
(FPCore (a b angle x-scale y-scale)
:precision binary64
(let* ((t_0 (* (/ angle 180.0) (PI)))
(t_1 (sin t_0))
(t_2 (cos t_0))
(t_3
(/ (/ (+ (pow (* a t_2) 2.0) (pow (* b t_1) 2.0)) y-scale) y-scale))
(t_4
(/ (/ (+ (pow (* a t_1) 2.0) (pow (* b t_2) 2.0)) x-scale) x-scale))
(t_5 (* (* b a) (* b (- a))))
(t_6 (/ (* 4.0 t_5) (pow (* x-scale y-scale) 2.0))))
(/
(-
(sqrt
(*
(* (* 2.0 t_6) t_5)
(+
(+ t_4 t_3)
(sqrt
(+
(pow (- t_4 t_3) 2.0)
(pow
(/
(/ (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) t_1) t_2) x-scale)
y-scale)
2.0)))))))
t_6)))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \mathsf{PI}\left(\right)\\
t_1 := \sin t\_0\\
t_2 := \cos t\_0\\
t_3 := \frac{\frac{{\left(a \cdot t\_2\right)}^{2} + {\left(b \cdot t\_1\right)}^{2}}{y-scale}}{y-scale}\\
t_4 := \frac{\frac{{\left(a \cdot t\_1\right)}^{2} + {\left(b \cdot t\_2\right)}^{2}}{x-scale}}{x-scale}\\
t_5 := \left(b \cdot a\right) \cdot \left(b \cdot \left(-a\right)\right)\\
t_6 := \frac{4 \cdot t\_5}{{\left(x-scale \cdot y-scale\right)}^{2}}\\
\frac{-\sqrt{\left(\left(2 \cdot t\_6\right) \cdot t\_5\right) \cdot \left(\left(t\_4 + t\_3\right) + \sqrt{{\left(t\_4 - t\_3\right)}^{2} + {\left(\frac{\frac{\left(\left(2 \cdot \left({b}^{2} - {a}^{2}\right)\right) \cdot t\_1\right) \cdot t\_2}{x-scale}}{y-scale}\right)}^{2}}\right)}}{t\_6}
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (a b angle x-scale y-scale)
:precision binary64
(let* ((t_0 (* (/ angle 180.0) (PI)))
(t_1 (sin t_0))
(t_2 (cos t_0))
(t_3
(/ (/ (+ (pow (* a t_2) 2.0) (pow (* b t_1) 2.0)) y-scale) y-scale))
(t_4
(/ (/ (+ (pow (* a t_1) 2.0) (pow (* b t_2) 2.0)) x-scale) x-scale))
(t_5 (* (* b a) (* b (- a))))
(t_6 (/ (* 4.0 t_5) (pow (* x-scale y-scale) 2.0))))
(/
(-
(sqrt
(*
(* (* 2.0 t_6) t_5)
(+
(+ t_4 t_3)
(sqrt
(+
(pow (- t_4 t_3) 2.0)
(pow
(/
(/ (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) t_1) t_2) x-scale)
y-scale)
2.0)))))))
t_6)))\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \mathsf{PI}\left(\right)\\
t_1 := \sin t\_0\\
t_2 := \cos t\_0\\
t_3 := \frac{\frac{{\left(a \cdot t\_2\right)}^{2} + {\left(b \cdot t\_1\right)}^{2}}{y-scale}}{y-scale}\\
t_4 := \frac{\frac{{\left(a \cdot t\_1\right)}^{2} + {\left(b \cdot t\_2\right)}^{2}}{x-scale}}{x-scale}\\
t_5 := \left(b \cdot a\right) \cdot \left(b \cdot \left(-a\right)\right)\\
t_6 := \frac{4 \cdot t\_5}{{\left(x-scale \cdot y-scale\right)}^{2}}\\
\frac{-\sqrt{\left(\left(2 \cdot t\_6\right) \cdot t\_5\right) \cdot \left(\left(t\_4 + t\_3\right) + \sqrt{{\left(t\_4 - t\_3\right)}^{2} + {\left(\frac{\frac{\left(\left(2 \cdot \left({b}^{2} - {a}^{2}\right)\right) \cdot t\_1\right) \cdot t\_2}{x-scale}}{y-scale}\right)}^{2}}\right)}}{t\_6}
\end{array}
\end{array}
y-scale_m = (fabs.f64 y-scale)
x-scale_m = (fabs.f64 x-scale)
(FPCore (a b angle x-scale_m y-scale_m)
:precision binary64
(let* ((t_0 (* (PI) angle)))
(if (<= x-scale_m 6.5e+67)
(*
(*
(* y-scale_m 4.0)
(hypot (* (sin (* 0.005555555555555556 t_0)) a) (* 1.0 b)))
0.25)
(*
(* 0.25 (* (* x-scale_m (sqrt 2.0)) (sqrt 8.0)))
(hypot
(* (cos (* t_0 -0.005555555555555556)) a)
(* (sin (* t_0 0.005555555555555556)) b))))))\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot angle\\
\mathbf{if}\;x-scale\_m \leq 6.5 \cdot 10^{+67}:\\
\;\;\;\;\left(\left(y-scale\_m \cdot 4\right) \cdot \mathsf{hypot}\left(\sin \left(0.005555555555555556 \cdot t\_0\right) \cdot a, 1 \cdot b\right)\right) \cdot 0.25\\
