
(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))))
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \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 11 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))))
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \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
(let* ((t_0 (cbrt (PI))))
(+
(pow (* (sin (* (* 0.005555555555555556 angle) (PI))) b) 2.0)
(pow
(* (cos (* (* 0.005555555555555556 t_0) (* angle (pow t_0 2.0)))) a)
2.0))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt[3]{\mathsf{PI}\left(\right)}\\
{\left(\sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right) \cdot b\right)}^{2} + {\left(\cos \left(\left(0.005555555555555556 \cdot t\_0\right) \cdot \left(angle \cdot {t\_0}^{2}\right)\right) \cdot a\right)}^{2}
\end{array}
\end{array}
Initial program 81.2%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6481.2
Applied rewrites81.2%
lift-/.f64N/A
frac-2negN/A
neg-mul-1N/A
lift-pow.f64N/A
sqr-powN/A
distribute-rgt-neg-inN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lower-pow.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f64N/A
lower-pow.f64N/A
metadata-eval41.6
Applied rewrites41.6%
lift-/.f64N/A
div-invN/A
metadata-evalN/A
lower-*.f6441.6
Applied rewrites41.6%
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
lift-/.f64N/A
lift-/.f64N/A
frac-timesN/A
lift-/.f64N/A
frac-timesN/A
neg-mul-1N/A
Applied rewrites81.2%
Final simplification81.2%
(FPCore (a b angle) :precision binary64 (+ (pow (* (sin (* (* 0.005555555555555556 angle) (PI))) b) 2.0) (pow (* (cos (* (/ angle 180.0) (PI))) a) 2.0)))
\begin{array}{l}
\\
{\left(\sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right) \cdot b\right)}^{2} + {\left(\cos \left(\frac{angle}{180} \cdot \mathsf{PI}\left(\right)\right) \cdot a\right)}^{2}
\end{array}
Initial program 81.2%
lift-*.f64N/A
*-commutativeN/A
lower-*.f6481.2
lift-*.f64N/A
*-commutativeN/A
lower-*.f6481.2
lift-/.f64N/A
clear-numN/A
associate-/r/N/A
lower-*.f64N/A
metadata-eval81.2
Applied rewrites81.2%
Final simplification81.2%
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* (* 0.005555555555555556 angle) (PI)))) (fma (* (pow (cos t_0) 2.0) a) a (pow (* (sin t_0) b) 2.0))))
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\\
\mathsf{fma}\left({\cos t\_0}^{2} \cdot a, a, {\left(\sin t\_0 \cdot b\right)}^{2}\right)
\end{array}
\end{array}
Initial program 81.2%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6481.2
Applied rewrites81.2%
lift-/.f64N/A
frac-2negN/A
neg-mul-1N/A
lift-pow.f64N/A
sqr-powN/A
distribute-rgt-neg-inN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lower-pow.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f64N/A
lower-pow.f64N/A
metadata-eval41.6
Applied rewrites41.6%
lift-/.f64N/A
div-invN/A
metadata-evalN/A
lower-*.f6441.6
Applied rewrites41.6%
Applied rewrites81.2%
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* (* 0.005555555555555556 angle) (PI)))) (+ (pow (* (cos t_0) a) 2.0) (pow (* (sin t_0) b) 2.0))))
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\\
{\left(\cos t\_0 \cdot a\right)}^{2} + {\left(\sin t\_0 \cdot b\right)}^{2}
\end{array}
\end{array}
Initial program 81.2%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6481.2
Applied rewrites81.2%
lift-/.f64N/A
frac-2negN/A
neg-mul-1N/A
lift-pow.f64N/A
sqr-powN/A
distribute-rgt-neg-inN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lower-pow.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f64N/A
lower-pow.f64N/A
metadata-eval41.6
Applied rewrites41.6%
lift-/.f64N/A
div-invN/A
metadata-evalN/A
lower-*.f6441.6
Applied rewrites41.6%
Applied rewrites81.2%
Final simplification81.2%
(FPCore (a b angle) :precision binary64 (+ (pow (* 1.0 a) 2.0) (pow (* (sin (* (* 0.005555555555555556 angle) (PI))) b) 2.0)))
\begin{array}{l}
\\
{\left(1 \cdot a\right)}^{2} + {\left(\sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right) \cdot b\right)}^{2}
\end{array}
Initial program 81.2%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6481.2
Applied rewrites81.2%
lift-/.f64N/A
frac-2negN/A
neg-mul-1N/A
lift-pow.f64N/A
sqr-powN/A
distribute-rgt-neg-inN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lower-pow.f64N/A
metadata-evalN/A
lower-/.f64N/A
lower-neg.f64N/A
lower-pow.f64N/A
metadata-eval41.6
Applied rewrites41.6%
lift-/.f64N/A
div-invN/A
metadata-evalN/A
lower-*.f6441.6
Applied rewrites41.6%
Taylor expanded in angle around 0
Applied rewrites81.1%
Final simplification81.1%
(FPCore (a b angle) :precision binary64 (+ (pow (* (sin (* (/ angle 180.0) (PI))) b) 2.0) (* a a)))
\begin{array}{l}
\\
{\left(\sin \left(\frac{angle}{180} \cdot \mathsf{PI}\left(\right)\right) \cdot b\right)}^{2} + a \cdot a
\end{array}
Initial program 81.2%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6481.1
Applied rewrites81.1%
Final simplification81.1%
(FPCore (a b angle)
:precision binary64
(if (<= b 1.15e-124)
(* a a)
(if (<= b 6.8e+155)
(fma
(* (* (* (* b b) 3.08641975308642e-5) (PI)) (PI))
(* angle angle)
(* a a))
(* (pow (* (* b (PI)) angle) 2.0) 3.08641975308642e-5))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.15 \cdot 10^{-124}:\\
\;\;\;\;a \cdot a\\
