
(FPCore (x y z t a) :precision binary64 (+ x (/ (* y (- z t)) (- z a))))
double code(double x, double y, double z, double t, double a) {
return x + ((y * (z - t)) / (z - 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(x, y, z, t, a)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
code = x + ((y * (z - t)) / (z - a))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + ((y * (z - t)) / (z - a));
}
def code(x, y, z, t, a): return x + ((y * (z - t)) / (z - a))
function code(x, y, z, t, a) return Float64(x + Float64(Float64(y * Float64(z - t)) / Float64(z - a))) end
function tmp = code(x, y, z, t, a) tmp = x + ((y * (z - t)) / (z - a)); end
code[x_, y_, z_, t_, a_] := N[(x + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y \cdot \left(z - t\right)}{z - a}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t a) :precision binary64 (+ x (/ (* y (- z t)) (- z a))))
double code(double x, double y, double z, double t, double a) {
return x + ((y * (z - t)) / (z - 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(x, y, z, t, a)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
code = x + ((y * (z - t)) / (z - a))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + ((y * (z - t)) / (z - a));
}
def code(x, y, z, t, a): return x + ((y * (z - t)) / (z - a))
function code(x, y, z, t, a) return Float64(x + Float64(Float64(y * Float64(z - t)) / Float64(z - a))) end
function tmp = code(x, y, z, t, a) tmp = x + ((y * (z - t)) / (z - a)); end
code[x_, y_, z_, t_, a_] := N[(x + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y \cdot \left(z - t\right)}{z - a}
\end{array}
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (+ x (/ (* y (- z t)) (- z a)))))
(if (or (<= t_1 (- INFINITY)) (not (<= t_1 5e+305)))
(fma (/ (- z t) (- z a)) y x)
t_1)))
double code(double x, double y, double z, double t, double a) {
double t_1 = x + ((y * (z - t)) / (z - a));
double tmp;
if ((t_1 <= -((double) INFINITY)) || !(t_1 <= 5e+305)) {
tmp = fma(((z - t) / (z - a)), y, x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = Float64(x + Float64(Float64(y * Float64(z - t)) / Float64(z - a))) tmp = 0.0 if ((t_1 <= Float64(-Inf)) || !(t_1 <= 5e+305)) tmp = fma(Float64(Float64(z - t) / Float64(z - a)), y, x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Or[LessEqual[t$95$1, (-Infinity)], N[Not[LessEqual[t$95$1, 5e+305]], $MachinePrecision]], N[(N[(N[(z - t), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision], t$95$1]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := x + \frac{y \cdot \left(z - t\right)}{z - a}\\
\mathbf{if}\;t\_1 \leq -\infty \lor \neg \left(t\_1 \leq 5 \cdot 10^{+305}\right):\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{z - a}, y, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if (+.f64 x (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))) < -inf.0 or 5.00000000000000009e305 < (+.f64 x (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))) Initial program 48.7%
lift-+.f64N/A
lift--.f64N/A
lift-/.f64N/A
lift--.f64N/A
lift-*.f64N/A
+-commutativeN/A
associate-/l*N/A
sub-divN/A
*-commutativeN/A
lower-fma.f64N/A
sub-divN/A
lower-/.f64N/A
lift--.f64N/A
lift--.f6499.9
Applied rewrites99.9%
if -inf.0 < (+.f64 x (/.f64 (*.f64 y (-.f64 z t)) (-.f64 z a))) < 5.00000000000000009e305Initial program 99.8%
Final simplification99.8%
(FPCore (x y z t a) :precision binary64 (if (or (<= z -3.7e+20) (not (<= z 1.05e+30))) (fma y (/ z (- z a)) x) (fma t (/ y a) x)))
double code(double x, double y, double z, double t, double a) {
double tmp;
if ((z <= -3.7e+20) || !(z <= 1.05e+30)) {
tmp = fma(y, (z / (z - a)), x);
} else {
tmp = fma(t, (y / a), x);
}
return tmp;
}
function code(x, y, z, t, a) tmp = 0.0 if ((z <= -3.7e+20) || !(z <= 1.05e+30)) tmp = fma(y, Float64(z / Float64(z - a)), x); else tmp = fma(t, Float64(y / a), x); end return tmp end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[z, -3.7e+20], N[Not[LessEqual[z, 1.05e+30]], $MachinePrecision]], N[(y * N[(z / N[(z - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], N[(t * N[(y / a), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.7 \cdot 10^{+20} \lor \neg \left(z \leq 1.05 \cdot 10^{+30}\right):\\
\;\;\;\;\mathsf{fma}\left(y, \frac{z}{z - a}, x\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(t, \frac{y}{a}, x\right)\\
\end{array}
\end{array}
if z < -3.7e20 or 1.05e30 < z Initial program 74.8%
Taylor expanded in t around 0
+-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f64N/A
lift--.f6490.6
Applied rewrites90.6%
if -3.7e20 < z < 1.05e30Initial program 96.8%
Taylor expanded in z around 0
+-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f6478.5
Applied rewrites78.5%
Final simplification83.5%
(FPCore (x y z t a) :precision binary64 (if (or (<= z -4.2e+76) (not (<= z 6e+74))) (+ x y) (fma t (/ y a) x)))
double code(double x, double y, double z, double t, double a) {
double tmp;
if ((z <= -4.2e+76) || !(z <= 6e+74)) {
