
(FPCore (x y z t a) :precision binary64 (+ x (* y (/ (- z t) (- a t)))))
double code(double x, double y, double z, double t, double a) {
return x + (y * ((z - t) / (a - t)));
}
real(8) function code(x, y, z, t, a)
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) / (a - t)))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + (y * ((z - t) / (a - t)));
}
def code(x, y, z, t, a): return x + (y * ((z - t) / (a - t)))
function code(x, y, z, t, a) return Float64(x + Float64(y * Float64(Float64(z - t) / Float64(a - t)))) end
function tmp = code(x, y, z, t, a) tmp = x + (y * ((z - t) / (a - t))); end
code[x_, y_, z_, t_, a_] := N[(x + N[(y * N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \frac{z - t}{a - t}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 11 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t a) :precision binary64 (+ x (* y (/ (- z t) (- a t)))))
double code(double x, double y, double z, double t, double a) {
return x + (y * ((z - t) / (a - t)));
}
real(8) function code(x, y, z, t, a)
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) / (a - t)))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + (y * ((z - t) / (a - t)));
}
def code(x, y, z, t, a): return x + (y * ((z - t) / (a - t)))
function code(x, y, z, t, a) return Float64(x + Float64(y * Float64(Float64(z - t) / Float64(a - t)))) end
function tmp = code(x, y, z, t, a) tmp = x + (y * ((z - t) / (a - t))); end
code[x_, y_, z_, t_, a_] := N[(x + N[(y * N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \frac{z - t}{a - t}
\end{array}
(FPCore (x y z t a) :precision binary64 (+ (/ y (/ (- t a) (- t z))) x))
double code(double x, double y, double z, double t, double a) {
return (y / ((t - a) / (t - z))) + x;
}
real(8) function code(x, y, z, t, a)
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 = (y / ((t - a) / (t - z))) + x
end function
public static double code(double x, double y, double z, double t, double a) {
return (y / ((t - a) / (t - z))) + x;
}
def code(x, y, z, t, a): return (y / ((t - a) / (t - z))) + x
function code(x, y, z, t, a) return Float64(Float64(y / Float64(Float64(t - a) / Float64(t - z))) + x) end
function tmp = code(x, y, z, t, a) tmp = (y / ((t - a) / (t - z))) + x; end
code[x_, y_, z_, t_, a_] := N[(N[(y / N[(N[(t - a), $MachinePrecision] / N[(t - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\frac{y}{\frac{t - a}{t - z}} + x
\end{array}
Initial program 99.1%
lift-*.f64N/A
lift-/.f64N/A
clear-numN/A
un-div-invN/A
lower-/.f64N/A
frac-2negN/A
lower-/.f64N/A
neg-sub0N/A
lift--.f64N/A
sub-negN/A
+-commutativeN/A
associate--r+N/A
neg-sub0N/A
remove-double-negN/A
lower--.f64N/A
neg-sub0N/A
lift--.f64N/A
sub-negN/A
+-commutativeN/A
associate--r+N/A
neg-sub0N/A
remove-double-negN/A
lower--.f6499.8
Applied rewrites99.8%
Final simplification99.8%
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (/ (- z t) (- a t))))
(if (<= t_1 -2e+219)
(* (/ y (- a t)) z)
(if (<= t_1 1e-34)
(fma (/ (- z t) a) y x)
(if (<= t_1 2e+93) (+ y x) (fma (- t z) (/ y t) x))))))
double code(double x, double y, double z, double t, double a) {
double t_1 = (z - t) / (a - t);
double tmp;
if (t_1 <= -2e+219) {
tmp = (y / (a - t)) * z;
} else if (t_1 <= 1e-34) {
tmp = fma(((z - t) / a), y, x);
} else if (t_1 <= 2e+93) {
tmp = y + x;
} else {
tmp = fma((t - z), (y / t), x);
}
return tmp;
}
function code(x, y, z, t, a) t_1 = Float64(Float64(z - t) / Float64(a - t)) tmp = 0.0 if (t_1 <= -2e+219) tmp = Float64(Float64(y / Float64(a - t)) * z); elseif (t_1 <= 1e-34) tmp = fma(Float64(Float64(z - t) / a), y, x); elseif (t_1 <= 2e+93) tmp = Float64(y + x); else tmp = fma(Float64(t - z), Float64(y / t), x); end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -2e+219], N[(N[(y / N[(a - t), $MachinePrecision]), $MachinePrecision] * z), $MachinePrecision], If[LessEqual[t$95$1, 1e-34], N[(N[(N[(z - t), $MachinePrecision] / a), $MachinePrecision] * y + x), $MachinePrecision], If[LessEqual[t$95$1, 2e+93], N[(y + x), $MachinePrecision], N[(N[(t - z), $MachinePrecision] * N[(y / t), $MachinePrecision] + x), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \frac{z - t}{a - t}\\
\mathbf{if}\;t\_1 \leq -2 \cdot 10^{+219}:\\
\;\;\;\;\frac{y}{a - t} \cdot z\\
\mathbf{elif}\;t\_1 \leq 10^{-34}:\\
