
(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))))
double code(double a, double b, double angle) {
double t_0 = ((double) M_PI) * (angle / 180.0);
return pow((a * cos(t_0)), 2.0) + pow((b * sin(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = Math.PI * (angle / 180.0);
return Math.pow((a * Math.cos(t_0)), 2.0) + Math.pow((b * Math.sin(t_0)), 2.0);
}
def code(a, b, angle): t_0 = math.pi * (angle / 180.0) return math.pow((a * math.cos(t_0)), 2.0) + math.pow((b * math.sin(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(pi * Float64(angle / 180.0)) return Float64((Float64(a * cos(t_0)) ^ 2.0) + (Float64(b * sin(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = pi * (angle / 180.0); tmp = ((a * cos(t_0)) ^ 2.0) + ((b * sin(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Power[N[(a * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \pi \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 6 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))))
double code(double a, double b, double angle) {
double t_0 = ((double) M_PI) * (angle / 180.0);
return pow((a * cos(t_0)), 2.0) + pow((b * sin(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
double t_0 = Math.PI * (angle / 180.0);
return Math.pow((a * Math.cos(t_0)), 2.0) + Math.pow((b * Math.sin(t_0)), 2.0);
}
def code(a, b, angle): t_0 = math.pi * (angle / 180.0) return math.pow((a * math.cos(t_0)), 2.0) + math.pow((b * math.sin(t_0)), 2.0)
function code(a, b, angle) t_0 = Float64(pi * Float64(angle / 180.0)) return Float64((Float64(a * cos(t_0)) ^ 2.0) + (Float64(b * sin(t_0)) ^ 2.0)) end
function tmp = code(a, b, angle) t_0 = pi * (angle / 180.0); tmp = ((a * cos(t_0)) ^ 2.0) + ((b * sin(t_0)) ^ 2.0); end
code[a_, b_, angle_] := Block[{t$95$0 = N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Power[N[(a * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \pi \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 (* PI (/ angle 180.0)))) 2.0)))
double code(double a, double b, double angle) {
return (a * a) + pow((b * sin((((double) M_PI) * (angle / 180.0)))), 2.0);
}
public static double code(double a, double b, double angle) {
return (a * a) + Math.pow((b * Math.sin((Math.PI * (angle / 180.0)))), 2.0);
}
def code(a, b, angle): return (a * a) + math.pow((b * math.sin((math.pi * (angle / 180.0)))), 2.0)
function code(a, b, angle) return Float64(Float64(a * a) + (Float64(b * sin(Float64(pi * Float64(angle / 180.0)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (a * a) + ((b * sin((pi * (angle / 180.0)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[(a * a), $MachinePrecision] + N[Power[N[(b * N[Sin[N[(Pi * N[(angle / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(\pi \cdot \frac{angle}{180}\right)\right)}^{2}
\end{array}
Initial program 78.0%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6478.1
Applied rewrites78.1%
(FPCore (a b angle) :precision binary64 (+ (* a a) (pow (* b (sin (* PI (* 0.005555555555555556 angle)))) 2.0)))
double code(double a, double b, double angle) {
return (a * a) + pow((b * sin((((double) M_PI) * (0.005555555555555556 * angle)))), 2.0);
}
public static double code(double a, double b, double angle) {
return (a * a) + Math.pow((b * Math.sin((Math.PI * (0.005555555555555556 * angle)))), 2.0);
}
def code(a, b, angle): return (a * a) + math.pow((b * math.sin((math.pi * (0.005555555555555556 * angle)))), 2.0)
function code(a, b, angle) return Float64(Float64(a * a) + (Float64(b * sin(Float64(pi * Float64(0.005555555555555556 * angle)))) ^ 2.0)) end
function tmp = code(a, b, angle) tmp = (a * a) + ((b * sin((pi * (0.005555555555555556 * angle)))) ^ 2.0); end
code[a_, b_, angle_] := N[(N[(a * a), $MachinePrecision] + N[Power[N[(b * N[Sin[N[(Pi * N[(0.005555555555555556 * angle), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
a \cdot a + {\left(b \cdot \sin \left(\pi \cdot \left(0.005555555555555556 \cdot angle\right)\right)\right)}^{2}
\end{array}
Initial program 78.0%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6478.1
Applied rewrites78.1%
Taylor expanded in angle around 0
lower-*.f6478.1
Applied rewrites78.1%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (* b PI) angle)))
(if (<= b 5.8e+105)
(+
(* a a)
(pow
(/
1.0
(/
(fma
(/ (* (* angle angle) PI) b)
0.000925925925925926
(/ 180.0 (* b PI)))
angle))
2.0))
(+ (* a a) (* t_0 (* t_0 3.08641975308642e-5))))))
