
(FPCore (x y z t) :precision binary64 (- x (/ (log (+ (- 1.0 y) (* y (exp z)))) t)))
double code(double x, double y, double z, double t) {
return x - (log(((1.0 - y) + (y * exp(z)))) / t);
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = x - (log(((1.0d0 - y) + (y * exp(z)))) / t)
end function
public static double code(double x, double y, double z, double t) {
return x - (Math.log(((1.0 - y) + (y * Math.exp(z)))) / t);
}
def code(x, y, z, t): return x - (math.log(((1.0 - y) + (y * math.exp(z)))) / t)
function code(x, y, z, t) return Float64(x - Float64(log(Float64(Float64(1.0 - y) + Float64(y * exp(z)))) / t)) end
function tmp = code(x, y, z, t) tmp = x - (log(((1.0 - y) + (y * exp(z)))) / t); end
code[x_, y_, z_, t_] := N[(x - N[(N[Log[N[(N[(1.0 - y), $MachinePrecision] + N[(y * N[Exp[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{\log \left(\left(1 - y\right) + y \cdot e^{z}\right)}{t}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 11 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t) :precision binary64 (- x (/ (log (+ (- 1.0 y) (* y (exp z)))) t)))
double code(double x, double y, double z, double t) {
return x - (log(((1.0 - y) + (y * exp(z)))) / t);
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = x - (log(((1.0d0 - y) + (y * exp(z)))) / t)
end function
public static double code(double x, double y, double z, double t) {
return x - (Math.log(((1.0 - y) + (y * Math.exp(z)))) / t);
}
def code(x, y, z, t): return x - (math.log(((1.0 - y) + (y * math.exp(z)))) / t)
function code(x, y, z, t) return Float64(x - Float64(log(Float64(Float64(1.0 - y) + Float64(y * exp(z)))) / t)) end
function tmp = code(x, y, z, t) tmp = x - (log(((1.0 - y) + (y * exp(z)))) / t); end
code[x_, y_, z_, t_] := N[(x - N[(N[Log[N[(N[(1.0 - y), $MachinePrecision] + N[(y * N[Exp[z], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{\log \left(\left(1 - y\right) + y \cdot e^{z}\right)}{t}
\end{array}
(FPCore (x y z t) :precision binary64 (- x (/ (log1p (/ y (/ 1.0 (expm1 z)))) t)))
double code(double x, double y, double z, double t) {
return x - (log1p((y / (1.0 / expm1(z)))) / t);
}
public static double code(double x, double y, double z, double t) {
return x - (Math.log1p((y / (1.0 / Math.expm1(z)))) / t);
}
def code(x, y, z, t): return x - (math.log1p((y / (1.0 / math.expm1(z)))) / t)
function code(x, y, z, t) return Float64(x - Float64(log1p(Float64(y / Float64(1.0 / expm1(z)))) / t)) end
code[x_, y_, z_, t_] := N[(x - N[(N[Log[1 + N[(y / N[(1.0 / N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1}{\mathsf{expm1}\left(z\right)}}\right)}{t}
\end{array}
Initial program 60.4%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.8%
Simplified98.8%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6498.8%
Applied egg-rr98.8%
(FPCore (x y z t) :precision binary64 (- x (/ (log1p (* y (expm1 z))) t)))
double code(double x, double y, double z, double t) {
return x - (log1p((y * expm1(z))) / t);
}
public static double code(double x, double y, double z, double t) {
return x - (Math.log1p((y * Math.expm1(z))) / t);
}
def code(x, y, z, t): return x - (math.log1p((y * math.expm1(z))) / t)
function code(x, y, z, t) return Float64(x - Float64(log1p(Float64(y * expm1(z))) / t)) end
code[x_, y_, z_, t_] := N[(x - N[(N[Log[1 + N[(y * N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{\mathsf{log1p}\left(y \cdot \mathsf{expm1}\left(z\right)\right)}{t}
\end{array}
Initial program 60.4%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.8%
Simplified98.8%
(FPCore (x y z t)
:precision binary64
(if (<= y -6.8e+28)
(- x (/ (log1p (/ y (/ (+ 1.0 (* z -0.5)) z))) t))
(if (<= y 2.5e-6)
(+ x (/ -1.0 (/ (+ (* 0.5 (* y t)) (/ t (expm1 z))) y)))
(+
x
(/
-1.0
(/
t
(log1p (* z (+ y (* y (* z (+ 0.5 (* z 0.16666666666666666)))))))))))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 2.5e-6) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / expm1(z))) / y));
} else {
tmp = x + (-1.0 / (t / log1p((z * (y + (y * (z * (0.5 + (z * 0.16666666666666666)))))))));
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (Math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 2.5e-6) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / Math.expm1(z))) / y));