\;\;\;\;\mathsf{fma}\left(\frac{z - t}{a}, y, x\right)\\
\mathbf{elif}\;t\_1 \leq 2 \cdot 10^{+93}:\\
\;\;\;\;y + x\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(t - z, \frac{y}{t}, x\right)\\
\end{array}
\end{array}
if (/.f64 (-.f64 z t) (-.f64 a t)) < -1.99999999999999993e219Initial program 85.5%
Taylor expanded in z around inf
associate-/l*N/A
*-commutativeN/A
lower-*.f64N/A
lower-/.f64N/A
lower--.f6473.8
Applied rewrites73.8%
Applied rewrites84.5%
if -1.99999999999999993e219 < (/.f64 (-.f64 z t) (-.f64 a t)) < 9.99999999999999928e-35Initial program 99.4%
Taylor expanded in a around inf
+-commutativeN/A
associate-/l*N/A
*-commutativeN/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f6489.0
Applied rewrites89.0%
if 9.99999999999999928e-35 < (/.f64 (-.f64 z t) (-.f64 a t)) < 2.00000000000000009e93Initial program 99.9%
Taylor expanded in t around inf
lower-+.f6487.7
Applied rewrites87.7%
if 2.00000000000000009e93 < (/.f64 (-.f64 z t) (-.f64 a t)) Initial program 93.7%
Taylor expanded in a around 0
+-commutativeN/A
mul-1-negN/A
*-commutativeN/A
associate-/l*N/A
distribute-lft-neg-inN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
sub-negN/A
+-commutativeN/A
distribute-neg-inN/A
unsub-negN/A
remove-double-negN/A
lower--.f64N/A
lower-/.f6463.5
Applied rewrites63.5%
Final simplification85.7%
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (+ x (* y (/ (- z t) (- a t))))))
(if (< y -8.508084860551241e-17)
t_1
(if (< y 2.894426862792089e-49)
(+ x (* (* y (- z t)) (/ 1.0 (- a t))))
t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = x + (y * ((z - t) / (a - t)));
double tmp;
if (y < -8.508084860551241e-17) {
tmp = t_1;
} else if (y < 2.894426862792089e-49) {
tmp = x + ((y * (z - t)) * (1.0 / (a - t)));
} else {
tmp = t_1;
}
return tmp;
}
real(8) function code(x, y, z, t, a)
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) :: t_1
real(8) :: tmp
t_1 = x + (y * ((z - t) / (a - t)))
if (y < (-8.508084860551241d-17)) then
tmp = t_1
else if (y < 2.894426862792089d-49) then
tmp = x + ((y * (z - t)) * (1.0d0 / (a - t)))
else
tmp = t_1
end if
code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
double t_1 = x + (y * ((z - t) / (a - t)));
double tmp;
if (y < -8.508084860551241e-17) {
tmp = t_1;
} else if (y < 2.894426862792089e-49) {
tmp = x + ((y * (z - t)) * (1.0 / (a - t)));
} else {
tmp = t_1;
}
return tmp;
}
def code(x, y, z, t, a): t_1 = x + (y * ((z - t) / (a - t))) tmp = 0 if y < -8.508084860551241e-17: tmp = t_1 elif y < 2.894426862792089e-49: tmp = x + ((y * (z - t)) * (1.0 / (a - t))) else: tmp = t_1 return tmp
function code(x, y, z, t, a) t_1 = Float64(x + Float64(y * Float64(Float64(z - t) / Float64(a - t)))) tmp = 0.0 if (y < -8.508084860551241e-17) tmp = t_1; elseif (y < 2.894426862792089e-49) tmp = Float64(x + Float64(Float64(y * Float64(z - t)) * Float64(1.0 / Float64(a - t)))); else tmp = t_1; end return tmp end
function tmp_2 = code(x, y, z, t, a) t_1 = x + (y * ((z - t) / (a - t))); tmp = 0.0; if (y < -8.508084860551241e-17) tmp = t_1; elseif (y < 2.894426862792089e-49) tmp = x + ((y * (z - t)) * (1.0 / (a - t))); else tmp = t_1; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(x + N[(y * N[(N[(z - t), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[y, -8.508084860551241e-17], t$95$1, If[Less[y, 2.894426862792089e-49], N[(x + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] * N[(1.0 / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := x + y \cdot \frac{z - t}{a - t}\\
\mathbf{if}\;y < -8.508084860551241 \cdot 10^{-17}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;y < 2.894426862792089 \cdot 10^{-49}:\\
\;\;\;\;x + \left(y \cdot \left(z - t\right)\right) \cdot \frac{1}{a - t}\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
herbie shell --seed 2024230
(FPCore (x y z t a)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisLine from plot-0.2.3.4, B"
:precision binary64
:alt
(! :herbie-platform default (if (< y -8508084860551241/100000000000000000000000000000000) (+ x (* y (/ (- z t) (- a t)))) (if (< y 2894426862792089/10000000000000000000000000000000000000000000000000000000000000000) (+ x (* (* y (- z t)) (/ 1 (- a t)))) (+ x (* y (/ (- z t) (- a t)))))))
(+ x (* y (/ (- z t) (- a t)))))