
(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
(fma
(*
a
(fma
(-
(pow (cos (* (* (PI) angle) -0.005555555555555556)) 4.0)
(pow (sin (* (* (PI) 0.005555555555555556) angle)) 4.0))
0.5
0.5))
a
(pow (* b (sin (* (* 0.005555555555555556 angle) (PI)))) 2.0)))\begin{array}{l}
\\
\mathsf{fma}\left(a \cdot \mathsf{fma}\left({\cos \left(\left(\mathsf{PI}\left(\right) \cdot angle\right) \cdot -0.005555555555555556\right)}^{4} - {\sin \left(\left(\mathsf{PI}\left(\right) \cdot 0.005555555555555556\right) \cdot angle\right)}^{4}, 0.5, 0.5\right), a, {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right)\right)}^{2}\right)
\end{array}
Initial program 78.0%
lift-+.f64N/A
lift-pow.f64N/A
unpow2N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites78.1%
lift-pow.f64N/A
lift-cos.f64N/A
lift-/.f64N/A
frac-2negN/A
metadata-evalN/A
distribute-frac-negN/A
lift-*.f64N/A
associate-/l*N/A
div-invN/A
metadata-evalN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
cos-negN/A
lift-cos.f64N/A
unpow2N/A
lift-cos.f64N/A
lift-cos.f64N/A
sqr-cos-aN/A
Applied rewrites78.1%
Applied rewrites78.1%
Taylor expanded in angle around inf
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites78.1%
Final simplification78.1%
(FPCore (a b angle) :precision binary64 (fma (* (+ (* (cos (* (* 0.011111111111111112 (PI)) angle)) 0.5) 0.5) a) a (pow (* b (sin (* (* 0.005555555555555556 angle) (PI)))) 2.0)))
\begin{array}{l}
\\
\mathsf{fma}\left(\left(\cos \left(\left(0.011111111111111112 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.5 + 0.5\right) \cdot a, a, {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right)\right)}^{2}\right)
\end{array}
Initial program 78.0%
lift-+.f64N/A
lift-pow.f64N/A
unpow2N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites78.1%
lift-pow.f64N/A
lift-cos.f64N/A
lift-/.f64N/A
frac-2negN/A
metadata-evalN/A
distribute-frac-negN/A
lift-*.f64N/A
associate-/l*N/A
div-invN/A
metadata-evalN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
cos-negN/A
lift-cos.f64N/A
unpow2N/A
lift-cos.f64N/A
lift-cos.f64N/A
sqr-cos-aN/A
Applied rewrites78.1%
lift-*.f64N/A
lift-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
lift-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
metadata-eval78.1
Applied rewrites78.1%
Final simplification78.1%
(FPCore (a b angle) :precision binary64 (fma (* (fma (cos (* 0.011111111111111112 (* (PI) angle))) 0.5 0.5) a) a (pow (* b (sin (* (* 0.005555555555555556 angle) (PI)))) 2.0)))
\begin{array}{l}
\\
\mathsf{fma}\left(\mathsf{fma}\left(\cos \left(0.011111111111111112 \cdot \left(\mathsf{PI}\left(\right) \cdot angle\right)\right), 0.5, 0.5\right) \cdot a, a, {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right)\right)}^{2}\right)
\end{array}
Initial program 78.0%
lift-+.f64N/A
lift-pow.f64N/A
unpow2N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites78.1%
lift-pow.f64N/A
lift-cos.f64N/A
lift-/.f64N/A
frac-2negN/A
metadata-evalN/A
distribute-frac-negN/A
lift-*.f64N/A
associate-/l*N/A
div-invN/A
metadata-evalN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
cos-negN/A
lift-cos.f64N/A
unpow2N/A
lift-cos.f64N/A
lift-cos.f64N/A
sqr-cos-aN/A
Applied rewrites78.1%
lift-+.f64N/A
+-commutativeN/A
lift-*.f64N/A
*-commutativeN/A
lower-fma.f6478.1
lift-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lift-PI.f64N/A
associate-*r*N/A
lower-*.f64N/A
metadata-evalN/A
lift-PI.f64N/A
lower-*.f6478.1
Applied rewrites78.1%
Final simplification78.1%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (PI) (PI))))
(if (<= b 1.05e-16)
(* (* a a) (pow (cos (* (* (PI) angle) -0.005555555555555556)) 2.0))
(if (<= b 1.1e+151)
(fma (* (* t_0 angle) angle) (* (* b b) 3.08641975308642e-5) (* a a))
(* (* (* (* b angle) (* b angle)) 3.08641975308642e-5) t_0)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\\
\mathbf{if}\;b \leq 1.05 \cdot 10^{-16}:\\
\;\;\;\;\left(a \cdot a\right) \cdot {\cos \left(\left(\mathsf{PI}\left(\right) \cdot angle\right) \cdot -0.005555555555555556\right)}^{2}\\
