
(FPCore (x y z t a) :precision binary64 (- (+ x y) (/ (* (- z t) y) (- a t))))
double code(double x, double y, double z, double t, double a) {
return (x + y) - (((z - t) * y) / (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) * y) / (a - t))
end function
public static double code(double x, double y, double z, double t, double a) {
return (x + y) - (((z - t) * y) / (a - t));
}
def code(x, y, z, t, a): return (x + y) - (((z - t) * y) / (a - t))
function code(x, y, z, t, a) return Float64(Float64(x + y) - Float64(Float64(Float64(z - t) * y) / Float64(a - t))) end
function tmp = code(x, y, z, t, a) tmp = (x + y) - (((z - t) * y) / (a - t)); end
code[x_, y_, z_, t_, a_] := N[(N[(x + y), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - \frac{\left(z - t\right) \cdot y}{a - t}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t a) :precision binary64 (- (+ x y) (/ (* (- z t) y) (- a t))))
double code(double x, double y, double z, double t, double a) {
return (x + y) - (((z - t) * y) / (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) * y) / (a - t))
end function
public static double code(double x, double y, double z, double t, double a) {
return (x + y) - (((z - t) * y) / (a - t));
}
def code(x, y, z, t, a): return (x + y) - (((z - t) * y) / (a - t))
function code(x, y, z, t, a) return Float64(Float64(x + y) - Float64(Float64(Float64(z - t) * y) / Float64(a - t))) end
function tmp = code(x, y, z, t, a) tmp = (x + y) - (((z - t) * y) / (a - t)); end
code[x_, y_, z_, t_, a_] := N[(N[(x + y), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - \frac{\left(z - t\right) \cdot y}{a - t}
\end{array}
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (fma y (+ 1.0 (/ (- z t) (- t a))) x))
(t_2 (+ (+ x y) (/ (* y (- z t)) (- t a)))))
(if (<= t_2 -5e-193) t_1 (if (<= t_2 0.0) (fma (/ y t) (- z a) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma(y, (1.0 + ((z - t) / (t - a))), x);
double t_2 = (x + y) + ((y * (z - t)) / (t - a));
double tmp;
if (t_2 <= -5e-193) {
tmp = t_1;
} else if (t_2 <= 0.0) {
tmp = fma((y / t), (z - a), x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(y, Float64(1.0 + Float64(Float64(z - t) / Float64(t - a))), x) t_2 = Float64(Float64(x + y) + Float64(Float64(y * Float64(z - t)) / Float64(t - a))) tmp = 0.0 if (t_2 <= -5e-193) tmp = t_1; elseif (t_2 <= 0.0) tmp = fma(Float64(y / t), Float64(z - a), x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(1.0 + N[(N[(z - t), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -5e-193], t$95$1, If[LessEqual[t$95$2, 0.0], N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, 1 + \frac{z - t}{t - a}, x\right)\\
t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\
\mathbf{if}\;t\_2 \leq -5 \cdot 10^{-193}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t\_2 \leq 0:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -5.0000000000000005e-193 or 0.0 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) Initial program 85.4%
Taylor expanded in x around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6494.1
Applied rewrites94.1%
if -5.0000000000000005e-193 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 0.0Initial program 8.2%
Taylor expanded in t around inf
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
+-commutativeN/A
associate-+r+N/A
mul-1-negN/A
sub-negN/A
associate-/l*N/A
*-commutativeN/A
associate-/l*N/A
distribute-rgt-out--N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f6499.9
Applied rewrites99.9%
Final simplification94.6%
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (fma y (/ z (- t a)) x))
(t_2 (+ (+ x y) (/ (* y (- z t)) (- t a))))
(t_3 (+ (+ x y) (/ (* y z) (- t a)))))
(if (<= t_2 -1.5e+305)
t_1
(if (<= t_2 -5e-193)
t_3
(if (<= t_2 1e-211)
(fma (/ y t) (- z a) x)
(if (<= t_2 4e+197) t_3 t_1))))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma(y, (z / (t - a)), x);
double t_2 = (x + y) + ((y * (z - t)) / (t - a));
