
(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(Float64(y * 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[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y \cdot \left(z - t\right)}{a - t}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 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(Float64(y * 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[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y \cdot \left(z - t\right)}{a - t}
\end{array}
(FPCore (x y z t a) :precision binary64 (+ (/ y (/ (- a t) (- z t))) x))
double code(double x, double y, double z, double t, double a) {
return (y / ((a - t) / (z - t))) + 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 / ((a - t) / (z - t))) + x
end function
public static double code(double x, double y, double z, double t, double a) {
return (y / ((a - t) / (z - t))) + x;
}
def code(x, y, z, t, a): return (y / ((a - t) / (z - t))) + x
function code(x, y, z, t, a) return Float64(Float64(y / Float64(Float64(a - t) / Float64(z - t))) + x) end
function tmp = code(x, y, z, t, a) tmp = (y / ((a - t) / (z - t))) + x; end
code[x_, y_, z_, t_, a_] := N[(N[(y / N[(N[(a - t), $MachinePrecision] / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\frac{y}{\frac{a - t}{z - t}} + x
\end{array}
Initial program 86.8%
lift-/.f64N/A
lift-*.f64N/A
associate-/l*N/A
clear-numN/A
un-div-invN/A
lower-/.f64N/A
lower-/.f6498.2
Applied rewrites98.2%
Final simplification98.2%
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (/ (* (- z t) y) (- a t))))
(if (<= t_1 (- INFINITY))
(* (/ y (- a t)) (- z t))
(if (<= t_1 5e+209) (+ t_1 x) (fma (- 1.0 (/ z t)) y x)))))
double code(double x, double y, double z, double t, double a) {
double t_1 = ((z - t) * y) / (a - t);
double tmp;
if (t_1 <= -((double) INFINITY)) {
tmp = (y / (a - t)) * (z - t);
} else if (t_1 <= 5e+209) {
tmp = t_1 + x;
} else {
tmp = fma((1.0 - (z / t)), y, x);
}
return tmp;
}
function code(x, y, z, t, a) t_1 = Float64(Float64(Float64(z - t) * y) / Float64(a - t)) tmp = 0.0 if (t_1 <= Float64(-Inf)) tmp = Float64(Float64(y / Float64(a - t)) * Float64(z - t)); elseif (t_1 <= 5e+209) tmp = Float64(t_1 + x); else tmp = fma(Float64(1.0 - Float64(z / t)), y, x); end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(y / N[(a - t), $MachinePrecision]), $MachinePrecision] * N[(z - t), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 5e+209], N[(t$95$1 + x), $MachinePrecision], N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \frac{\left(z - t\right) \cdot y}{a - t}\\
\mathbf{if}\;t\_1 \leq -\infty:\\
\;\;\;\;\frac{y}{a - t} \cdot \left(z - t\right)\\
\mathbf{elif}\;t\_1 \leq 5 \cdot 10^{+209}:\\
\;\;\;\;t\_1 + x\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\end{array}
\end{array}
if (/.f64 (*.f64 y (-.f64 z t)) (-.f64 a t)) < -inf.0Initial program 41.1%
Taylor expanded in y around inf
distribute-lft-out--N/A
associate-/l*N/A
*-commutativeN/A
associate-*r/N/A
associate-/l*N/A
*-commutativeN/A
associate-/l*N/A
distribute-rgt-out--N/A
lower-*.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6481.0
Applied rewrites81.0%
if -inf.0 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 a t)) < 4.99999999999999964e209Initial program 99.3%
if 4.99999999999999964e209 < (/.f64 (*.f64 y (-.f64 z t)) (-.f64 a t)) Initial program 34.8%
Taylor expanded in a around 0
+-commutativeN/A
mul-1-negN/A
associate-/l*N/A
*-commutativeN/A
distribute-lft-neg-inN/A
lower-fma.f64N/A
neg-sub0N/A
div-subN/A
*-inversesN/A
associate-+l-N/A
neg-sub0N/A
mul-1-negN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f6485.9
Applied rewrites85.9%
Final simplification96.3%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma (- 1.0 (/ z t)) y x))) (if (<= t -1350.0) t_1 (if (<= t 2.1e-59) (+ (/ (* z y) (- a t)) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma((1.0 - (z / t)), y, x);
double tmp;
if (t <= -1350.0) {
tmp = t_1;
} else if (t <= 2.1e-59) {
tmp = ((z * y) / (a - t)) + x;
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(Float64(1.0 - Float64(z / t)), y, x) tmp = 0.0 if (t <= -1350.0) tmp = t_1; elseif (t <= 2.1e-59) tmp = Float64(Float64(Float64(z * y) / Float64(a - t)) + x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -1350.0], t$95$1, If[LessEqual[t, 2.1e-59], N[(N[(N[(z * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\mathbf{if}\;t \leq -1350:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 2.1 \cdot 10^{-59}:\\
