
(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 4 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 (* 0.005555555555555556 PI)))) 2.0) (pow b 2.0)))
double code(double a, double b, double angle) {
return pow((a * sin((angle * (0.005555555555555556 * ((double) M_PI))))), 2.0) + pow(b, 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow((a * Math.sin((angle * (0.005555555555555556 * Math.PI)))), 2.0) + Math.pow(b, 2.0);
}
def code(a, b, angle): return math.pow((a * math.sin((angle * (0.005555555555555556 * math.pi)))), 2.0) + math.pow(b, 2.0)
function code(a, b, angle) return Float64((Float64(a * sin(Float64(angle * Float64(0.005555555555555556 * pi)))) ^ 2.0) + (b ^ 2.0)) end
function tmp = code(a, b, angle) tmp = ((a * sin((angle * (0.005555555555555556 * pi)))) ^ 2.0) + (b ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[N[(a * N[Sin[N[(angle * N[(0.005555555555555556 * Pi), $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(0.005555555555555556 \cdot \pi\right)\right)\right)}^{2} + {b}^{2}
\end{array}
Initial program 81.3%
Taylor expanded in angle around 0 81.9%
Taylor expanded in angle around inf 81.8%
*-commutative81.8%
associate-*r*81.9%
*-commutative81.9%
Simplified81.9%
Final simplification81.9%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (* 3.08641975308642e-5 (pow (* angle (* a PI)) 2.0))))
double code(double a, double b, double angle) {
return pow(b, 2.0) + (3.08641975308642e-5 * pow((angle * (a * ((double) M_PI))), 2.0));
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + (3.08641975308642e-5 * Math.pow((angle * (a * Math.PI)), 2.0));
}
def code(a, b, angle): return math.pow(b, 2.0) + (3.08641975308642e-5 * math.pow((angle * (a * math.pi)), 2.0))
function code(a, b, angle) return Float64((b ^ 2.0) + Float64(3.08641975308642e-5 * (Float64(angle * Float64(a * pi)) ^ 2.0))) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + (3.08641975308642e-5 * ((angle * (a * pi)) ^ 2.0)); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[(3.08641975308642e-5 * N[Power[N[(angle * N[(a * Pi), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + 3.08641975308642 \cdot 10^{-5} \cdot {\left(angle \cdot \left(a \cdot \pi\right)\right)}^{2}
\end{array}
Initial program 81.3%
Taylor expanded in angle around 0 81.9%
Taylor expanded in angle around 0 75.8%
*-commutative75.8%
Simplified75.8%
Taylor expanded in angle around 0 64.8%
unpow264.8%
*-commutative64.8%
*-commutative64.8%
unpow264.8%
unpow264.8%
swap-sqr64.8%
swap-sqr75.8%
associate-*r*75.8%
associate-*r*75.8%
unpow275.8%
associate-*r*75.8%
*-commutative75.8%
Simplified75.8%
Final simplification75.8%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* a (* 0.005555555555555556 (* angle PI))) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow((a * (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 * (0.005555555555555556 * (angle * Math.PI))), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow((a * (0.005555555555555556 * (angle * math.pi))), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(a * Float64(0.005555555555555556 * Float64(angle * pi))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((a * (0.005555555555555556 * (angle * pi))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(a * N[(0.005555555555555556 * N[(angle * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(a \cdot \left(0.005555555555555556 \cdot \left(angle \cdot \pi\right)\right)\right)}^{2}
\end{array}
Initial program 81.3%
Taylor expanded in angle around 0 81.9%
Taylor expanded in angle around 0 75.8%
Final simplification75.8%
(FPCore (a b angle) :precision binary64 (+ (pow b 2.0) (pow (* a (* angle (* 0.005555555555555556 PI))) 2.0)))
double code(double a, double b, double angle) {
return pow(b, 2.0) + pow((a * (angle * (0.005555555555555556 * ((double) M_PI)))), 2.0);
}
public static double code(double a, double b, double angle) {
return Math.pow(b, 2.0) + Math.pow((a * (angle * (0.005555555555555556 * Math.PI))), 2.0);
}
def code(a, b, angle): return math.pow(b, 2.0) + math.pow((a * (angle * (0.005555555555555556 * math.pi))), 2.0)
function code(a, b, angle) return Float64((b ^ 2.0) + (Float64(a * Float64(angle * Float64(0.005555555555555556 * pi))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (b ^ 2.0) + ((a * (angle * (0.005555555555555556 * pi))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[Power[b, 2.0], $MachinePrecision] + N[Power[N[(a * N[(angle * N[(0.005555555555555556 * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
{b}^{2} + {\left(a \cdot \left(angle \cdot \left(0.005555555555555556 \cdot \pi\right)\right)\right)}^{2}
\end{array}
Initial program 81.3%
Taylor expanded in angle around 0 81.9%
Taylor expanded in angle around 0 75.8%
*-commutative75.8%
associate-*r*75.8%
*-commutative75.8%
Simplified75.8%
Final simplification75.8%
herbie shell --seed 2023243
(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)))