double t_3 = (x + y) + ((y * z) / (t - a));
double tmp;
if (t_2 <= -1.5e+305) {
tmp = t_1;
} else if (t_2 <= -5e-193) {
tmp = t_3;
} else if (t_2 <= 1e-211) {
tmp = fma((y / t), (z - a), x);
} else if (t_2 <= 4e+197) {
tmp = t_3;
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(y, Float64(z / Float64(t - a)), x) t_2 = Float64(Float64(x + y) + Float64(Float64(y * Float64(z - t)) / Float64(t - a))) t_3 = Float64(Float64(x + y) + Float64(Float64(y * z) / Float64(t - a))) tmp = 0.0 if (t_2 <= -1.5e+305) tmp = t_1; elseif (t_2 <= -5e-193) tmp = t_3; elseif (t_2 <= 1e-211) tmp = fma(Float64(y / t), Float64(z - a), x); elseif (t_2 <= 4e+197) tmp = t_3; else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(z / N[(t - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * N[(z - t), $MachinePrecision]), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[(N[(x + y), $MachinePrecision] + N[(N[(y * z), $MachinePrecision] / N[(t - a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$2, -1.5e+305], t$95$1, If[LessEqual[t$95$2, -5e-193], t$95$3, If[LessEqual[t$95$2, 1e-211], N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision], If[LessEqual[t$95$2, 4e+197], t$95$3, t$95$1]]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\
t_2 := \left(x + y\right) + \frac{y \cdot \left(z - t\right)}{t - a}\\
t_3 := \left(x + y\right) + \frac{y \cdot z}{t - a}\\
\mathbf{if}\;t\_2 \leq -1.5 \cdot 10^{+305}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t\_2 \leq -5 \cdot 10^{-193}:\\
\;\;\;\;t\_3\\
\mathbf{elif}\;t\_2 \leq 10^{-211}:\\
\;\;\;\;\mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\
\mathbf{elif}\;t\_2 \leq 4 \cdot 10^{+197}:\\
\;\;\;\;t\_3\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -1.49999999999999991e305 or 3.9999999999999998e197 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) Initial program 57.6%
Taylor expanded in x around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6491.3
Applied rewrites91.3%
Taylor expanded in z around inf
Applied rewrites87.8%
if -1.49999999999999991e305 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < -5.0000000000000005e-193 or 1.00000000000000009e-211 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 3.9999999999999998e197Initial program 98.3%
Taylor expanded in z around inf
lower-*.f6496.6
Applied rewrites96.6%
if -5.0000000000000005e-193 < (-.f64 (+.f64 x y) (/.f64 (*.f64 (-.f64 z t) y) (-.f64 a t))) < 1.00000000000000009e-211Initial program 17.2%
Taylor expanded in t around inf
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
+-commutativeN/A
associate-+r+N/A
mul-1-negN/A
sub-negN/A
associate-/l*N/A
*-commutativeN/A
associate-/l*N/A
distribute-rgt-out--N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f6499.9
Applied rewrites99.9%
Final simplification94.4%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma y (- 1.0 (/ z a)) x))) (if (<= a -900000.0) t_1 (if (<= a 5.3e-31) (fma y (/ z (- t a)) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma(y, (1.0 - (z / a)), x);
double tmp;
if (a <= -900000.0) {
tmp = t_1;
} else if (a <= 5.3e-31) {
tmp = fma(y, (z / (t - a)), x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(y, Float64(1.0 - Float64(z / a)), x) tmp = 0.0 if (a <= -900000.0) tmp = t_1; elseif (a <= 5.3e-31) tmp = fma(y, Float64(z / Float64(t - a)), x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[a, -900000.0], t$95$1, If[LessEqual[a, 5.3e-31], N[(y * N[(z / N[(t - a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
\mathbf{if}\;a \leq -900000:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;a \leq 5.3 \cdot 10^{-31}:\\
\;\;\;\;\mathsf{fma}\left(y, \frac{z}{t - a}, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if a < -9e5 or 5.3000000000000001e-31 < a Initial program 80.5%
Taylor expanded in t around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
lower-fma.f64N/A
lower--.f64N/A
lower-/.f6487.8
