
(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 14 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 (pow (PI) 0.25)))
(+
(pow
(* (sin (* (* (* (* 0.005555555555555556 (sqrt (PI))) angle) t_0) t_0)) b)
2.0)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\mathsf{PI}\left(\right)}^{0.25}\\
{\left(\sin \left(\left(\left(\left(0.005555555555555556 \cdot \sqrt{\mathsf{PI}\left(\right)}\right) \cdot angle\right) \cdot t\_0\right) \cdot t\_0\right) \cdot b\right)}^{2} + a \cdot a
\end{array}
\end{array}
Initial program 82.6%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites82.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6482.8
Applied rewrites82.8%
Final simplification82.8%
(FPCore (a b angle) :precision binary64 (+ (pow (* (sin (* (- 0.005555555555555556) (/ (PI) (/ -1.0 angle)))) b) 2.0) (* a a)))
\begin{array}{l}
\\
{\left(\sin \left(\left(-0.005555555555555556\right) \cdot \frac{\mathsf{PI}\left(\right)}{\frac{-1}{angle}}\right) \cdot b\right)}^{2} + a \cdot a
\end{array}
Initial program 82.6%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites82.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6482.8
Applied rewrites82.8%
lift-*.f64N/A
lift-*.f64N/A
associate-*r*N/A
lift-pow.f64N/A
lift-pow.f64N/A
pow-prod-upN/A
metadata-evalN/A
pow1/2N/A
lift-sqrt.f64N/A
*-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
metadata-evalN/A
div-invN/A
lift-/.f64N/A
associate-*r*N/A
Applied rewrites82.8%
lift-/.f64N/A
frac-2negN/A
lower-/.f64N/A
lower-neg.f64N/A
lift-pow.f64N/A
unpow-1N/A
distribute-neg-fracN/A
metadata-evalN/A
lower-/.f6482.8
Applied rewrites82.8%
Final simplification82.8%
(FPCore (a b angle) :precision binary64 (+ (pow (* (sin (/ (* (PI) angle) 180.0)) b) 2.0) (* a a)))
\begin{array}{l}
\\
{\left(\sin \left(\frac{\mathsf{PI}\left(\right) \cdot angle}{180}\right) \cdot b\right)}^{2} + a \cdot a
\end{array}
Initial program 82.6%
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
*-commutativeN/A
lower-*.f6482.6
Applied rewrites82.6%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6482.7
Applied rewrites82.7%
Final simplification82.7%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (* 0.005555555555555556 (PI)) angle)))
(if (<= b 2.1e-131)
(* (pow (cos t_0) 2.0) (* a a))
(+ (pow (* t_0 b) 2.0) (* a a)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\\
\mathbf{if}\;b \leq 2.1 \cdot 10^{-131}:\\
\;\;\;\;{\cos t\_0}^{2} \cdot \left(a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;{\left(t\_0 \cdot b\right)}^{2} + a \cdot a\\
\end{array}
\end{array}
if b < 2.09999999999999997e-131Initial program 85.5%
Taylor expanded in b around 0
*-commutativeN/A
lower-*.f64N/A
lower-pow.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-cos.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f64N/A
unpow2N/A
lower-*.f6470.7
Applied rewrites70.7%
if 2.09999999999999997e-131 < b Initial program 78.1%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites78.5%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6478.1
Applied rewrites78.1%
Taylor expanded in angle around 0
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f6473.3
Applied rewrites73.3%
Final simplification71.8%
(FPCore (a b angle) :precision binary64 (if (<= b 2.1e-131) (* (pow (cos (* -0.005555555555555556 (* (PI) angle))) 2.0) (* a a)) (+ (pow (* (* (* 0.005555555555555556 (PI)) angle) b) 2.0) (* a a))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.1 \cdot 10^{-131}:\\
\;\;\;\;{\cos \left(-0.005555555555555556 \cdot \left(\mathsf{PI}\left(\right) \cdot angle\right)\right)}^{2} \cdot \left(a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;{\left(\left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot b\right)}^{2} + a \cdot a\\
\end{array}
\end{array}
if b < 2.09999999999999997e-131Initial program 85.5%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
lift-*.f64N/A
*-commutativeN/A
unpow-prod-downN/A
lower-fma.f64N/A
Applied rewrites77.3%
Taylor expanded in b around 0
*-commutativeN/A
lower-*.f64N/A
lower-pow.f64N/A
lower-cos.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f64N/A
unpow2N/A
lower-*.f6470.7
Applied rewrites70.7%
if 2.09999999999999997e-131 < b Initial program 78.1%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites78.5%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6478.1
Applied rewrites78.1%
Taylor expanded in angle around 0
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f6473.3
Applied rewrites73.3%
Final simplification71.8%
(FPCore (a b angle) :precision binary64 (+ (pow (* (sin (* (* (PI) angle) 0.005555555555555556)) b) 2.0) (* a a)))
\begin{array}{l}
\\
{\left(\sin \left(\left(\mathsf{PI}\left(\right) \cdot angle\right) \cdot 0.005555555555555556\right) \cdot b\right)}^{2} + a \cdot a
\end{array}
Initial program 82.6%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites82.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6482.8
Applied rewrites82.8%
lift-*.f64N/A
lift-*.f64N/A
associate-*r*N/A
lift-pow.f64N/A
lift-pow.f64N/A
pow-prod-upN/A
metadata-evalN/A
pow1/2N/A
lift-sqrt.f64N/A
*-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
metadata-evalN/A
div-invN/A
lift-/.f64N/A
associate-*r*N/A
Applied rewrites82.7%
Final simplification82.7%
(FPCore (a b angle) :precision binary64 (if (<= b 9.5e-129) (* a a) (+ (pow (* (* (* 0.005555555555555556 (PI)) angle) b) 2.0) (* a a))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 9.5 \cdot 10^{-129}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;{\left(\left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot b\right)}^{2} + a \cdot a\\
\end{array}
\end{array}
if b < 9.5000000000000006e-129Initial program 85.5%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6471.0
Applied rewrites71.0%
