
(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 (+ (pow (* a (cos (/ (* (pow (PI) 0.25) (* (pow (PI) 0.75) angle)) 180.0))) 2.0) (pow (* b (sin (* (* 0.005555555555555556 (PI)) angle))) 2.0)))
\begin{array}{l}
\\
{\left(a \cdot \cos \left(\frac{{\mathsf{PI}\left(\right)}^{0.25} \cdot \left({\mathsf{PI}\left(\right)}^{0.75} \cdot angle\right)}{180}\right)\right)}^{2} + {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right)\right)}^{2}
\end{array}
Initial program 84.8%
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
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
lift-*.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6485.0
Applied rewrites85.0%
(FPCore (a b angle) :precision binary64 (+ (pow (* a (sin (fma (/ (PI) -180.0) angle (/ (PI) 2.0)))) 2.0) (pow (* b (sin (* (* 0.005555555555555556 (PI)) angle))) 2.0)))
\begin{array}{l}
\\
{\left(a \cdot \sin \left(\mathsf{fma}\left(\frac{\mathsf{PI}\left(\right)}{-180}, angle, \frac{\mathsf{PI}\left(\right)}{2}\right)\right)\right)}^{2} + {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right)\right)}^{2}
\end{array}
Initial program 84.8%
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
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
lift-*.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6485.0
Applied rewrites85.0%
lift-cos.f64N/A
lift-/.f64N/A
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
unpow1N/A
associate-*r/N/A
lift-PI.f64N/A
lift-PI.f64N/A
lift-/.f64N/A
lift-*.f64N/A
cos-neg-revN/A
Applied rewrites85.0%
(FPCore (a b angle) :precision binary64 (+ (pow (* a (cos (/ (* (PI) angle) 180.0))) 2.0) (pow (* b (sin (* (* 0.005555555555555556 (PI)) angle))) 2.0)))
\begin{array}{l}
\\
{\left(a \cdot \cos \left(\frac{\mathsf{PI}\left(\right) \cdot angle}{180}\right)\right)}^{2} + {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right)\right)}^{2}
\end{array}
Initial program 84.8%
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
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
lift-*.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6485.0
Applied rewrites85.0%
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
unpow1N/A
lower-*.f6484.9
Applied rewrites84.9%
(FPCore (a b angle) :precision binary64 (let* ((t_0 (* (* 0.005555555555555556 (PI)) angle))) (+ (pow (* a (cos t_0)) 2.0) (pow (* b (sin t_0)) 2.0))))
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\\
{\left(a \cdot \cos t\_0\right)}^{2} + {\left(b \cdot \sin t\_0\right)}^{2}
\end{array}
\end{array}
Initial program 84.8%
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
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
lift-*.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6485.0
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-cos.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6484.9
Applied rewrites84.9%
(FPCore (a b angle) :precision binary64 (+ (pow (* a 1.0) 2.0) (pow (* b (sin (* (* 0.005555555555555556 (PI)) angle))) 2.0)))
\begin{array}{l}
\\
{\left(a \cdot 1\right)}^{2} + {\left(b \cdot \sin \left(\left(0.005555555555555556 \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right)\right)}^{2}
\end{array}
Initial program 84.8%
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
lower-*.f64N/A
lift-PI.f64N/A
pow1/2N/A
sqrt-pow1N/A
lower-pow.f64N/A
metadata-evalN/A
lift-/.f64N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
lift-*.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
associate-*r/N/A
lower-/.f64N/A
Applied rewrites85.0%
Taylor expanded in angle around inf
*-commutativeN/A
associate-*r*N/A
lower-sin.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lower-PI.f6485.0
Applied rewrites85.0%
Taylor expanded in angle around 0
Applied rewrites84.9%
(FPCore (a b angle) :precision binary64 (+ (* a a) (pow (* b (sin (* (PI) (/ angle 180.0)))) 2.0)))
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(\mathsf{PI}\left(\right) \cdot \frac{angle}{180}\right)\right)}^{2}
\end{array}
Initial program 84.8%
lift-pow.f64N/A
pow-to-expN/A
sinh-+-cosh-revN/A
flip-+N/A
sinh-coshN/A
sinh---cosh-revN/A
lower-/.f64N/A
lower-exp.f64N/A
Applied rewrites82.9%
Taylor expanded in angle around 0
exp-negN/A
rem-exp-logN/A
remove-double-divN/A
unpow2N/A
lower-*.f6484.9
Applied rewrites84.9%
(FPCore (a b angle)
:precision binary64
(if (<= b 2.4e-108)
(* (pow (cos (* -0.005555555555555556 (* (PI) angle))) 2.0) (* a a))
(if (<= b 7.4e+146)
(fma
(* (* (* (* (PI) (PI)) 3.08641975308642e-5) b) b)
(* angle angle)
(* a a))
(* (pow (* (* b (PI)) angle) 2.0) 3.08641975308642e-5))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.4 \cdot 10^{-108}:\\
\;\;\;\;{\cos \left(-0.005555555555555556 \cdot \left(\mathsf{PI}\left(\right) \cdot angle\right)\right)}^{2} \cdot \left(a \cdot a\right)\\
\mathbf{elif}\;b \leq 7.4 \cdot 10^{+146}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(\left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right) \cdot b, 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 < 2.40000000000000017e-108Initial program 85.2%
lift-pow.f64N/A
pow-to-expN/A
sinh-+-cosh-revN/A
flip-+N/A
sinh-coshN/A
sinh---cosh-revN/A
lower-/.f64N/A
lower-exp.f64N/A
Applied rewrites82.9%
Taylor expanded in b around 0
rec-expN/A
remove-double-negN/A
rem-exp-logN/A
*-commutativeN/A
lower-*.f64N/A
lower-pow.f64N/A
cos-neg-revN/A
lower-cos.f64N/A
distribute-lft-neg-inN/A
lower-*.f64N/A
metadata-evalN/A
*-commutativeN/A
lower-*.f64N/A
lower-PI.f64N/A
unpow2N/A
lower-*.f6464.6
Applied rewrites64.6%
if 2.40000000000000017e-108 < b < 7.40000000000000009e146Initial program 75.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites40.3%