double code(double a, double b, double angle) {
double t_0 = (b * ((double) M_PI)) * angle;
double tmp;
if (b <= 5.8e+105) {
tmp = (a * a) + pow((1.0 / (fma((((angle * angle) * ((double) M_PI)) / b), 0.000925925925925926, (180.0 / (b * ((double) M_PI)))) / angle)), 2.0);
} else {
tmp = (a * a) + (t_0 * (t_0 * 3.08641975308642e-5));
}
return tmp;
}
function code(a, b, angle) t_0 = Float64(Float64(b * pi) * angle) tmp = 0.0 if (b <= 5.8e+105) tmp = Float64(Float64(a * a) + (Float64(1.0 / Float64(fma(Float64(Float64(Float64(angle * angle) * pi) / b), 0.000925925925925926, Float64(180.0 / Float64(b * pi))) / angle)) ^ 2.0)); else tmp = Float64(Float64(a * a) + Float64(t_0 * Float64(t_0 * 3.08641975308642e-5))); end return tmp end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(b * Pi), $MachinePrecision] * angle), $MachinePrecision]}, If[LessEqual[b, 5.8e+105], N[(N[(a * a), $MachinePrecision] + N[Power[N[(1.0 / N[(N[(N[(N[(N[(angle * angle), $MachinePrecision] * Pi), $MachinePrecision] / b), $MachinePrecision] * 0.000925925925925926 + N[(180.0 / N[(b * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / angle), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], N[(N[(a * a), $MachinePrecision] + N[(t$95$0 * N[(t$95$0 * 3.08641975308642e-5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(b \cdot \pi\right) \cdot angle\\
\mathbf{if}\;b \leq 5.8 \cdot 10^{+105}:\\
\;\;\;\;a \cdot a + {\left(\frac{1}{\frac{\mathsf{fma}\left(\frac{\left(angle \cdot angle\right) \cdot \pi}{b}, 0.000925925925925926, \frac{180}{b \cdot \pi}\right)}{angle}}\right)}^{2}\\
\mathbf{else}:\\
\;\;\;\;a \cdot a + t\_0 \cdot \left(t\_0 \cdot 3.08641975308642 \cdot 10^{-5}\right)\\
\end{array}
\end{array}
if b < 5.8000000000000002e105Initial program 76.7%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6476.9
Applied rewrites76.9%
lift-*.f64N/A
lift-sin.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-/.f64N/A
unpow1N/A
metadata-evalN/A
pow-negN/A
lower-/.f64N/A
lower-pow.f64N/A
Applied rewrites76.9%
Taylor expanded in angle around 0
lower-/.f64N/A
*-commutativeN/A
lower-fma.f64N/A
lower-/.f64N/A
lower-*.f64N/A
unpow2N/A
lower-*.f64N/A
lift-PI.f64N/A
associate-*r/N/A
metadata-evalN/A
lower-/.f64N/A
lower-*.f64N/A
lift-PI.f6467.7
Applied rewrites67.7%
if 5.8000000000000002e105 < b Initial program 84.2%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6484.2
Applied rewrites84.2%
Taylor expanded in angle around 0
*-commutativeN/A
lower-*.f64N/A
pow-prod-downN/A
pow-prod-downN/A
*-commutativeN/A
*-commutativeN/A
lower-pow.f64N/A
*-commutativeN/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.6
Applied rewrites82.6%
lift-pow.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-*.f64N/A
unpow2N/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f6482.6
lift-*.f64N/A
*-commutativeN/A
lower-*.f6482.6
Applied rewrites82.6%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lower-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f64N/A
lower-*.f6482.7
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6482.7
Applied rewrites82.7%
(FPCore (a b angle)
:precision binary64
(let* ((t_0 (* (* b PI) angle)))
(if (<= b 1.02e-139)
(* a a)
(+ (* a a) (* t_0 (* t_0 3.08641975308642e-5))))))
double code(double a, double b, double angle) {
double t_0 = (b * ((double) M_PI)) * angle;
double tmp;
if (b <= 1.02e-139) {
tmp = a * a;
} else {
tmp = (a * a) + (t_0 * (t_0 * 3.08641975308642e-5));
}
return tmp;
}
public static double code(double a, double b, double angle) {
double t_0 = (b * Math.PI) * angle;
double tmp;
if (b <= 1.02e-139) {
tmp = a * a;
} else {
tmp = (a * a) + (t_0 * (t_0 * 3.08641975308642e-5));
}
return tmp;
}
def code(a, b, angle): t_0 = (b * math.pi) * angle tmp = 0 if b <= 1.02e-139: tmp = a * a else: tmp = (a * a) + (t_0 * (t_0 * 3.08641975308642e-5)) return tmp
function code(a, b, angle) t_0 = Float64(Float64(b * pi) * angle) tmp = 0.0 if (b <= 1.02e-139) tmp = Float64(a * a); else tmp = Float64(Float64(a * a) + Float64(t_0 * Float64(t_0 * 3.08641975308642e-5))); end return tmp end
function tmp_2 = code(a, b, angle) t_0 = (b * pi) * angle; tmp = 0.0; if (b <= 1.02e-139) tmp = a * a; else tmp = (a * a) + (t_0 * (t_0 * 3.08641975308642e-5)); end tmp_2 = tmp; end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(b * Pi), $MachinePrecision] * angle), $MachinePrecision]}, If[LessEqual[b, 1.02e-139], N[(a * a), $MachinePrecision], N[(N[(a * a), $MachinePrecision] + N[(t$95$0 * N[(t$95$0 * 3.08641975308642e-5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \left(b \cdot \pi\right) \cdot angle\\