} else {
tmp = x + (-1.0 / (t / Math.log1p((z * (y + (y * (z * (0.5 + (z * 0.16666666666666666)))))))));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -6.8e+28: tmp = x - (math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t) elif y <= 2.5e-6: tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / math.expm1(z))) / y)) else: tmp = x + (-1.0 / (t / math.log1p((z * (y + (y * (z * (0.5 + (z * 0.16666666666666666))))))))) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -6.8e+28) tmp = Float64(x - Float64(log1p(Float64(y / Float64(Float64(1.0 + Float64(z * -0.5)) / z))) / t)); elseif (y <= 2.5e-6) tmp = Float64(x + Float64(-1.0 / Float64(Float64(Float64(0.5 * Float64(y * t)) + Float64(t / expm1(z))) / y))); else tmp = Float64(x + Float64(-1.0 / Float64(t / log1p(Float64(z * Float64(y + Float64(y * Float64(z * Float64(0.5 + Float64(z * 0.16666666666666666)))))))))); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[y, -6.8e+28], N[(x - N[(N[Log[1 + N[(y / N[(N[(1.0 + N[(z * -0.5), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.5e-6], N[(x + N[(-1.0 / N[(N[(N[(0.5 * N[(y * t), $MachinePrecision]), $MachinePrecision] + N[(t / N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x + N[(-1.0 / N[(t / N[Log[1 + N[(z * N[(y + N[(y * N[(z * N[(0.5 + N[(z * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.8 \cdot 10^{+28}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1 + z \cdot -0.5}{z}}\right)}{t}\\
\mathbf{elif}\;y \leq 2.5 \cdot 10^{-6}:\\
\;\;\;\;x + \frac{-1}{\frac{0.5 \cdot \left(y \cdot t\right) + \frac{t}{\mathsf{expm1}\left(z\right)}}{y}}\\
\mathbf{else}:\\
\;\;\;\;x + \frac{-1}{\frac{t}{\mathsf{log1p}\left(z \cdot \left(y + y \cdot \left(z \cdot \left(0.5 + z \cdot 0.16666666666666666\right)\right)\right)\right)}}\\
\end{array}
\end{array}
if y < -6.8e28Initial program 39.2%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Applied egg-rr99.9%
Taylor expanded in z around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f6484.0%
Simplified84.0%
if -6.8e28 < y < 2.5000000000000002e-6Initial program 78.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.1%
Simplified98.1%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
*-lowering-*.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6498.0%
Applied egg-rr98.0%
Taylor expanded in y around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
if 2.5000000000000002e-6 < y Initial program 24.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
Taylor expanded in z around 0
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
associate-*r*N/A
*-commutativeN/A
associate-*l*N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f6499.8%
Simplified99.8%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
distribute-lft-outN/A
associate-*l*N/A
*-lowering-*.f64N/A
*-lowering-*.f64N/A
+-commutativeN/A
+-lowering-+.f64N/A
*-lowering-*.f6499.9%
Applied egg-rr99.9%
Final simplification95.9%
(FPCore (x y z t)
:precision binary64
(if (<= y -6.8e+28)
(- x (/ (log1p (/ y (/ (+ 1.0 (* z -0.5)) z))) t))
(if (<= y 10000000.0)
(+ x (/ -1.0 (/ (+ (* 0.5 (* y t)) (/ t (expm1 z))) y)))
(-
x
(/
(log1p (/ y (/ (+ 1.0 (* z (+ -0.5 (* z 0.08333333333333333)))) z)))
t)))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 10000000.0) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / expm1(z))) / y));
} else {
tmp = x - (log1p((y / ((1.0 + (z * (-0.5 + (z * 0.08333333333333333)))) / z))) / t);
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (Math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 10000000.0) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / Math.expm1(z))) / y));
} else {