Taylor expanded in a around 0
Applied rewrites68.4%
if 7.40000000000000009e146 < b Initial program 99.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites56.2%
Taylor expanded in a around 0
Applied rewrites65.7%
Applied rewrites96.6%
Final simplification69.3%
(FPCore (a b angle)
:precision binary64
(if (<= b 3.8e-69)
(* a a)
(if (<= b 7.4e+146)
(fma
(* (* (* (* (PI) (PI)) 3.08641975308642e-5) b) b)
(* angle angle)
(* a a))
(* (pow (* (* b (PI)) angle) 2.0) 3.08641975308642e-5))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.8 \cdot 10^{-69}:\\
\;\;\;\;a \cdot a\\
\mathbf{elif}\;b \leq 7.4 \cdot 10^{+146}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(\left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right) \cdot b, 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 < 3.7999999999999998e-69Initial program 84.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6465.7
Applied rewrites65.7%
if 3.7999999999999998e-69 < b < 7.40000000000000009e146Initial program 75.1%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites43.4%
Taylor expanded in a around 0
Applied rewrites66.5%
if 7.40000000000000009e146 < b Initial program 99.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites56.2%
Taylor expanded in a around 0
Applied rewrites65.7%
Applied rewrites96.6%
Final simplification69.6%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (PI) (PI))))
(if (<= b 3.8e-69)
(* a a)
(if (<= b 7.4e+146)
(fma (* (* (* t_0 3.08641975308642e-5) b) b) (* angle angle) (* a a))
(* (* 3.08641975308642e-5 (* (* (* angle angle) b) b)) t_0)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\\
\mathbf{if}\;b \leq 3.8 \cdot 10^{-69}:\\
\;\;\;\;a \cdot a\\
\mathbf{elif}\;b \leq 7.4 \cdot 10^{+146}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(t\_0 \cdot 3.08641975308642 \cdot 10^{-5}\right) \cdot b\right) \cdot b, angle \cdot angle, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\left(3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(angle \cdot angle\right) \cdot b\right) \cdot b\right)\right) \cdot t\_0\\
\end{array}
\end{array}
if b < 3.7999999999999998e-69Initial program 84.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6465.7
Applied rewrites65.7%
if 3.7999999999999998e-69 < b < 7.40000000000000009e146Initial program 75.1%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites43.4%
Taylor expanded in a around 0
Applied rewrites66.5%
if 7.40000000000000009e146 < b Initial program 99.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites56.2%
Taylor expanded in a around 0
Applied rewrites65.7%
Taylor expanded in a around 0
Applied rewrites82.4%
Final simplification67.9%
(FPCore (a b angle) :precision binary64 (if (<= b 2.9e+111) (* a a) (* (* 3.08641975308642e-5 (* (* (* angle angle) b) b)) (* (PI) (PI)))))
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 2.9 \cdot 10^{+111}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\left(3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(angle \cdot angle\right) \cdot b\right) \cdot b\right)\right) \cdot \left(\mathsf{PI}\left(\right) \cdot \mathsf{PI}\left(\right)\right)\\
\end{array}
\end{array}
if b < 2.9e111Initial program 83.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6464.5
Applied rewrites64.5%
if 2.9e111 < b Initial program 93.3%
Taylor expanded in angle around 0
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites52.9%
Taylor expanded in a around 0
Applied rewrites63.1%
Taylor expanded in a around 0
Applied rewrites76.4%
Final simplification66.3%
(FPCore (a b angle) :precision binary64 (* a a))
double code(double a, double b, double angle) {
return a * a;
}
module fmin_fmax_functions
implicit none
private
public fmax
public fmin
interface fmax
module procedure fmax88
module procedure fmax44
module procedure fmax84
module procedure fmax48
end interface
interface fmin
module procedure fmin88
module procedure fmin44
module procedure fmin84
module procedure fmin48
end interface
contains
real(8) function fmax88(x, y) result (res)
real(8), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(x, max(x, y), y /= y), x /= x)
end function
real(4) function fmax44(x, y) result (res)
real(4), intent (in) :: x
real(4), intent (in) :: y
res = merge(y, merge(x, max(x, y), y /= y), x /= x)
end function
real(8) function fmax84(x, y) result(res)
real(8), intent (in) :: x
real(4), intent (in) :: y
res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
end function
real(8) function fmax48(x, y) result(res)
real(4), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
end function
real(8) function fmin88(x, y) result (res)
real(8), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(x, min(x, y), y /= y), x /= x)
end function
real(4) function fmin44(x, y) result (res)
real(4), intent (in) :: x
real(4), intent (in) :: y
res = merge(y, merge(x, min(x, y), y /= y), x /= x)
end function
real(8) function fmin84(x, y) result(res)
real(8), intent (in) :: x
real(4), intent (in) :: y
res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
end function
real(8) function fmin48(x, y) result(res)
real(4), intent (in) :: x
real(8), intent (in) :: y
res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
end function
end module
real(8) function code(a, b, angle)
use fmin_fmax_functions
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 84.8%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6457.9
Applied rewrites57.9%
Final simplification57.9%
herbie shell --seed 2024363
(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)))