\mathbf{else}:\\
\;\;\;\;\left(0.25 \cdot \left(\left(x-scale\_m \cdot \sqrt{2}\right) \cdot \sqrt{8}\right)\right) \cdot \mathsf{hypot}\left(\cos \left(t\_0 \cdot -0.005555555555555556\right) \cdot a, \sin \left(t\_0 \cdot 0.005555555555555556\right) \cdot b\right)\\
\end{array}
\end{array}
if x-scale < 6.4999999999999995e67Initial program 2.3%
Taylor expanded in x-scale around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
distribute-lft-outN/A
lower-*.f64N/A
Applied rewrites24.5%
Applied rewrites25.8%
Taylor expanded in angle around 0
Applied rewrites25.7%
if 6.4999999999999995e67 < x-scale Initial program 2.5%
Taylor expanded in x-scale around inf
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
Applied rewrites15.3%
Taylor expanded in b around inf
Applied rewrites26.8%
Taylor expanded in angle around inf
Applied rewrites71.9%
y-scale_m = (fabs.f64 y-scale)
x-scale_m = (fabs.f64 x-scale)
(FPCore (a b angle x-scale_m y-scale_m)
:precision binary64
(if (<= x-scale_m 1.7e+120)
(*
(*
(* y-scale_m 4.0)
(hypot (* (sin (* 0.005555555555555556 (* (PI) angle))) a) (* 1.0 b)))
0.25)
(* (* 0.25 a) (* (* x-scale_m (sqrt 2.0)) (sqrt 8.0)))))\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
\begin{array}{l}
\mathbf{if}\;x-scale\_m \leq 1.7 \cdot 10^{+120}:\\
\;\;\;\;\left(\left(y-scale\_m \cdot 4\right) \cdot \mathsf{hypot}\left(\sin \left(0.005555555555555556 \cdot \left(\mathsf{PI}\left(\right) \cdot angle\right)\right) \cdot a, 1 \cdot b\right)\right) \cdot 0.25\\
\mathbf{else}:\\
\;\;\;\;\left(0.25 \cdot a\right) \cdot \left(\left(x-scale\_m \cdot \sqrt{2}\right) \cdot \sqrt{8}\right)\\
\end{array}
\end{array}
if x-scale < 1.69999999999999999e120Initial program 2.3%
Taylor expanded in x-scale around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
distribute-lft-outN/A
lower-*.f64N/A
Applied rewrites23.8%
Applied rewrites25.1%
Taylor expanded in angle around 0
Applied rewrites25.0%
if 1.69999999999999999e120 < x-scale Initial program 2.5%
Taylor expanded in x-scale around inf
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
Applied rewrites17.2%
Taylor expanded in angle around 0
Applied rewrites28.7%
y-scale_m = (fabs.f64 y-scale)
x-scale_m = (fabs.f64 x-scale)
(FPCore (a b angle x-scale_m y-scale_m)
:precision binary64
(if (<= a 6.2e+112)
(* y-scale_m b)
(*
(* 0.25 (* (* (* (sqrt 8.0) y-scale_m) x-scale_m) a))
(/ (sqrt 2.0) y-scale_m))))y-scale_m = fabs(y_45_scale);
x-scale_m = fabs(x_45_scale);
double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
double tmp;
if (a <= 6.2e+112) {
tmp = y_45_scale_m * b;
} else {
tmp = (0.25 * (((sqrt(8.0) * y_45_scale_m) * x_45_scale_m) * a)) * (sqrt(2.0) / y_45_scale_m);
}
return tmp;
}
y-scale_m = private
x-scale_m = private
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, x_45scale_m, y_45scale_m)
use fmin_fmax_functions
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: angle
real(8), intent (in) :: x_45scale_m
real(8), intent (in) :: y_45scale_m
real(8) :: tmp
if (a <= 6.2d+112) then
tmp = y_45scale_m * b
else
tmp = (0.25d0 * (((sqrt(8.0d0) * y_45scale_m) * x_45scale_m) * a)) * (sqrt(2.0d0) / y_45scale_m)
end if
code = tmp
end function
y-scale_m = Math.abs(y_45_scale);
x-scale_m = Math.abs(x_45_scale);
public static double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