tmp = x - (Math.log1p((y / ((1.0 + (z * (-0.5 + (z * 0.08333333333333333)))) / z))) / t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -6.8e+28: tmp = x - (math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t) elif y <= 10000000.0: tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / math.expm1(z))) / y)) else: tmp = x - (math.log1p((y / ((1.0 + (z * (-0.5 + (z * 0.08333333333333333)))) / z))) / t) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -6.8e+28) tmp = Float64(x - Float64(log1p(Float64(y / Float64(Float64(1.0 + Float64(z * -0.5)) / z))) / t)); elseif (y <= 10000000.0) tmp = Float64(x + Float64(-1.0 / Float64(Float64(Float64(0.5 * Float64(y * t)) + Float64(t / expm1(z))) / y))); else tmp = Float64(x - Float64(log1p(Float64(y / Float64(Float64(1.0 + Float64(z * Float64(-0.5 + Float64(z * 0.08333333333333333)))) / z))) / t)); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[y, -6.8e+28], N[(x - N[(N[Log[1 + N[(y / N[(N[(1.0 + N[(z * -0.5), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 10000000.0], N[(x + N[(-1.0 / N[(N[(N[(0.5 * N[(y * t), $MachinePrecision]), $MachinePrecision] + N[(t / N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[1 + N[(y / N[(N[(1.0 + N[(z * N[(-0.5 + N[(z * 0.08333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.8 \cdot 10^{+28}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1 + z \cdot -0.5}{z}}\right)}{t}\\
\mathbf{elif}\;y \leq 10000000:\\
\;\;\;\;x + \frac{-1}{\frac{0.5 \cdot \left(y \cdot t\right) + \frac{t}{\mathsf{expm1}\left(z\right)}}{y}}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1 + z \cdot \left(-0.5 + z \cdot 0.08333333333333333\right)}{z}}\right)}{t}\\
\end{array}
\end{array}
if y < -6.8e28Initial program 39.2%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Applied egg-rr99.9%
Taylor expanded in z around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f6484.0%
Simplified84.0%
if -6.8e28 < y < 1e7Initial program 78.1%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.2%
Simplified98.2%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
*-lowering-*.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6498.1%
Applied egg-rr98.1%
Taylor expanded in y around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
if 1e7 < y Initial program 16.7%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Applied egg-rr99.8%
Taylor expanded in z around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
sub-negN/A
metadata-evalN/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f6499.8%
Simplified99.8%
Final simplification95.9%
(FPCore (x y z t)
:precision binary64
(if (<= y -6.8e+28)
(- x (/ (log1p (/ y (/ (+ 1.0 (* z -0.5)) z))) t))
(if (<= y 10000000.0)
(+ x (/ -1.0 (/ (+ (* 0.5 (* y t)) (/ t (expm1 z))) y)))
(- x (/ (log1p (* z (+ y (* y (* z 0.5))))) t)))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 10000000.0) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / expm1(z))) / y));
} else {
tmp = x - (log1p((z * (y + (y * (z * 0.5))))) / t);
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -6.8e+28) {
tmp = x - (Math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 10000000.0) {
tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / Math.expm1(z))) / y));
} else {
tmp = x - (Math.log1p((z * (y + (y * (z * 0.5))))) / t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -6.8e+28: tmp = x - (math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t) elif y <= 10000000.0: tmp = x + (-1.0 / (((0.5 * (y * t)) + (t / math.expm1(z))) / y)) else: tmp = x - (math.log1p((z * (y + (y * (z * 0.5))))) / t) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -6.8e+28) tmp = Float64(x - Float64(log1p(Float64(y / Float64(Float64(1.0 + Float64(z * -0.5)) / z))) / t)); elseif (y <= 10000000.0) tmp = Float64(x + Float64(-1.0 / Float64(Float64(Float64(0.5 * Float64(y * t)) + Float64(t / expm1(z))) / y))); else tmp = Float64(x - Float64(log1p(Float64(z * Float64(y + Float64(y * Float64(z * 0.5))))) / t)); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[y, -6.8e+28], N[(x - N[(N[Log[1 + N[(y / N[(N[(1.0 + N[(z * -0.5), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 10000000.0], N[(x + N[(-1.0 / N[(N[(N[(0.5 * N[(y * t), $MachinePrecision]), $MachinePrecision] + N[(t / N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[1 + N[(z * N[(y + N[(y * N[(z * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6.8 \cdot 10^{+28}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1 + z \cdot -0.5}{z}}\right)}{t}\\
\mathbf{elif}\;y \leq 10000000:\\