Applied rewrites87.8%
if -9e5 < a < 5.3000000000000001e-31Initial program 75.4%
Taylor expanded in x around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6486.3
Applied rewrites86.3%
Taylor expanded in z around inf
Applied rewrites90.4%
Final simplification89.0%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma (/ y t) (- z a) x))) (if (<= t -2.3e-64) t_1 (if (<= t 1.8e-62) (fma y (- 1.0 (/ z a)) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma((y / t), (z - a), x);
double tmp;
if (t <= -2.3e-64) {
tmp = t_1;
} else if (t <= 1.8e-62) {
tmp = fma(y, (1.0 - (z / a)), x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(Float64(y / t), Float64(z - a), x) tmp = 0.0 if (t <= -2.3e-64) tmp = t_1; elseif (t <= 1.8e-62) tmp = fma(y, Float64(1.0 - Float64(z / a)), x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y / t), $MachinePrecision] * N[(z - a), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[t, -2.3e-64], t$95$1, If[LessEqual[t, 1.8e-62], N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(\frac{y}{t}, z - a, x\right)\\
\mathbf{if}\;t \leq -2.3 \cdot 10^{-64}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 1.8 \cdot 10^{-62}:\\
\;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -2.3000000000000001e-64 or 1.8e-62 < t Initial program 69.3%
Taylor expanded in t around inf
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
+-commutativeN/A
associate-+r+N/A
mul-1-negN/A
sub-negN/A
associate-/l*N/A
*-commutativeN/A
associate-/l*N/A
distribute-rgt-out--N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f6485.2
Applied rewrites85.2%
if -2.3000000000000001e-64 < t < 1.8e-62Initial program 91.5%
Taylor expanded in t around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
lower-fma.f64N/A
lower--.f64N/A
lower-/.f6489.7
Applied rewrites89.7%
(FPCore (x y z t a) :precision binary64 (let* ((t_1 (fma y (/ z t) x))) (if (<= t -2.2e-64) t_1 (if (<= t 3.5e-79) (fma y (- 1.0 (/ z a)) x) t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = fma(y, (z / t), x);
double tmp;
if (t <= -2.2e-64) {
tmp = t_1;
} else if (t <= 3.5e-79) {
tmp = fma(y, (1.0 - (z / a)), x);
} else {
tmp = t_1;
}
return tmp;
}
function code(x, y, z, t, a) t_1 = fma(y, Float64(z / t), x) tmp = 0.0 if (t <= -2.2e-64) tmp = t_1; elseif (t <= 3.5e-79) tmp = fma(y, Float64(1.0 - Float64(z / a)), x); else tmp = t_1; end return tmp end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(y * N[(z / t), $MachinePrecision] + x), $MachinePrecision]}, If[LessEqual[t, -2.2e-64], t$95$1, If[LessEqual[t, 3.5e-79], N[(y * N[(1.0 - N[(z / a), $MachinePrecision]), $MachinePrecision] + x), $MachinePrecision], t$95$1]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(y, \frac{z}{t}, x\right)\\
\mathbf{if}\;t \leq -2.2 \cdot 10^{-64}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 3.5 \cdot 10^{-79}:\\
\;\;\;\;\mathsf{fma}\left(y, 1 - \frac{z}{a}, x\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -2.2e-64 or 3.5000000000000003e-79 < t Initial program 69.5%
Taylor expanded in x around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6487.6
Applied rewrites87.6%
Taylor expanded in a around 0
Applied rewrites82.9%
if -2.2e-64 < t < 3.5000000000000003e-79Initial program 91.4%
Taylor expanded in t around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
lower-fma.f64N/A
lower--.f64N/A
lower-/.f6489.6
Applied rewrites89.6%
(FPCore (x y z t a) :precision binary64 (if (<= a -1.2e+70) (+ x y) (if (<= a 1.45e-49) (fma y (/ z t) x) (+ x y))))
double code(double x, double y, double z, double t, double a) {
double tmp;
if (a <= -1.2e+70) {
tmp = x + y;
} else if (a <= 1.45e-49) {
tmp = fma(y, (z / t), x);
} else {
tmp = x + y;
}
return tmp;
}
function code(x, y, z, t, a) tmp = 0.0 if (a <= -1.2e+70) tmp = Float64(x + y); elseif (a <= 1.45e-49) tmp = fma(y, Float64(z / t), x); else tmp = Float64(x + y); end return tmp end