double tmp;
if (a <= 6.2e+112) {
tmp = y_45_scale_m * b;
} else {
tmp = (0.25 * (((Math.sqrt(8.0) * y_45_scale_m) * x_45_scale_m) * a)) * (Math.sqrt(2.0) / y_45_scale_m);
}
return tmp;
}
y-scale_m = math.fabs(y_45_scale) x-scale_m = math.fabs(x_45_scale) def code(a, b, angle, x_45_scale_m, y_45_scale_m): tmp = 0 if a <= 6.2e+112: tmp = y_45_scale_m * b else: tmp = (0.25 * (((math.sqrt(8.0) * y_45_scale_m) * x_45_scale_m) * a)) * (math.sqrt(2.0) / y_45_scale_m) return tmp
y-scale_m = abs(y_45_scale) x-scale_m = abs(x_45_scale) function code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = 0.0 if (a <= 6.2e+112) tmp = Float64(y_45_scale_m * b); else tmp = Float64(Float64(0.25 * Float64(Float64(Float64(sqrt(8.0) * y_45_scale_m) * x_45_scale_m) * a)) * Float64(sqrt(2.0) / y_45_scale_m)); end return tmp end
y-scale_m = abs(y_45_scale); x-scale_m = abs(x_45_scale); function tmp_2 = code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = 0.0; if (a <= 6.2e+112) tmp = y_45_scale_m * b; else tmp = (0.25 * (((sqrt(8.0) * y_45_scale_m) * x_45_scale_m) * a)) * (sqrt(2.0) / y_45_scale_m); end tmp_2 = tmp; end
y-scale_m = N[Abs[y$45$scale], $MachinePrecision] x-scale_m = N[Abs[x$45$scale], $MachinePrecision] code[a_, b_, angle_, x$45$scale$95$m_, y$45$scale$95$m_] := If[LessEqual[a, 6.2e+112], N[(y$45$scale$95$m * b), $MachinePrecision], N[(N[(0.25 * N[(N[(N[(N[Sqrt[8.0], $MachinePrecision] * y$45$scale$95$m), $MachinePrecision] * x$45$scale$95$m), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision] * N[(N[Sqrt[2.0], $MachinePrecision] / y$45$scale$95$m), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
\begin{array}{l}
\mathbf{if}\;a \leq 6.2 \cdot 10^{+112}:\\
\;\;\;\;y-scale\_m \cdot b\\
\mathbf{else}:\\
\;\;\;\;\left(0.25 \cdot \left(\left(\left(\sqrt{8} \cdot y-scale\_m\right) \cdot x-scale\_m\right) \cdot a\right)\right) \cdot \frac{\sqrt{2}}{y-scale\_m}\\
\end{array}
\end{array}
if a < 6.19999999999999965e112Initial program 2.4%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f6422.6
Applied rewrites22.6%
Applied rewrites22.7%
Applied rewrites22.7%
if 6.19999999999999965e112 < a Initial program 2.1%
Taylor expanded in a around inf
Applied rewrites14.4%
Taylor expanded in angle around 0
Applied rewrites26.7%
y-scale_m = (fabs.f64 y-scale) x-scale_m = (fabs.f64 x-scale) (FPCore (a b angle x-scale_m y-scale_m) :precision binary64 (if (<= x-scale_m 2.4e+67) (* y-scale_m b) (* (* 0.25 a) (* (* x-scale_m (sqrt 2.0)) (sqrt 8.0)))))
y-scale_m = fabs(y_45_scale);
x-scale_m = fabs(x_45_scale);
double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
double tmp;
if (x_45_scale_m <= 2.4e+67) {
tmp = y_45_scale_m * b;
} else {
tmp = (0.25 * a) * ((x_45_scale_m * sqrt(2.0)) * sqrt(8.0));
}
return tmp;
}
y-scale_m = private
x-scale_m = private
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, x_45scale_m, y_45scale_m)
use fmin_fmax_functions
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: angle
real(8), intent (in) :: x_45scale_m
real(8), intent (in) :: y_45scale_m
real(8) :: tmp
if (x_45scale_m <= 2.4d+67) then
tmp = y_45scale_m * b
else
tmp = (0.25d0 * a) * ((x_45scale_m * sqrt(2.0d0)) * sqrt(8.0d0))
end if
code = tmp
end function
y-scale_m = Math.abs(y_45_scale);
x-scale_m = Math.abs(x_45_scale);
public static double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
double tmp;