\;\;\;\;x + \frac{-1}{\frac{0.5 \cdot \left(y \cdot t\right) + \frac{t}{\mathsf{expm1}\left(z\right)}}{y}}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(z \cdot \left(y + y \cdot \left(z \cdot 0.5\right)\right)\right)}{t}\\
\end{array}
\end{array}
if y < -6.8e28Initial program 39.2%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Applied egg-rr99.9%
Taylor expanded in z around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f6484.0%
Simplified84.0%
if -6.8e28 < y < 1e7Initial program 78.1%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.2%
Simplified98.2%
clear-numN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
*-lowering-*.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6498.1%
Applied egg-rr98.1%
Taylor expanded in y around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
if 1e7 < y Initial program 16.7%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
Taylor expanded in z around 0
*-lowering-*.f64N/A
+-lowering-+.f64N/A
associate-*r*N/A
*-commutativeN/A
associate-*l*N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f6499.3%
Simplified99.3%
Final simplification95.8%
(FPCore (x y z t)
:precision binary64
(if (<= y -3.7e+27)
(- x (/ (log1p (/ y (/ (+ 1.0 (* z -0.5)) z))) t))
(if (<= y 2.5e-6)
(- x (* y (/ (expm1 z) t)))
(- x (/ (log1p (* z (+ y (* y (* z 0.5))))) t)))))
double code(double x, double y, double z, double t) {
double tmp;
if (y <= -3.7e+27) {
tmp = x - (log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 2.5e-6) {
tmp = x - (y * (expm1(z) / t));
} else {
tmp = x - (log1p((z * (y + (y * (z * 0.5))))) / t);
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (y <= -3.7e+27) {
tmp = x - (Math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t);
} else if (y <= 2.5e-6) {
tmp = x - (y * (Math.expm1(z) / t));
} else {
tmp = x - (Math.log1p((z * (y + (y * (z * 0.5))))) / t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if y <= -3.7e+27: tmp = x - (math.log1p((y / ((1.0 + (z * -0.5)) / z))) / t) elif y <= 2.5e-6: tmp = x - (y * (math.expm1(z) / t)) else: tmp = x - (math.log1p((z * (y + (y * (z * 0.5))))) / t) return tmp
function code(x, y, z, t) tmp = 0.0 if (y <= -3.7e+27) tmp = Float64(x - Float64(log1p(Float64(y / Float64(Float64(1.0 + Float64(z * -0.5)) / z))) / t)); elseif (y <= 2.5e-6) tmp = Float64(x - Float64(y * Float64(expm1(z) / t))); else tmp = Float64(x - Float64(log1p(Float64(z * Float64(y + Float64(y * Float64(z * 0.5))))) / t)); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[y, -3.7e+27], N[(x - N[(N[Log[1 + N[(y / N[(N[(1.0 + N[(z * -0.5), $MachinePrecision]), $MachinePrecision] / z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 2.5e-6], N[(x - N[(y * N[(N[(Exp[z] - 1), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[1 + N[(z * N[(y + N[(y * N[(z * 0.5), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.7 \cdot 10^{+27}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(\frac{y}{\frac{1 + z \cdot -0.5}{z}}\right)}{t}\\
\mathbf{elif}\;y \leq 2.5 \cdot 10^{-6}:\\
\;\;\;\;x - y \cdot \frac{\mathsf{expm1}\left(z\right)}{t}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(z \cdot \left(y + y \cdot \left(z \cdot 0.5\right)\right)\right)}{t}\\
\end{array}
\end{array}
if y < -3.70000000000000002e27Initial program 39.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Applied egg-rr99.9%
Taylor expanded in z around 0
/-lowering-/.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f6484.4%
Simplified84.4%
if -3.70000000000000002e27 < y < 2.5000000000000002e-6Initial program 78.9%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.1%
Simplified98.1%
Taylor expanded in y around 0
associate-/l*N/A
div-subN/A
*-lowering-*.f64N/A
div-subN/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6499.5%
Simplified99.5%
if 2.5000000000000002e-6 < y Initial program 24.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.8%
Simplified99.8%
Taylor expanded in z around 0
*-lowering-*.f64N/A
+-lowering-+.f64N/A
associate-*r*N/A
*-commutativeN/A
associate-*l*N/A
*-lowering-*.f64N/A
*-commutativeN/A
*-lowering-*.f6499.4%
Simplified99.4%