code[x_, y_, z_, t_, a_] := If[LessEqual[a, -1.2e+70], N[(x + y), $MachinePrecision], If[LessEqual[a, 1.45e-49], N[(y * N[(z / t), $MachinePrecision] + x), $MachinePrecision], N[(x + y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;a \leq -1.2 \cdot 10^{+70}:\\
\;\;\;\;x + y\\
\mathbf{elif}\;a \leq 1.45 \cdot 10^{-49}:\\
\;\;\;\;\mathsf{fma}\left(y, \frac{z}{t}, x\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if a < -1.19999999999999993e70 or 1.45e-49 < a Initial program 81.8%
Taylor expanded in a around inf
+-commutativeN/A
lower-+.f6483.1
Applied rewrites83.1%
if -1.19999999999999993e70 < a < 1.45e-49Initial program 74.8%
Taylor expanded in x around 0
associate--l+N/A
+-commutativeN/A
*-rgt-identityN/A
associate-/l*N/A
distribute-lft-out--N/A
unsub-negN/A
mul-1-negN/A
lower-fma.f64N/A
mul-1-negN/A
unsub-negN/A
lower--.f64N/A
lower-/.f64N/A
lower--.f64N/A
lower--.f6485.8
Applied rewrites85.8%
Taylor expanded in a around 0
Applied rewrites76.4%
Final simplification79.6%
(FPCore (x y z t a) :precision binary64 (if (<= t -6.4e+239) x (if (<= t 1.25e+117) (+ x y) x)))
double code(double x, double y, double z, double t, double a) {
double tmp;
if (t <= -6.4e+239) {
tmp = x;
} else if (t <= 1.25e+117) {
tmp = x + y;
} else {
tmp = 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 (t <= (-6.4d+239)) then
tmp = x
else if (t <= 1.25d+117) 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 (t <= -6.4e+239) {
tmp = x;
} else if (t <= 1.25e+117) {
tmp = x + y;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t, a): tmp = 0 if t <= -6.4e+239: tmp = x elif t <= 1.25e+117: tmp = x + y else: tmp = x return tmp
function code(x, y, z, t, a) tmp = 0.0 if (t <= -6.4e+239) tmp = x; elseif (t <= 1.25e+117) tmp = Float64(x + y); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z, t, a) tmp = 0.0; if (t <= -6.4e+239) tmp = x; elseif (t <= 1.25e+117) tmp = x + y; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_] := If[LessEqual[t, -6.4e+239], x, If[LessEqual[t, 1.25e+117], N[(x + y), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;t \leq -6.4 \cdot 10^{+239}:\\
\;\;\;\;x\\
\mathbf{elif}\;t \leq 1.25 \cdot 10^{+117}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if t < -6.4000000000000003e239 or 1.24999999999999996e117 < t Initial program 44.2%
Taylor expanded in a around 0
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f64N/A
+-commutativeN/A
lower-+.f6452.5
Applied rewrites52.5%
Taylor expanded in z around 0
Applied rewrites75.3%
Applied rewrites75.3%
if -6.4000000000000003e239 < t < 1.24999999999999996e117Initial program 85.8%
Taylor expanded in a around inf
+-commutativeN/A
lower-+.f6470.2
Applied rewrites70.2%
Final simplification71.1%
(FPCore (x y z t a) :precision binary64 x)
double code(double x, double y, double z, double t, double a) {
return 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 = 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 78.2%
Taylor expanded in a around 0
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f64N/A
+-commutativeN/A
lower-+.f6449.9
Applied rewrites49.9%
Taylor expanded in z around 0
Applied rewrites57.7%
Applied rewrites57.7%
(FPCore (x y z t a) :precision binary64 0.0)
double code(double x, double y, double z, double t, double a) {
return 0.0;
}
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 = 0.0d0
end function
public static double code(double x, double y, double z, double t, double a) {
return 0.0;
}
def code(x, y, z, t, a): return 0.0
function code(x, y, z, t, a) return 0.0 end
function tmp = code(x, y, z, t, a) tmp = 0.0; end
code[x_, y_, z_, t_, a_] := 0.0
\begin{array}{l}
\\
0
\end{array}
Initial program 78.2%
Taylor expanded in z around 0
cancel-sign-sub-invN/A
metadata-evalN/A
*-lft-identityN/A
+-commutativeN/A
*-commutativeN/A
associate-/l*N/A
lower-fma.f64N/A
lower-/.f64N/A
lower--.f64N/A
+-commutativeN/A
lower-+.f6467.4
Applied rewrites67.4%
Taylor expanded in y around inf