\mathbf{elif}\;b \leq 1.1 \cdot 10^{+151}:\\
\;\;\;\;\mathsf{fma}\left(\left(t\_0 \cdot angle\right) \cdot angle, \left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(b \cdot angle\right) \cdot \left(b \cdot angle\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot t\_0\\
\end{array}
\end{array}
if b < 1.0500000000000001e-16Initial program 76.0%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6474.4
Applied rewrites74.4%
Taylor expanded in b around 0
log-EN/A
unpow1N/A
*-commutativeN/A
rem-exp-logN/A
*-rgt-identityN/A
log-EN/A
lower-*.f64N/A
Applied rewrites59.9%
if 1.0500000000000001e-16 < b < 1.10000000000000003e151Initial program 61.0%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6459.7
Applied rewrites59.7%
Taylor expanded in angle around 0
Applied rewrites26.1%
Taylor expanded in a around 0
Applied rewrites43.8%
if 1.10000000000000003e151 < b Initial program 99.5%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6498.6
Applied rewrites98.6%
Taylor expanded in angle around 0
Applied rewrites71.0%
Taylor expanded in a around 0
Applied rewrites69.6%
Applied rewrites82.9%
Final simplification61.6%
(FPCore (a b angle) :precision binary64 (fma (* 1.0 a) a (pow (* b (sin (* (* 0.005555555555555556 angle) (PI)))) 2.0)))
\begin{array}{l}
\\
\mathsf{fma}\left(1 \cdot a, a, {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot angle\right) \cdot \mathsf{PI}\left(\right)\right)\right)}^{2}\right)
\end{array}
Initial program 78.0%
lift-+.f64N/A
lift-pow.f64N/A
unpow2N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites78.1%
Taylor expanded in angle around 0
Applied rewrites77.4%
Final simplification77.4%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (PI) (PI))))
(if (<= b 1.05e-16)
(* (fma (cos (* 0.011111111111111112 (* (PI) angle))) 0.5 0.5) (* a a))
(if (<= b 1.1e+151)
(fma (* (* t_0 angle) angle) (* (* b b) 3.08641975308642e-5) (* a a))
(* (* (* (* b angle) (* b angle)) 3.08641975308642e-5) t_0)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\\
\mathbf{if}\;b \leq 1.05 \cdot 10^{-16}:\\
\;\;\;\;\mathsf{fma}\left(\cos \left(0.011111111111111112 \cdot \left(\mathsf{PI}\left(\right) \cdot angle\right)\right), 0.5, 0.5\right) \cdot \left(a \cdot a\right)\\
\mathbf{elif}\;b \leq 1.1 \cdot 10^{+151}:\\
\;\;\;\;\mathsf{fma}\left(\left(t\_0 \cdot angle\right) \cdot angle, \left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(b \cdot angle\right) \cdot \left(b \cdot angle\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot t\_0\\
\end{array}
\end{array}
if b < 1.0500000000000001e-16Initial program 76.0%
lift-+.f64N/A
lift-pow.f64N/A
unpow2N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites76.2%
lift-pow.f64N/A
lift-cos.f64N/A
lift-/.f64N/A
frac-2negN/A
metadata-evalN/A
distribute-frac-negN/A
lift-*.f64N/A
associate-/l*N/A
div-invN/A
metadata-evalN/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
cos-negN/A
lift-cos.f64N/A
unpow2N/A
lift-cos.f64N/A
lift-cos.f64N/A
sqr-cos-aN/A
Applied rewrites76.2%
Taylor expanded in a around inf
*-commutativeN/A
lower-*.f64N/A
+-commutativeN/A
*-commutativeN/A
lower-fma.f64N/A
lower-cos.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f64N/A
unpow2N/A
lower-*.f6459.9
Applied rewrites59.9%
if 1.0500000000000001e-16 < b < 1.10000000000000003e151Initial program 61.0%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6459.7
Applied rewrites59.7%
Taylor expanded in angle around 0
Applied rewrites26.1%
Taylor expanded in a around 0
Applied rewrites43.8%
if 1.10000000000000003e151 < b Initial program 99.5%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6498.6
Applied rewrites98.6%
Taylor expanded in angle around 0
Applied rewrites71.0%
Taylor expanded in a around 0
Applied rewrites69.6%
Applied rewrites82.9%
Final simplification61.6%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (PI) (PI))))
(if (<= b 1.05e-16)
(* a a)
(if (<= b 1.1e+151)
(fma (* (* t_0 angle) angle) (* (* b b) 3.08641975308642e-5) (* a a))