\mathbf{elif}\;b \leq 6.8 \cdot 10^{+155}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(\left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \mathsf{PI}\left(\right)\right) \cdot \mathsf{PI}\left(\right), angle \cdot angle, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;{\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right)}^{2} \cdot 3.08641975308642 \cdot 10^{-5}\\
\end{array}
\end{array}
if b < 1.15000000000000006e-124Initial program 80.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6466.1
Applied rewrites66.1%
if 1.15000000000000006e-124 < b < 6.8000000000000002e155Initial program 73.4%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6473.3
Applied rewrites73.3%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites42.2%
Taylor expanded in a around 0
Applied rewrites63.2%
if 6.8000000000000002e155 < b Initial program 99.8%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6499.8
Applied rewrites99.8%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites50.9%
Taylor expanded in a around 0
Applied rewrites68.5%
Applied rewrites94.3%
Final simplification69.1%
(FPCore (a b angle)
:precision binary64
(if (<= b 1.15e-124)
(* a a)
(if (<= b 9e+155)
(fma
(* (* (* (* b b) 3.08641975308642e-5) (PI)) (PI))
(* angle angle)
(* a a))
(* (* (* (* (* angle angle) 3.08641975308642e-5) b) (* b (PI))) (PI)))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.15 \cdot 10^{-124}:\\
\;\;\;\;a \cdot a\\
\mathbf{elif}\;b \leq 9 \cdot 10^{+155}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(\left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \mathsf{PI}\left(\right)\right) \cdot \mathsf{PI}\left(\right), angle \cdot angle, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(\left(angle \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right) \cdot \left(b \cdot \mathsf{PI}\left(\right)\right)\right) \cdot \mathsf{PI}\left(\right)\\
\end{array}
\end{array}
if b < 1.15000000000000006e-124Initial program 80.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6466.1
Applied rewrites66.1%
if 1.15000000000000006e-124 < b < 8.99999999999999947e155Initial program 73.4%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6473.3
Applied rewrites73.3%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites42.2%
Taylor expanded in a around 0
Applied rewrites63.2%
if 8.99999999999999947e155 < b Initial program 99.8%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6499.8
Applied rewrites99.8%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites50.9%
Taylor expanded in a around 0
Applied rewrites68.5%
Applied rewrites78.4%
Final simplification67.0%
(FPCore (a b angle) :precision binary64 (if (<= b 2.5e+161) (* a a) (* (* (* (* (* angle angle) 3.08641975308642e-5) b) (* b (PI))) (PI))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.5 \cdot 10^{+161}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(\left(angle \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right) \cdot \left(b \cdot \mathsf{PI}\left(\right)\right)\right) \cdot \mathsf{PI}\left(\right)\\
\end{array}
\end{array}
if b < 2.4999999999999998e161Initial program 78.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6461.7
Applied rewrites61.7%
if 2.4999999999999998e161 < b Initial program 99.8%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6499.8
Applied rewrites99.8%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites52.3%
Taylor expanded in a around 0
Applied rewrites70.4%
Applied rewrites77.8%
(FPCore (a b angle) :precision binary64 (if (<= b 4.2e+161) (* a a) (* (* (* (* b b) (PI)) (PI)) (* (* 3.08641975308642e-5 angle) angle))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 4.2 \cdot 10^{+161}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(b \cdot b\right) \cdot \mathsf{PI}\left(\right)\right) \cdot \mathsf{PI}\left(\right)\right) \cdot \left(\left(3.08641975308642 \cdot 10^{-5} \cdot angle\right) \cdot angle\right)\\
\end{array}
\end{array}
if b < 4.2e161Initial program 78.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6461.7
Applied rewrites61.7%
if 4.2e161 < b Initial program 99.8%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lift-PI.f64N/A
add-cube-cbrtN/A
associate-*l*N/A
div-invN/A
times-fracN/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
lower-/.f64N/A
pow2N/A
lower-pow.f64N/A
lift-PI.f64N/A
lower-cbrt.f64N/A
inv-powN/A
lower-pow.f6499.8
Applied rewrites99.8%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites52.3%
Taylor expanded in a around 0
Applied rewrites70.4%
Applied rewrites70.4%
Final simplification62.8%
(FPCore (a b angle) :precision binary64 (* a a))
double code(double a, double b, double angle) {
return a * a;
}
real(8) function code(a, b, angle)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: angle
code = a * a
end function
public static double code(double a, double b, double angle) {
return a * a;
}
def code(a, b, angle): return a * a
function code(a, b, angle) return Float64(a * a) end
function tmp = code(a, b, angle) tmp = a * a; end
code[a_, b_, angle_] := N[(a * a), $MachinePrecision]
\begin{array}{l}
\\
a \cdot a
\end{array}
Initial program 81.2%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6456.9
Applied rewrites56.9%
herbie shell --seed 2024283
(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)))