(FPCore (x y z t) :precision binary64 (if (<= z -1.15e+45) (- x (/ (* y (expm1 z)) t)) (- x (/ (log1p (* y z)) t))))
double code(double x, double y, double z, double t) {
double tmp;
if (z <= -1.15e+45) {
tmp = x - ((y * expm1(z)) / t);
} else {
tmp = x - (log1p((y * z)) / t);
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (z <= -1.15e+45) {
tmp = x - ((y * Math.expm1(z)) / t);
} else {
tmp = x - (Math.log1p((y * z)) / t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if z <= -1.15e+45: tmp = x - ((y * math.expm1(z)) / t) else: tmp = x - (math.log1p((y * z)) / t) return tmp
function code(x, y, z, t) tmp = 0.0 if (z <= -1.15e+45) tmp = Float64(x - Float64(Float64(y * expm1(z)) / t)); else tmp = Float64(x - Float64(log1p(Float64(y * z)) / t)); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[z, -1.15e+45], N[(x - N[(N[(y * N[(Exp[z] - 1), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[1 + N[(y * z), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.15 \cdot 10^{+45}:\\
\;\;\;\;x - \frac{y \cdot \mathsf{expm1}\left(z\right)}{t}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(y \cdot z\right)}{t}\\
\end{array}
\end{array}
if z < -1.15000000000000006e45Initial program 80.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
Taylor expanded in y around 0
*-lowering-*.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6476.2%
Simplified76.2%
if -1.15000000000000006e45 < z Initial program 52.3%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.3%
Simplified98.3%
Taylor expanded in z around 0
*-lowering-*.f6496.6%
Simplified96.6%
(FPCore (x y z t) :precision binary64 (if (<= z -2.8e+43) (- x (* y (/ (expm1 z) t))) (- x (/ (log1p (* y z)) t))))
double code(double x, double y, double z, double t) {
double tmp;
if (z <= -2.8e+43) {
tmp = x - (y * (expm1(z) / t));
} else {
tmp = x - (log1p((y * z)) / t);
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (z <= -2.8e+43) {
tmp = x - (y * (Math.expm1(z) / t));
} else {
tmp = x - (Math.log1p((y * z)) / t);
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if z <= -2.8e+43: tmp = x - (y * (math.expm1(z) / t)) else: tmp = x - (math.log1p((y * z)) / t) return tmp
function code(x, y, z, t) tmp = 0.0 if (z <= -2.8e+43) tmp = Float64(x - Float64(y * Float64(expm1(z) / t))); else tmp = Float64(x - Float64(log1p(Float64(y * z)) / t)); end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[z, -2.8e+43], N[(x - N[(y * N[(N[(Exp[z] - 1), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[1 + N[(y * z), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.8 \cdot 10^{+43}:\\
\;\;\;\;x - y \cdot \frac{\mathsf{expm1}\left(z\right)}{t}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\mathsf{log1p}\left(y \cdot z\right)}{t}\\
\end{array}
\end{array}
if z < -2.80000000000000019e43Initial program 80.5%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
Taylor expanded in y around 0
associate-/l*N/A
div-subN/A
*-lowering-*.f64N/A
div-subN/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6476.1%
Simplified76.1%
if -2.80000000000000019e43 < z Initial program 52.3%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.3%
Simplified98.3%
Taylor expanded in z around 0
*-lowering-*.f6496.6%
Simplified96.6%
(FPCore (x y z t) :precision binary64 (if (<= t 0.00205) (- x (* y (/ (expm1 z) t))) x))
double code(double x, double y, double z, double t) {
double tmp;
if (t <= 0.00205) {
tmp = x - (y * (expm1(z) / t));
} else {
tmp = x;
}
return tmp;
}
public static double code(double x, double y, double z, double t) {
double tmp;
if (t <= 0.00205) {
tmp = x - (y * (Math.expm1(z) / t));
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if t <= 0.00205: tmp = x - (y * (math.expm1(z) / t)) else: tmp = x return tmp
function code(x, y, z, t) tmp = 0.0 if (t <= 0.00205) tmp = Float64(x - Float64(y * Float64(expm1(z) / t))); else tmp = x; end return tmp end
code[x_, y_, z_, t_] := If[LessEqual[t, 0.00205], N[(x - N[(y * N[(N[(Exp[z] - 1), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;t \leq 0.00205:\\
\;\;\;\;x - y \cdot \frac{\mathsf{expm1}\left(z\right)}{t}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if t < 0.00205000000000000017Initial program 58.8%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.5%
