
(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 (+ (* a a) (pow (* b (sin (/ (* angle (PI)) 180.0))) 2.0)))
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(\frac{angle \cdot \mathsf{PI}\left(\right)}{180}\right)\right)}^{2}
\end{array}
Initial program 80.1%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6480.2
Applied rewrites80.2%
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
*-commutativeN/A
lower-/.f64N/A
lower-*.f64N/A
lift-PI.f6480.3
Applied rewrites80.3%
(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 80.1%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6480.2
Applied rewrites80.2%
(FPCore (a b angle) :precision binary64 (+ (* a a) (pow (* b (sin (* angle (/ (PI) 180.0)))) 2.0)))
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(angle \cdot \frac{\mathsf{PI}\left(\right)}{180}\right)\right)}^{2}
\end{array}
Initial program 80.1%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6480.2
Applied rewrites80.2%
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
associate-*r/N/A
*-commutativeN/A
lower-/.f64N/A
lower-*.f64N/A
lift-PI.f6480.3
Applied rewrites80.3%
lift-/.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
associate-/l*N/A
lower-*.f64N/A
lower-/.f64N/A
lift-PI.f6480.2
Applied rewrites80.2%
(FPCore (a b angle) :precision binary64 (+ (* a a) (pow (* b (sin (* (PI) (* 0.005555555555555556 angle)))) 2.0)))
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(\mathsf{PI}\left(\right) \cdot \left(0.005555555555555556 \cdot angle\right)\right)\right)}^{2}
\end{array}
Initial program 80.1%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6480.2
Applied rewrites80.2%
Taylor expanded in angle around 0
lower-*.f6480.2
Applied rewrites80.2%
(FPCore (a b angle)
:precision binary64
(if (<= angle 0.005)
(fma
(* (* (* b (PI)) angle) 0.005555555555555556)
(* (* (* angle b) (PI)) 0.005555555555555556)
(* a a))
(fma
(- 0.5 (* (cos (* (* (/ angle 180.0) (PI)) 2.0)) 0.5))
(* b b)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;angle \leq 0.005:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.005555555555555556, \left(\left(angle \cdot b\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 0.005555555555555556, a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(0.5 - \cos \left(\left(\frac{angle}{180} \cdot \mathsf{PI}\left(\right)\right) \cdot 2\right) \cdot 0.5, b \cdot b, a \cdot a\right)\\
\end{array}
\end{array}
if angle < 0.0050000000000000001Initial program 87.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6487.9
Applied rewrites87.9%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6485.1
Applied rewrites85.1%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6485.1
Applied rewrites85.1%
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6485.2
Applied rewrites85.2%
if 0.0050000000000000001 < angle Initial program 51.8%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6451.4
Applied rewrites51.4%
lift-+.f64N/A
lift-pow.f64N/A
lift-*.f64N/A
lift-sin.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
+-commutativeN/A
*-commutativeN/A
unpow-prod-downN/A
Applied rewrites51.4%
lift-pow.f64N/A
lift-sin.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
unpow2N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
sqr-sin-a-revN/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
Applied rewrites51.4%
Final simplification78.0%
(FPCore (a b angle)
:precision binary64
(if (<= b 3.8e-121)
(*
(fma (sin (fma 0.011111111111111112 (* angle (PI)) (* 0.5 (PI)))) 0.5 0.5)
(* a a))
(fma
(* (* (* b (PI)) angle) 0.005555555555555556)
(* (* (* angle b) (PI)) 0.005555555555555556)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.8 \cdot 10^{-121}:\\
\;\;\;\;\mathsf{fma}\left(\sin \left(\mathsf{fma}\left(0.011111111111111112, angle \cdot \mathsf{PI}\left(\right), 0.5 \cdot \mathsf{PI}\left(\right)\right)\right), 0.5, 0.5\right) \cdot \left(a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.005555555555555556, \left(\left(angle \cdot b\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 0.005555555555555556, a \cdot a\right)\\
\end{array}
\end{array}
if b < 3.8000000000000001e-121Initial program 77.4%
lift-+.f64N/A
lift-pow.f64N/A
lift-*.f64N/A
lift-cos.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
*-commutativeN/A
unpow-prod-downN/A
lift-pow.f64N/A
Applied rewrites77.4%
lift-pow.f64N/A
lift-cos.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
unpow2N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
sqr-cos-aN/A
lower-+.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6477.4
Applied rewrites77.4%
lift-cos.f64N/A
sin-+PI/2-revN/A
lower-sin.f64N/A
lift-*.f64N/A
*-commutativeN/A
lower-fma.f64N/A
lower-/.f64N/A
lift-PI.f6477.1
Applied rewrites77.1%
Taylor expanded in a around inf
Applied rewrites58.7%
if 3.8000000000000001e-121 < b Initial program 84.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6484.5
Applied rewrites84.5%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6480.9
Applied rewrites80.9%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6480.9
Applied rewrites80.9%
