associate-*l/78.4%
associate-/l*78.5%
*-rgt-identity78.5%
metadata-eval78.5%
associate-*l/78.5%
associate-/l*78.5%
metadata-eval78.5%
metadata-eval78.5%
Simplified78.4%
Taylor expanded in angle around 0 78.8%
expm1-log1p-u78.8%
Applied egg-rr78.8%
Taylor expanded in angle around 0 63.1%
unpow263.1%
unpow263.1%
unpow263.1%
swap-sqr63.1%
swap-sqr72.7%
unpow272.7%
Simplified72.7%
unpow272.7%
associate-*r*72.7%
associate-*r*72.7%
*-commutative72.7%
associate-*l*72.7%
Applied egg-rr72.7%
Final simplification72.7%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (* 3.08641975308642e-5 (* (* (* a angle) (* a angle)) (* PI PI)))))
double code(double a, double b, double angle) {
return pow(b, 2.0) + (3.08641975308642e-5 * (((a * angle) * (a * angle)) * (((double) M_PI) * ((double) M_PI))));
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + (3.08641975308642e-5 * (((a * angle) * (a * angle)) * (Math.PI * Math.PI)));
}
def code(a, b, angle): return math.pow(b, 2.0) + (3.08641975308642e-5 * (((a * angle) * (a * angle)) * (math.pi * math.pi)))
function code(a, b, angle) return Float64((b ^ 2.0) + Float64(3.08641975308642e-5 * Float64(Float64(Float64(a * angle) * Float64(a * angle)) * Float64(pi * pi)))) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + (3.08641975308642e-5 * (((a * angle) * (a * angle)) * (pi * pi))); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[(N[(N[(a * angle), $MachinePrecision] * N[(a * angle), $MachinePrecision]), $MachinePrecision] * N[(Pi * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(a \cdot angle\right) \cdot \left(a \cdot angle\right)\right) \cdot \left(\pi \cdot \pi\right)\right)
\end{array}
Initial program 78.4%
associate-*l/78.4%
associate-/l*78.5%
*-rgt-identity78.5%
metadata-eval78.5%
associate-*l/78.5%
associate-/l*78.5%
metadata-eval78.5%
metadata-eval78.5%
Simplified78.4%
Taylor expanded in angle around 0 78.8%
expm1-log1p-u78.8%
Applied egg-rr78.8%
Taylor expanded in angle around 0 63.1%
unpow263.1%
unpow263.1%
unpow263.1%
swap-sqr63.1%
swap-sqr72.7%
unpow272.7%
Simplified72.7%
unpow272.7%
associate-*r*72.7%
associate-*r*72.7%
swap-sqr72.7%
Applied egg-rr72.7%
Final simplification72.7%
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* angle (* a PI)))) (+ (pow b 2.0) (* 3.08641975308642e-5 (* t_0 t_0)))))
double code(double a, double b, double angle) {
double t_0 = angle * (a * ((double) M_PI));
return pow(b, 2.0) + (3.08641975308642e-5 * (t_0 * t_0));
}
public static double code(double a, double b, double angle) {
double t_0 = angle * (a * Math.PI);
return Math.pow(b, 2.0) + (3.08641975308642e-5 * (t_0 * t_0));
}
def code(a, b, angle): t_0 = angle * (a * math.pi) return math.pow(b, 2.0) + (3.08641975308642e-5 * (t_0 * t_0))
function code(a, b, angle) t_0 = Float64(angle * Float64(a * pi)) return Float64((b ^ 2.0) + Float64(3.08641975308642e-5 * Float64(t_0 * t_0))) end
function tmp = code(a, b, angle) t_0 = angle * (a * pi); tmp = (b ^ 2.0) + (3.08641975308642e-5 * (t_0 * t_0)); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(angle * N[(a * Pi), $MachinePrecision]), $MachinePrecision]}, N[(N[Power[b, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[(t$95$0 * t$95$0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := angle \cdot \left(a \cdot \pi\right)\\
{b}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot \left(t\_0 \cdot t\_0\right)
\end{array}
\end{array}
Initial program 78.4%
associate-*l/78.4%
associate-/l*78.5%
*-rgt-identity78.5%
metadata-eval78.5%
associate-*l/78.5%
associate-/l*78.5%
metadata-eval78.5%
metadata-eval78.5%
Simplified78.4%
Taylor expanded in angle around 0 78.8%
expm1-log1p-u78.8%
Applied egg-rr78.8%
Taylor expanded in angle around 0 63.1%
unpow263.1%
unpow263.1%
unpow263.1%
swap-sqr63.1%
swap-sqr72.7%
unpow272.7%
Simplified72.7%
unpow272.7%
*-commutative72.7%
associate-*l*72.7%
*-commutative72.7%
associate-*l*72.7%
Applied egg-rr72.7%
Final simplification72.7%
herbie shell --seed 2024096
(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)))