if (x_45_scale_m <= 2.4e+67) {
tmp = y_45_scale_m * b;
} else {
tmp = (0.25 * a) * ((x_45_scale_m * Math.sqrt(2.0)) * Math.sqrt(8.0));
}
return tmp;
}
y-scale_m = math.fabs(y_45_scale) x-scale_m = math.fabs(x_45_scale) def code(a, b, angle, x_45_scale_m, y_45_scale_m): tmp = 0 if x_45_scale_m <= 2.4e+67: tmp = y_45_scale_m * b else: tmp = (0.25 * a) * ((x_45_scale_m * math.sqrt(2.0)) * math.sqrt(8.0)) return tmp
y-scale_m = abs(y_45_scale) x-scale_m = abs(x_45_scale) function code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = 0.0 if (x_45_scale_m <= 2.4e+67) tmp = Float64(y_45_scale_m * b); else tmp = Float64(Float64(0.25 * a) * Float64(Float64(x_45_scale_m * sqrt(2.0)) * sqrt(8.0))); end return tmp end
y-scale_m = abs(y_45_scale); x-scale_m = abs(x_45_scale); function tmp_2 = code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = 0.0; if (x_45_scale_m <= 2.4e+67) tmp = y_45_scale_m * b; else tmp = (0.25 * a) * ((x_45_scale_m * sqrt(2.0)) * sqrt(8.0)); end tmp_2 = tmp; end
y-scale_m = N[Abs[y$45$scale], $MachinePrecision] x-scale_m = N[Abs[x$45$scale], $MachinePrecision] code[a_, b_, angle_, x$45$scale$95$m_, y$45$scale$95$m_] := If[LessEqual[x$45$scale$95$m, 2.4e+67], N[(y$45$scale$95$m * b), $MachinePrecision], N[(N[(0.25 * a), $MachinePrecision] * N[(N[(x$45$scale$95$m * N[Sqrt[2.0], $MachinePrecision]), $MachinePrecision] * N[Sqrt[8.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
\begin{array}{l}
\mathbf{if}\;x-scale\_m \leq 2.4 \cdot 10^{+67}:\\
\;\;\;\;y-scale\_m \cdot b\\
\mathbf{else}:\\
\;\;\;\;\left(0.25 \cdot a\right) \cdot \left(\left(x-scale\_m \cdot \sqrt{2}\right) \cdot \sqrt{8}\right)\\
\end{array}
\end{array}
if x-scale < 2.40000000000000002e67Initial program 2.3%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f6422.6
Applied rewrites22.6%
Applied rewrites22.7%
Applied rewrites22.7%
if 2.40000000000000002e67 < x-scale Initial program 2.5%
Taylor expanded in x-scale around inf
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f64N/A
Applied rewrites15.3%
Taylor expanded in angle around 0
Applied rewrites29.4%
y-scale_m = (fabs.f64 y-scale) x-scale_m = (fabs.f64 x-scale) (FPCore (a b angle x-scale_m y-scale_m) :precision binary64 (* (* (* y-scale_m 4.0) 0.25) b))
y-scale_m = fabs(y_45_scale);
x-scale_m = fabs(x_45_scale);
double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
return ((y_45_scale_m * 4.0) * 0.25) * b;
}
y-scale_m = private
x-scale_m = private
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, x_45scale_m, y_45scale_m)
use fmin_fmax_functions
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: angle
real(8), intent (in) :: x_45scale_m
real(8), intent (in) :: y_45scale_m
code = ((y_45scale_m * 4.0d0) * 0.25d0) * b
end function
y-scale_m = Math.abs(y_45_scale);
x-scale_m = Math.abs(x_45_scale);
public static double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
return ((y_45_scale_m * 4.0) * 0.25) * b;
}
y-scale_m = math.fabs(y_45_scale) x-scale_m = math.fabs(x_45_scale) def code(a, b, angle, x_45_scale_m, y_45_scale_m): return ((y_45_scale_m * 4.0) * 0.25) * b
y-scale_m = abs(y_45_scale) x-scale_m = abs(x_45_scale) function code(a, b, angle, x_45_scale_m, y_45_scale_m) return Float64(Float64(Float64(y_45_scale_m * 4.0) * 0.25) * b) end
y-scale_m = abs(y_45_scale); x-scale_m = abs(x_45_scale); function tmp = code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = ((y_45_scale_m * 4.0) * 0.25) * b; end