\;\;\;\;\frac{z \cdot y}{a - t} + x\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -1350 or 2.09999999999999997e-59 < t Initial program 78.2%
Taylor expanded in a around 0
+-commutativeN/A
mul-1-negN/A
associate-/l*N/A
*-commutativeN/A
distribute-lft-neg-inN/A
lower-fma.f64N/A
neg-sub0N/A
div-subN/A
*-inversesN/A
associate-+l-N/A
neg-sub0N/A
mul-1-negN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f6489.5
Applied rewrites89.5%
if -1350 < t < 2.09999999999999997e-59Initial program 97.2%
Taylor expanded in t around 0
*-commutativeN/A
lower-*.f6493.5
Applied rewrites93.5%
Final simplification91.3%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma (- 1.0 (/ z t)) y x))) (if (<= t -6.8e-19) t_1 (if (<= t 2.1e-59) (+ (/ (* (- z t) y) a) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma((1.0 - (z / t)), y, x);
double tmp;
if (t <= -6.8e-19) {
tmp = t_1;
} else if (t <= 2.1e-59) {
tmp = (((z - t) * y) / a) + x;
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(Float64(1.0 - Float64(z / t)), y, x) tmp = 0.0 if (t <= -6.8e-19) tmp = t_1; elseif (t <= 2.1e-59) tmp = Float64(Float64(Float64(Float64(z - t) * y) / a) + x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -6.8e-19], t$95$1, If[LessEqual[t, 2.1e-59], N[(N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\mathbf{if}\;t \leq -6.8 \cdot 10^{-19}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 2.1 \cdot 10^{-59}:\\
\;\;\;\;\frac{\left(z - t\right) \cdot y}{a} + x\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -6.8000000000000004e-19 or 2.09999999999999997e-59 < t Initial program 79.3%
Taylor expanded in a around 0
+-commutativeN/A
mul-1-negN/A
associate-/l*N/A
*-commutativeN/A
distribute-lft-neg-inN/A
lower-fma.f64N/A
neg-sub0N/A
div-subN/A
*-inversesN/A
associate-+l-N/A
neg-sub0N/A
mul-1-negN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f6488.7
Applied rewrites88.7%
if -6.8000000000000004e-19 < t < 2.09999999999999997e-59Initial program 97.1%
Taylor expanded in a around inf
lower-/.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower--.f6489.4
Applied rewrites89.4%
Final simplification89.0%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma (- 1.0 (/ z t)) y x))) (if (<= t -6.8e-19) t_1 (if (<= t 2.1e-59) (fma (/ y a) z x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma((1.0 - (z / t)), y, x);
double tmp;
if (t <= -6.8e-19) {
tmp = t_1;
} else if (t <= 2.1e-59) {
tmp = fma((y / a), z, x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(Float64(1.0 - Float64(z / t)), y, x) tmp = 0.0 if (t <= -6.8e-19) tmp = t_1; elseif (t <= 2.1e-59) tmp = fma(Float64(y / a), z, x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(1.0 - N[(z / t), $MachinePrecision]), $MachinePrecision] * y + x), $MachinePrecision]}, If[LessEqual[t, -6.8e-19], t$95$1, If[LessEqual[t, 2.1e-59], N[(N[(y / a), $MachinePrecision] * z + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(1 - \frac{z}{t}, y, x\right)\\
\mathbf{if}\;t \leq -6.8 \cdot 10^{-19}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 2.1 \cdot 10^{-59}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, z, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -6.8000000000000004e-19 or 2.09999999999999997e-59 < t Initial program 79.3%
Taylor expanded in a around 0
+-commutativeN/A
mul-1-negN/A
associate-/l*N/A
*-commutativeN/A
distribute-lft-neg-inN/A
lower-fma.f64N/A
neg-sub0N/A
div-subN/A
*-inversesN/A
associate-+l-N/A
neg-sub0N/A
mul-1-negN/A
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f6488.7
Applied rewrites88.7%
if -6.8000000000000004e-19 < t < 2.09999999999999997e-59Initial program 97.1%
Taylor expanded in t around 0
*-commutativeN/A
lower-*.f6494.8
Applied rewrites94.8%
Taylor expanded in t around 0
+-commutativeN/A
associate-*l/N/A
lower-fma.f64N/A
lower-/.f6487.8
Applied rewrites87.8%
(FPCore (x y z t a) :precision binary64 (if (<= t -3.2e-19) (+ y x) (if (<= t 1.9e+105) (fma (/ y a) z x) (+ y x))))
double code(double x, double y, double z, double t, double a) {
double tmp;
if (t <= -3.2e-19) {
tmp = y + x;
} else if (t <= 1.9e+105) {
tmp = fma((y / a), z, x);
} else {
tmp = y + x;
}
return tmp;
}