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6481.0
Applied rewrites81.0%
Final simplification67.5%
(FPCore (a b angle)
:precision binary64
(if (<= b 3.8e-121)
(* (fma (cos (* 0.011111111111111112 (* angle (PI)))) 0.5 0.5) (* a a))
(fma
(* (* (* b (PI)) angle) 0.005555555555555556)
(* (* (* angle b) (PI)) 0.005555555555555556)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 3.8 \cdot 10^{-121}:\\
\;\;\;\;\mathsf{fma}\left(\cos \left(0.011111111111111112 \cdot \left(angle \cdot \mathsf{PI}\left(\right)\right)\right), 0.5, 0.5\right) \cdot \left(a \cdot a\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.005555555555555556, \left(\left(angle \cdot b\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 0.005555555555555556, a \cdot a\right)\\
\end{array}
\end{array}
if b < 3.8000000000000001e-121Initial program 77.4%
lift-+.f64N/A
lift-pow.f64N/A
lift-*.f64N/A
lift-cos.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
*-commutativeN/A
unpow-prod-downN/A
lift-pow.f64N/A
Applied rewrites77.4%
lift-pow.f64N/A
lift-cos.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
unpow2N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-/.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
sqr-cos-aN/A
lower-+.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-*.f6477.4
Applied rewrites77.4%
Taylor expanded in a around inf
Applied rewrites58.9%
if 3.8000000000000001e-121 < b Initial program 84.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6484.5
Applied rewrites84.5%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6480.9
Applied rewrites80.9%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6480.9
Applied rewrites80.9%
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6481.0
Applied rewrites81.0%
Final simplification67.6%
(FPCore (a b angle)
:precision binary64
(if (<= b 1.05e-113)
(* a a)
(fma
(* (* (* b (PI)) angle) 0.005555555555555556)
(* (* (* angle b) (PI)) 0.005555555555555556)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.05 \cdot 10^{-113}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.005555555555555556, \left(\left(angle \cdot b\right) \cdot \mathsf{PI}\left(\right)\right) \cdot 0.005555555555555556, a \cdot a\right)\\
\end{array}
\end{array}
if b < 1.05e-113Initial program 76.9%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.1
Applied rewrites59.1%
if 1.05e-113 < b Initial program 85.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6485.5
Applied rewrites85.5%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.0
Applied rewrites82.0%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6482.0
Applied rewrites82.1%
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.1
Applied rewrites82.1%
Final simplification67.8%
(FPCore (a b angle)
:precision binary64
(if (<= b 1.05e-113)
(* a a)
(fma
(* (* (* b (PI)) angle) 0.005555555555555556)
(* (* b (* angle (PI))) 0.005555555555555556)
(* a a))))\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.05 \cdot 10^{-113}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(b \cdot \mathsf{PI}\left(\right)\right) \cdot angle\right) \cdot 0.005555555555555556, \left(b \cdot \left(angle \cdot \mathsf{PI}\left(\right)\right)\right) \cdot 0.005555555555555556, a \cdot a\right)\\
\end{array}
\end{array}
if b < 1.05e-113Initial program 76.9%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.1
Applied rewrites59.1%
if 1.05e-113 < b Initial program 85.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6485.5
Applied rewrites85.5%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.0
Applied rewrites82.0%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6482.0
Applied rewrites82.1%
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f64N/A
lift-PI.f6482.1
Applied rewrites82.1%
Final simplification67.8%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* b (PI))))
(if (<= b 1.05e-113)
(* a a)
(fma
(* (* t_0 angle) 0.005555555555555556)
(* t_0 (* 0.005555555555555556 angle))
(* a a)))))\begin{array}{l}
\\
\begin{array}{l}
t_0 := b \cdot \mathsf{PI}\left(\right)\\
\mathbf{if}\;b \leq 1.05 \cdot 10^{-113}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(t\_0 \cdot angle\right) \cdot 0.005555555555555556, t\_0 \cdot \left(0.005555555555555556 \cdot angle\right), a \cdot a\right)\\
\end{array}
\end{array}
if b < 1.05e-113Initial program 76.9%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.1
Applied rewrites59.1%
if 1.05e-113 < b Initial program 85.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6485.5
Applied rewrites85.5%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.0
Applied rewrites82.0%
lift-+.f64N/A
+-commutativeN/A
lift-pow.f64N/A
unpow2N/A
lower-fma.f6482.0
Applied rewrites82.1%
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
associate-*l*N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lower-*.f6482.1
Applied rewrites82.1%
Final simplification67.8%
(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 80.1%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6452.8
Applied rewrites52.8%
herbie shell --seed 2025051
(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)))