if 9.5000000000000006e-129 < b Initial program 78.1%
lift-*.f64N/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*l*N/A
rem-square-sqrtN/A
associate-*l*N/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
*-commutativeN/A
Applied rewrites78.5%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6478.1
Applied rewrites78.1%
Taylor expanded in angle around 0
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f6473.3
Applied rewrites73.3%
Final simplification71.9%
(FPCore (a b angle)
:precision binary64
(if (<= a 1.3e+128)
(fma
(*
(* (* (PI) (PI)) angle)
(fma (* 3.08641975308642e-5 b) b (* -3.08641975308642e-5 (* a a))))
angle
(* a a))
(* a a)))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;a \leq 1.3 \cdot 10^{+128}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot \mathsf{fma}\left(3.08641975308642 \cdot 10^{-5} \cdot b, b, -3.08641975308642 \cdot 10^{-5} \cdot \left(a \cdot a\right)\right), angle, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;a \cdot a\\
\end{array}
\end{array}
if a < 1.3e128Initial program 81.0%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites81.1%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites50.8%
Applied rewrites54.1%
if 1.3e128 < a Initial program 94.5%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6494.2
Applied rewrites94.2%
Final simplification58.7%
(FPCore (a b angle)
:precision binary64
(if (<= a 3.2e+134)
(fma
(* (* (* b b) 3.08641975308642e-5) (* (PI) (PI)))
(* angle angle)
(* a a))
(* a a)))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;a \leq 3.2 \cdot 10^{+134}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right), angle \cdot angle, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;a \cdot a\\
\end{array}
\end{array}
if a < 3.2000000000000001e134Initial program 80.9%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites80.9%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites50.8%
Taylor expanded in b around inf
Applied rewrites64.6%
if 3.2000000000000001e134 < a Initial program 96.9%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6496.9
Applied rewrites96.9%
Final simplification68.0%
(FPCore (a b angle)
:precision binary64
(if (<= a 3.2e+134)
(fma
(* (* (* (* b b) 3.08641975308642e-5) (PI)) (PI))
(* angle angle)
(* a a))
(* a a)))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;a \leq 3.2 \cdot 10^{+134}:\\
\;\;\;\;\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}:\\
\;\;\;\;a \cdot a\\
\end{array}
\end{array}
if a < 3.2000000000000001e134Initial program 80.9%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites80.9%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites50.8%
Taylor expanded in b around inf
Applied rewrites64.6%
if 3.2000000000000001e134 < a Initial program 96.9%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6496.9
Applied rewrites96.9%
Final simplification68.0%
(FPCore (a b angle) :precision binary64 (if (<= b 3.25e+66) (* a a) (* (* (* (PI) (PI)) b) (* (* (* angle angle) 3.08641975308642e-5) b))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.25 \cdot 10^{+66}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right) \cdot b\right) \cdot \left(\left(\left(angle \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right)\\
\end{array}
\end{array}
if b < 3.2500000000000001e66Initial program 83.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6467.7
Applied rewrites67.7%
if 3.2500000000000001e66 < b Initial program 78.7%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites78.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites45.1%
Taylor expanded in b around inf
Applied rewrites58.8%
Applied rewrites63.1%
Final simplification66.9%
(FPCore (a b angle) :precision binary64 (if (<= b 3.25e+66) (* a a) (* (* (* (* angle angle) 3.08641975308642e-5) (* b b)) (* (PI) (PI)))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.25 \cdot 10^{+66}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(angle \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \left(b \cdot b\right)\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right)\\
\end{array}
\end{array}
if b < 3.2500000000000001e66Initial program 83.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6467.7
Applied rewrites67.7%
if 3.2500000000000001e66 < b Initial program 78.7%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites78.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites45.1%
Taylor expanded in b around inf
Applied rewrites58.8%
Applied rewrites58.8%
Final simplification66.2%
(FPCore (a b angle) :precision binary64 (if (<= b 3.25e+66) (* a a) (* (* (* (* (PI) (PI)) b) b) (* (* angle angle) 3.08641975308642e-5))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.25 \cdot 10^{+66}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right) \cdot b\right) \cdot b\right) \cdot \left(\left(angle \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right)\\
\end{array}
\end{array}
if b < 3.2500000000000001e66Initial program 83.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6467.7
Applied rewrites67.7%
if 3.2500000000000001e66 < b Initial program 78.7%
lift-*.f64N/A
*-commutativeN/A
lift-PI.f64N/A
add-sqr-sqrtN/A
associate-*r*N/A
add-cube-cbrtN/A
pow3N/A
sqrt-pow1N/A
metadata-evalN/A
metadata-evalN/A
pow-plusN/A
pow1/2N/A
*-commutativeN/A
associate-*r*N/A
pow1/2N/A
add-sqr-sqrtN/A
cbrt-prodN/A
pow2N/A
pow-powN/A
metadata-evalN/A
unpow1N/A
Applied rewrites78.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites45.1%
Taylor expanded in b around inf
Applied rewrites58.8%
Final simplification66.2%
(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 82.6%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6460.1
Applied rewrites60.1%
herbie shell --seed 2024263
(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)))