(* (* (* (* b angle) (* b angle)) 3.08641975308642e-5) t_0)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\\
\mathbf{if}\;b \leq 1.05 \cdot 10^{-16}:\\
\;\;\;\;a \cdot a\\
\mathbf{elif}\;b \leq 1.1 \cdot 10^{+151}:\\
\;\;\;\;\mathsf{fma}\left(\left(t\_0 \cdot angle\right) \cdot angle, \left(b \cdot b\right) \cdot 3.08641975308642 \cdot 10^{-5}, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(b \cdot angle\right) \cdot \left(b \cdot angle\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot t\_0\\
\end{array}
\end{array}
if b < 1.0500000000000001e-16Initial program 76.0%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.3
Applied rewrites59.3%
if 1.0500000000000001e-16 < b < 1.10000000000000003e151Initial program 61.0%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6459.7
Applied rewrites59.7%
Taylor expanded in angle around 0
Applied rewrites26.1%
Taylor expanded in a around 0
Applied rewrites43.8%
if 1.10000000000000003e151 < b Initial program 99.5%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6498.6
Applied rewrites98.6%
Taylor expanded in angle around 0
Applied rewrites71.0%
Taylor expanded in a around 0
Applied rewrites69.6%
Applied rewrites82.9%
Final simplification61.2%
(FPCore (a b angle) :precision binary64 (if (<= b 2.1e+134) (* a a) (* (* (* (* b angle) (* b angle)) 3.08641975308642e-5) (* (PI) (PI)))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.1 \cdot 10^{+134}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(b \cdot angle\right) \cdot \left(b \cdot angle\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right)\\
\end{array}
\end{array}
if b < 2.1000000000000001e134Initial program 73.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6455.4
Applied rewrites55.4%
if 2.1000000000000001e134 < b Initial program 97.7%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6496.8
Applied rewrites96.8%
Taylor expanded in angle around 0
Applied rewrites70.3%
Taylor expanded in a around 0
Applied rewrites68.9%
Applied rewrites81.6%
Final simplification60.2%
(FPCore (a b angle) :precision binary64 (if (<= b 2.1e+134) (* a a) (* (* (* (* (* b angle) b) angle) 3.08641975308642e-5) (* (PI) (PI)))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.1 \cdot 10^{+134}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(\left(b \cdot angle\right) \cdot b\right) \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right)\\
\end{array}
\end{array}
if b < 2.1000000000000001e134Initial program 73.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6455.4
Applied rewrites55.4%
if 2.1000000000000001e134 < b Initial program 97.7%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6496.8
Applied rewrites96.8%
Taylor expanded in angle around 0
Applied rewrites70.3%
Taylor expanded in a around 0
Applied rewrites68.9%
Applied rewrites81.4%
Final simplification60.1%
(FPCore (a b angle) :precision binary64 (if (<= b 2.1e+134) (* a a) (* (* (* (* (* b b) angle) angle) 3.08641975308642e-5) (* (PI) (PI)))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.1 \cdot 10^{+134}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(\left(\left(\left(b \cdot b\right) \cdot angle\right) \cdot angle\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right)\\
\end{array}
\end{array}
if b < 2.1000000000000001e134Initial program 73.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6455.4
Applied rewrites55.4%
if 2.1000000000000001e134 < b Initial program 97.7%
rem-exp-logN/A
unpow1N/A
log-powN/A
lift-pow.f64N/A
log-powN/A
*-commutativeN/A
exp-prodN/A
lower-pow.f64N/A
exp-1-eN/A
lower-E.f64N/A
*-commutativeN/A
log-powN/A
lift-pow.f64N/A
lower-log.f6496.8
Applied rewrites96.8%
Taylor expanded in angle around 0
Applied rewrites70.3%
Taylor expanded in a around 0
Applied rewrites68.9%
Applied rewrites75.2%
Final simplification59.0%
(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 78.0%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6451.8
Applied rewrites51.8%
herbie shell --seed 2024288
(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)))