Applied rewrites19.6%
Taylor expanded in t around inf
Applied rewrites2.7%
(FPCore (x y z t a)
:precision binary64
(let* ((t_1 (- (+ y x) (* (* (- z t) (/ 1.0 (- a t))) y)))
(t_2 (- (+ x y) (/ (* (- z t) y) (- a t)))))
(if (< t_2 -1.3664970889390727e-7)
t_1
(if (< t_2 1.4754293444577233e-239)
(/ (- (* y (- a z)) (* x t)) (- a t))
t_1))))
double code(double x, double y, double z, double t, double a) {
double t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y);
double t_2 = (x + y) - (((z - t) * y) / (a - t));
double tmp;
if (t_2 < -1.3664970889390727e-7) {
tmp = t_1;
} else if (t_2 < 1.4754293444577233e-239) {
tmp = ((y * (a - z)) - (x * t)) / (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) :: t_2
real(8) :: tmp
t_1 = (y + x) - (((z - t) * (1.0d0 / (a - t))) * y)
t_2 = (x + y) - (((z - t) * y) / (a - t))
if (t_2 < (-1.3664970889390727d-7)) then
tmp = t_1
else if (t_2 < 1.4754293444577233d-239) then
tmp = ((y * (a - z)) - (x * t)) / (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 = (y + x) - (((z - t) * (1.0 / (a - t))) * y);
double t_2 = (x + y) - (((z - t) * y) / (a - t));
double tmp;
if (t_2 < -1.3664970889390727e-7) {
tmp = t_1;
} else if (t_2 < 1.4754293444577233e-239) {
tmp = ((y * (a - z)) - (x * t)) / (a - t);
} else {
tmp = t_1;
}
return tmp;
}
def code(x, y, z, t, a): t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y) t_2 = (x + y) - (((z - t) * y) / (a - t)) tmp = 0 if t_2 < -1.3664970889390727e-7: tmp = t_1 elif t_2 < 1.4754293444577233e-239: tmp = ((y * (a - z)) - (x * t)) / (a - t) else: tmp = t_1 return tmp
function code(x, y, z, t, a) t_1 = Float64(Float64(y + x) - Float64(Float64(Float64(z - t) * Float64(1.0 / Float64(a - t))) * y)) t_2 = Float64(Float64(x + y) - Float64(Float64(Float64(z - t) * y) / Float64(a - t))) tmp = 0.0 if (t_2 < -1.3664970889390727e-7) tmp = t_1; elseif (t_2 < 1.4754293444577233e-239) tmp = Float64(Float64(Float64(y * Float64(a - z)) - Float64(x * t)) / Float64(a - t)); else tmp = t_1; end return tmp end
function tmp_2 = code(x, y, z, t, a) t_1 = (y + x) - (((z - t) * (1.0 / (a - t))) * y); t_2 = (x + y) - (((z - t) * y) / (a - t)); tmp = 0.0; if (t_2 < -1.3664970889390727e-7) tmp = t_1; elseif (t_2 < 1.4754293444577233e-239) tmp = ((y * (a - z)) - (x * t)) / (a - t); else tmp = t_1; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_] := Block[{t$95$1 = N[(N[(y + x), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * N[(1.0 / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(N[(x + y), $MachinePrecision] - N[(N[(N[(z - t), $MachinePrecision] * y), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t$95$2, -1.3664970889390727e-7], t$95$1, If[Less[t$95$2, 1.4754293444577233e-239], N[(N[(N[(y * N[(a - z), $MachinePrecision]), $MachinePrecision] - N[(x * t), $MachinePrecision]), $MachinePrecision] / N[(a - t), $MachinePrecision]), $MachinePrecision], t$95$1]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \left(y + x\right) - \left(\left(z - t\right) \cdot \frac{1}{a - t}\right) \cdot y\\
t_2 := \left(x + y\right) - \frac{\left(z - t\right) \cdot y}{a - t}\\
\mathbf{if}\;t\_2 < -1.3664970889390727 \cdot 10^{-7}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t\_2 < 1.4754293444577233 \cdot 10^{-239}:\\
\;\;\;\;\frac{y \cdot \left(a - z\right) - x \cdot t}{a - t}\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
herbie shell --seed 2024233
(FPCore (x y z t a)
:name "Graphics.Rendering.Plot.Render.Plot.Axis:renderAxisTick from plot-0.2.3.4, B"
:precision binary64
:alt
(! :herbie-platform default (if (< (- (+ x y) (/ (* (- z t) y) (- a t))) -13664970889390727/100000000000000000000000) (- (+ y x) (* (* (- z t) (/ 1 (- a t))) y)) (if (< (- (+ x y) (/ (* (- z t) y) (- a t))) 14754293444577233/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ (- (* y (- a z)) (* x t)) (- a t)) (- (+ y x) (* (* (- z t) (/ 1 (- a t))) y)))))
(- (+ x y) (/ (* (- z t) y) (- a t))))