function code(x, y, z, t, a) tmp = 0.0 if (t <= -3.2e-19) tmp = Float64(y + x); elseif (t <= 1.9e+105) tmp = fma(Float64(y / a), z, x); else tmp = Float64(y + x); end return tmp end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -3.2e-19], N[(y + x), $MachinePrecision], If[LessEqual[t, 1.9e+105], N[(N[(y / a), $MachinePrecision] * z + x), $MachinePrecision], N[(y + x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;t \leq -3.2 \cdot 10^{-19}:\\
\;\;\;\;y + x\\
\mathbf{elif}\;t \leq 1.9 \cdot 10^{+105}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{a}, z, x\right)\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if t < -3.19999999999999982e-19 or 1.9e105 < t Initial program 76.6%
Taylor expanded in t around inf
+-commutativeN/A
lower-+.f6486.0
Applied rewrites86.0%
if -3.19999999999999982e-19 < t < 1.9e105Initial program 96.2%
Taylor expanded in t around 0
*-commutativeN/A
lower-*.f6490.2
Applied rewrites90.2%
Taylor expanded in t around 0
+-commutativeN/A
associate-*l/N/A
lower-fma.f64N/A
lower-/.f6482.1
Applied rewrites82.1%
(FPCore (x y z t a) :precision binary64 (if (<= z -2.6e+205) (* (/ y a) z) (+ y x)))
double code(double x, double y, double z, double t, double a) {
double tmp;
if (z <= -2.6e+205) {
tmp = (y / a) * z;
} else {
tmp = y + x;
}
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) :: tmp
if (z <= (-2.6d+205)) then
tmp = (y / a) * z
else
tmp = y + x
end if
code = tmp
end function
public static double code(double x, double y, double z, double t, double a) {
double tmp;
if (z <= -2.6e+205) {
tmp = (y / a) * z;
} else {
tmp = y + x;
}
return tmp;
}
def code(x, y, z, t, a): tmp = 0 if z <= -2.6e+205: tmp = (y / a) * z else: tmp = y + x return tmp
function code(x, y, z, t, a) tmp = 0.0 if (z <= -2.6e+205) tmp = Float64(Float64(y / a) * z); else tmp = Float64(y + x); end return tmp end
function tmp_2 = code(x, y, z, t, a) tmp = 0.0; if (z <= -2.6e+205) tmp = (y / a) * z; else tmp = y + x; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_] := If[LessEqual[z, -2.6e+205], N[(N[(y / a), $MachinePrecision] * z), $MachinePrecision], N[(y + x), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.6 \cdot 10^{+205}:\\
\;\;\;\;\frac{y}{a} \cdot z\\
\mathbf{else}:\\
\;\;\;\;y + x\\
\end{array}
\end{array}
if z < -2.5999999999999999e205Initial program 90.7%
Taylor expanded in z around inf
associate-/l*N/A
*-commutativeN/A
lower-*.f64N/A
lower-/.f64N/A
lower--.f6459.4
Applied rewrites59.4%
Taylor expanded in a around inf
Applied rewrites48.6%
Applied rewrites48.7%
if -2.5999999999999999e205 < z Initial program 86.5%
Taylor expanded in t around inf
+-commutativeN/A
lower-+.f6467.8
Applied rewrites67.8%
(FPCore (x y z t a) :precision binary64 (+ y x))
double code(double x, double y, double z, double t, double a) {
return y + 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 + x
end function
public static double code(double x, double y, double z, double t, double a) {
return y + x;
}
def code(x, y, z, t, a): return y + x
function code(x, y, z, t, a) return Float64(y + x) end
function tmp = code(x, y, z, t, a) tmp = y + x; end
code[x_, y_, z_, t_, a_] := N[(y + x), $MachinePrecision]
\begin{array}{l}
\\
y + x
\end{array}
Initial program 86.8%
Taylor expanded in t around inf
+-commutativeN/A
lower-+.f6464.7
Applied rewrites64.7%
(FPCore (x y z t a) :precision binary64 (+ x (/ y (/ (- a t) (- z t)))))
double code(double x, double y, double z, double t, double a) {
return x + (y / ((a - t) / (z - 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 / ((a - t) / (z - t)))
end function
public static double code(double x, double y, double z, double t, double a) {
return x + (y / ((a - t) / (z - t)));
}
def code(x, y, z, t, a): return x + (y / ((a - t) / (z - t)))
function code(x, y, z, t, a) return Float64(x + Float64(y / Float64(Float64(a - t) / Float64(z - t)))) end
function tmp = code(x, y, z, t, a) tmp = x + (y / ((a - t) / (z - t))); end
code[x_, y_, z_, t_, a_] := N[(x + N[(y / N[(N[(a - t), $MachinePrecision] / N[(z - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \frac{y}{\frac{a - t}{z - t}}
\end{array}
herbie shell --seed 2024276
(FPCore (x y z t a)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTicks from plot-0.2.3.4, B"
:precision binary64
:alt
(! :herbie-platform default (+ x (/ y (/ (- a t) (- z t)))))
(+ x (/ (* y (- z t)) (- a t))))