\mathbf{if}\;b \leq 1.02 \cdot 10^{-139}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;a \cdot a + t\_0 \cdot \left(t\_0 \cdot 3.08641975308642 \cdot 10^{-5}\right)\\
\end{array}
\end{array}
if b < 1.0200000000000001e-139Initial program 80.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.3
Applied rewrites59.3%
if 1.0200000000000001e-139 < b Initial program 73.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6473.7
Applied rewrites73.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-*.f64N/A
pow-prod-downN/A
pow-prod-downN/A
*-commutativeN/A
*-commutativeN/A
lower-pow.f64N/A
*-commutativeN/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6469.2
Applied rewrites69.2%
lift-pow.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-*.f64N/A
unpow2N/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f6469.2
lift-*.f64N/A
*-commutativeN/A
lower-*.f6469.2
Applied rewrites69.2%
lift-*.f64N/A
lift-*.f64N/A
associate-*l*N/A
lower-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f64N/A
lower-*.f6469.2
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6469.2
Applied rewrites69.2%
(FPCore (a b angle)
:precision binary64
(if (<= b 1.02e-139)
(* a a)
(+
(* a a)
(* (* (* b angle) (* PI (* (* b PI) angle))) 3.08641975308642e-5))))
double code(double a, double b, double angle) {
double tmp;
if (b <= 1.02e-139) {
tmp = a * a;
} else {
tmp = (a * a) + (((b * angle) * (((double) M_PI) * ((b * ((double) M_PI)) * angle))) * 3.08641975308642e-5);
}
return tmp;
}
public static double code(double a, double b, double angle) {
double tmp;
if (b <= 1.02e-139) {
tmp = a * a;
} else {
tmp = (a * a) + (((b * angle) * (Math.PI * ((b * Math.PI) * angle))) * 3.08641975308642e-5);
}
return tmp;
}
def code(a, b, angle): tmp = 0 if b <= 1.02e-139: tmp = a * a else: tmp = (a * a) + (((b * angle) * (math.pi * ((b * math.pi) * angle))) * 3.08641975308642e-5) return tmp
function code(a, b, angle) tmp = 0.0 if (b <= 1.02e-139) tmp = Float64(a * a); else tmp = Float64(Float64(a * a) + Float64(Float64(Float64(b * angle) * Float64(pi * Float64(Float64(b * pi) * angle))) * 3.08641975308642e-5)); end return tmp end
function tmp_2 = code(a, b, angle) tmp = 0.0; if (b <= 1.02e-139) tmp = a * a; else tmp = (a * a) + (((b * angle) * (pi * ((b * pi) * angle))) * 3.08641975308642e-5); end tmp_2 = tmp; end
code[a_, b_, angle_] := If[LessEqual[b, 1.02e-139], N[(a * a), $MachinePrecision], N[(N[(a * a), $MachinePrecision] + N[(N[(N[(b * angle), $MachinePrecision] * N[(Pi * N[(N[(b * Pi), $MachinePrecision] * angle), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * 3.08641975308642e-5), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq 1.02 \cdot 10^{-139}:\\
\;\;\;\;a \cdot a\\
\mathbf{else}:\\
\;\;\;\;a \cdot a + \left(\left(b \cdot angle\right) \cdot \left(\pi \cdot \left(\left(b \cdot \pi\right) \cdot angle\right)\right)\right) \cdot 3.08641975308642 \cdot 10^{-5}\\
\end{array}
\end{array}
if b < 1.0200000000000001e-139Initial program 80.3%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6459.3
Applied rewrites59.3%
if 1.0200000000000001e-139 < b Initial program 73.4%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6473.7
Applied rewrites73.7%
Taylor expanded in angle around 0
*-commutativeN/A
lower-*.f64N/A
pow-prod-downN/A
pow-prod-downN/A
*-commutativeN/A
*-commutativeN/A
lower-pow.f64N/A
*-commutativeN/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6469.2
Applied rewrites69.2%
lift-pow.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
lift-*.f64N/A
unpow2N/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f6469.2
lift-*.f64N/A
*-commutativeN/A
lower-*.f6469.2
Applied rewrites69.2%
lift-*.f64N/A
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
associate-*l*N/A
lower-*.f64N/A
lift-*.f64N/A
lower-*.f64N/A
lift-PI.f6469.2
lift-*.f64N/A
lift-PI.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-*r*N/A
*-commutativeN/A
lower-*.f64N/A
lower-*.f64N/A
lift-PI.f6469.2
Applied rewrites69.2%
(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 78.0%
Taylor expanded in angle around 0
unpow2N/A
lower-*.f6453.1
Applied rewrites53.1%
herbie shell --seed 2025072
(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)))