y-scale_m = N[Abs[y$45$scale], $MachinePrecision] x-scale_m = N[Abs[x$45$scale], $MachinePrecision] code[a_, b_, angle_, x$45$scale$95$m_, y$45$scale$95$m_] := N[(N[(N[(y$45$scale$95$m * 4.0), $MachinePrecision] * 0.25), $MachinePrecision] * b), $MachinePrecision]
\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
\left(\left(y-scale\_m \cdot 4\right) \cdot 0.25\right) \cdot b
\end{array}
Initial program 2.3%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f6420.3
Applied rewrites20.3%
Applied rewrites20.5%
y-scale_m = (fabs.f64 y-scale) x-scale_m = (fabs.f64 x-scale) (FPCore (a b angle x-scale_m y-scale_m) :precision binary64 (* y-scale_m b))
y-scale_m = fabs(y_45_scale);
x-scale_m = fabs(x_45_scale);
double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
return y_45_scale_m * b;
}
y-scale_m = private
x-scale_m = private
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, x_45scale_m, y_45scale_m)
use fmin_fmax_functions
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: angle
real(8), intent (in) :: x_45scale_m
real(8), intent (in) :: y_45scale_m
code = y_45scale_m * b
end function
y-scale_m = Math.abs(y_45_scale);
x-scale_m = Math.abs(x_45_scale);
public static double code(double a, double b, double angle, double x_45_scale_m, double y_45_scale_m) {
return y_45_scale_m * b;
}
y-scale_m = math.fabs(y_45_scale) x-scale_m = math.fabs(x_45_scale) def code(a, b, angle, x_45_scale_m, y_45_scale_m): return y_45_scale_m * b
y-scale_m = abs(y_45_scale) x-scale_m = abs(x_45_scale) function code(a, b, angle, x_45_scale_m, y_45_scale_m) return Float64(y_45_scale_m * b) end
y-scale_m = abs(y_45_scale); x-scale_m = abs(x_45_scale); function tmp = code(a, b, angle, x_45_scale_m, y_45_scale_m) tmp = y_45_scale_m * b; end
y-scale_m = N[Abs[y$45$scale], $MachinePrecision] x-scale_m = N[Abs[x$45$scale], $MachinePrecision] code[a_, b_, angle_, x$45$scale$95$m_, y$45$scale$95$m_] := N[(y$45$scale$95$m * b), $MachinePrecision]
\begin{array}{l}
y-scale_m = \left|y-scale\right|
\\
x-scale_m = \left|x-scale\right|
\\
y-scale\_m \cdot b
\end{array}
Initial program 2.3%
Taylor expanded in angle around 0
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
lower-sqrt.f64N/A
lower-sqrt.f6420.3
Applied rewrites20.3%
Applied rewrites20.5%
Applied rewrites20.1%
herbie shell --seed 2024347
(FPCore (a b angle x-scale y-scale)
:name "a from scale-rotated-ellipse"
:precision binary64
(/ (- (sqrt (* (* (* 2.0 (/ (* 4.0 (* (* b a) (* b (- a)))) (pow (* x-scale y-scale) 2.0))) (* (* b a) (* b (- a)))) (+ (+ (/ (/ (+ (pow (* a (sin (* (/ angle 180.0) (PI)))) 2.0) (pow (* b (cos (* (/ angle 180.0) (PI)))) 2.0)) x-scale) x-scale) (/ (/ (+ (pow (* a (cos (* (/ angle 180.0) (PI)))) 2.0) (pow (* b (sin (* (/ angle 180.0) (PI)))) 2.0)) y-scale) y-scale)) (sqrt (+ (pow (- (/ (/ (+ (pow (* a (sin (* (/ angle 180.0) (PI)))) 2.0) (pow (* b (cos (* (/ angle 180.0) (PI)))) 2.0)) x-scale) x-scale) (/ (/ (+ (pow (* a (cos (* (/ angle 180.0) (PI)))) 2.0) (pow (* b (sin (* (/ angle 180.0) (PI)))) 2.0)) y-scale) y-scale)) 2.0) (pow (/ (/ (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) (sin (* (/ angle 180.0) (PI)))) (cos (* (/ angle 180.0) (PI)))) x-scale) y-scale) 2.0))))))) (/ (* 4.0 (* (* b a) (* b (- a)))) (pow (* x-scale y-scale) 2.0))))