tmp = x + y;
} else {
tmp = fma(t, (y / a), x);
}
return tmp;
}
function code(x, y, z, t, a) tmp = 0.0 if ((z <= -4.2e+76) || !(z <= 6e+74)) tmp = Float64(x + y); else tmp = fma(t, Float64(y / a), x); end return tmp end
code[x_, y_, z_, t_, a_] := If[Or[LessEqual[z, -4.2e+76], N[Not[LessEqual[z, 6e+74]], $MachinePrecision]], N[(x + y), $MachinePrecision], N[(t * N[(y / a), $MachinePrecision] + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.2 \cdot 10^{+76} \lor \neg \left(z \leq 6 \cdot 10^{+74}\right):\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(t, \frac{y}{a}, x\right)\\
\end{array}
\end{array}
if z < -4.20000000000000013e76 or 6e74 < z Initial program 70.8%
Taylor expanded in z around inf
Applied rewrites86.7%
if -4.20000000000000013e76 < z < 6e74Initial program 96.5%
Taylor expanded in z around 0
+-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f6475.0
Applied rewrites75.0%
Final simplification79.0%
(FPCore (x y z t a) :precision binary64 (fma (/ (- z t) (- z a)) y x))
double code(double x, double y, double z, double t, double a) {
return fma(((z - t) / (z - a)), y, x);
}
function code(x, y, z, t, a) return fma(Float64(Float64(z - t) / Float64(z - a)), y, x) end
code[x_, y_, z_, t_, a_] := N[(N[(N[(z - t), $MachinePrecision] / N[(z - a), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(\frac{z - t}{z - a}, y, x\right)
\end{array}
Initial program 87.6%
lift-+.f64N/A
lift--.f64N/A
lift-/.f64N/A
lift--.f64N/A
lift-*.f64N/A
+-commutativeN/A
associate-/l*N/A
sub-divN/A
*-commutativeN/A
lower-fma.f64N/A
sub-divN/A
lower-/.f64N/A
lift--.f64N/A
lift--.f6495.1
Applied rewrites95.1%
(FPCore (x y z t a) :precision binary64 (if (<= a -2.2e+162) x (if (<= a 2.6e+96) (+ x y) x)))
double code(double x, double y, double z, double t, double a) {
double tmp;
if (a <= -2.2e+162) {
tmp = x;
} else if (a <= 2.6e+96) {
tmp = x + y;
} else {
tmp = x;
}
return tmp;
}
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(x, y, z, t, a)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
real(8) :: tmp
if (a <= (-2.2d+162)) then
tmp = x
else if (a <= 2.6d+96) then
tmp = x + y
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
double tmp;
if (a <= -2.2e+162) {
tmp = x;
} else if (a <= 2.6e+96) {
tmp = x + y;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t, a): tmp = 0 if a <= -2.2e+162: tmp = x elif a <= 2.6e+96: tmp = x + y else: tmp = x return tmp
function code(x, y, z, t, a) tmp = 0.0 if (a <= -2.2e+162) tmp = x; elseif (a <= 2.6e+96) tmp = Float64(x + y); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t, a) tmp = 0.0; if (a <= -2.2e+162) tmp = x; elseif (a <= 2.6e+96) tmp = x + y; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_] := If[LessEqual[a, -2.2e+162], x, If[LessEqual[a, 2.6e+96], N[(x + y), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;a \leq -2.2 \cdot 10^{+162}:\\
\;\;\;\;x\\
\mathbf{elif}\;a \leq 2.6 \cdot 10^{+96}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if a < -2.2000000000000002e162 or 2.6e96 < a Initial program 87.4%
Taylor expanded in x around inf
Applied rewrites67.4%
if -2.2000000000000002e162 < a < 2.6e96Initial program 87.7%
Taylor expanded in z around inf
Applied rewrites59.3%
(FPCore (x y z t a) :precision binary64 x)
double code(double x, double y, double z, double t, double a) {
return x;
}
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(x, y, z, t, a)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
code = x
end function
public static double code(double x, double y, double z, double t, double a) {
return x;
}
def code(x, y, z, t, a): return x
function code(x, y, z, t, a) return x end
function tmp = code(x, y, z, t, a) tmp = x; end
code[x_, y_, z_, t_, a_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 87.6%
Taylor expanded in x around inf
Applied rewrites47.2%
(FPCore (x y z t a) :precision binary64 (+ x (/ y (/ (- z a) (- z t)))))
double code(double x, double y, double z, double t, double a) {
return x + (y / ((z - a) / (z - t)));
}
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(x, y, z, t, a)
use fmin_fmax_functions
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
code = x + (y / ((z - a) / (z - t)))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + (y / ((z - a) / (z - t)));
}
def code(x, y, z, t, a): return x + (y / ((z - a) / (z - t)))
function code(x, y, z, t, a) return Float64(x + Float64(y / Float64(Float64(z - a) / Float64(z - t)))) end
function tmp = code(x, y, z, t, a) tmp = x + (y / ((z - a) / (z - t))); end
code[x_, y_, z_, t_, a_] := N[(x + N[(y / N[(N[(z - a), $MachinePrecision] / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y}{\frac{z - a}{z - t}}
\end{array}
herbie shell --seed 2025037
(FPCore (x y z t a)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, A"
:precision binary64
:alt
(! :herbie-platform default (+ x (/ y (/ (- z a) (- z t)))))
(+ x (/ (* y (- z t)) (- z a))))