Simplified98.5%
Taylor expanded in y around 0
associate-/l*N/A
div-subN/A
*-lowering-*.f64N/A
div-subN/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6485.2%
Simplified85.2%
if 0.00205000000000000017 < t Initial program 66.2%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
Taylor expanded in x around inf
Simplified93.0%
(FPCore (x y z t) :precision binary64 (if (<= z -4.1e-26) x (- x (* y (/ z t)))))
double code(double x, double y, double z, double t) {
double tmp;
if (z <= -4.1e-26) {
tmp = x;
} else {
tmp = x - (y * (z / t));
}
return tmp;
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8) :: tmp
if (z <= (-4.1d-26)) then
tmp = x
else
tmp = x - (y * (z / t))
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double tmp;
if (z <= -4.1e-26) {
tmp = x;
} else {
tmp = x - (y * (z / t));
}
return tmp;
}
def code(x, y, z, t): tmp = 0 if z <= -4.1e-26: tmp = x else: tmp = x - (y * (z / t)) return tmp
function code(x, y, z, t) tmp = 0.0 if (z <= -4.1e-26) tmp = x; else tmp = Float64(x - Float64(y * Float64(z / t))); end return tmp end
function tmp_2 = code(x, y, z, t) tmp = 0.0; if (z <= -4.1e-26) tmp = x; else tmp = x - (y * (z / t)); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := If[LessEqual[z, -4.1e-26], x, N[(x - N[(y * N[(z / t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.1 \cdot 10^{-26}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;x - y \cdot \frac{z}{t}\\
\end{array}
\end{array}
if z < -4.0999999999999999e-26Initial program 81.6%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6499.9%
Simplified99.9%
Taylor expanded in x around inf
Simplified64.5%
if -4.0999999999999999e-26 < z Initial program 49.6%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.2%
Simplified98.2%
flip--N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
clear-numN/A
flip--N/A
/-lowering-/.f64N/A
expm1-defineN/A
expm1-lowering-expm1.f6498.2%
Applied egg-rr98.2%
Taylor expanded in z around 0
mul-1-negN/A
unsub-negN/A
--lowering--.f64N/A
associate-/l*N/A
*-lowering-*.f64N/A
/-lowering-/.f6490.5%
Simplified90.5%
(FPCore (x y z t) :precision binary64 x)
double code(double x, double y, double z, double t) {
return x;
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
code = x
end function
public static double code(double x, double y, double z, double t) {
return x;
}
def code(x, y, z, t): return x
function code(x, y, z, t) return x end
function tmp = code(x, y, z, t) tmp = x; end
code[x_, y_, z_, t_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 60.4%
--lowering--.f64N/A
/-lowering-/.f64N/A
sub-negN/A
associate-+l+N/A
log1p-defineN/A
log1p-lowering-log1p.f64N/A
neg-mul-1N/A
*-commutativeN/A
distribute-rgt-outN/A
*-lowering-*.f64N/A
+-commutativeN/A
metadata-evalN/A
sub-negN/A
expm1-defineN/A
expm1-lowering-expm1.f6498.8%
Simplified98.8%
Taylor expanded in x around inf
Simplified71.1%
(FPCore (x y z t)
:precision binary64
(let* ((t_1 (/ (- 0.5) (* y t))))
(if (< z -2.8874623088207947e+119)
(- (- x (/ t_1 (* z z))) (* t_1 (/ (/ 2.0 z) (* z z))))
(- x (/ (log (+ 1.0 (* z y))) t)))))
double code(double x, double y, double z, double t) {
double t_1 = -0.5 / (y * t);
double tmp;
if (z < -2.8874623088207947e+119) {
tmp = (x - (t_1 / (z * z))) - (t_1 * ((2.0 / z) / (z * z)));
} else {
tmp = x - (log((1.0 + (z * y))) / t);
}
return tmp;
}
real(8) function code(x, y, z, t)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8) :: t_1
real(8) :: tmp
t_1 = -0.5d0 / (y * t)
if (z < (-2.8874623088207947d+119)) then
tmp = (x - (t_1 / (z * z))) - (t_1 * ((2.0d0 / z) / (z * z)))
else
tmp = x - (log((1.0d0 + (z * y))) / t)
end if
code = tmp
end function
public static double code(double x, double y, double z, double t) {
double t_1 = -0.5 / (y * t);
double tmp;
if (z < -2.8874623088207947e+119) {
tmp = (x - (t_1 / (z * z))) - (t_1 * ((2.0 / z) / (z * z)));
} else {
tmp = x - (Math.log((1.0 + (z * y))) / t);
}
return tmp;
}
def code(x, y, z, t): t_1 = -0.5 / (y * t) tmp = 0 if z < -2.8874623088207947e+119: tmp = (x - (t_1 / (z * z))) - (t_1 * ((2.0 / z) / (z * z))) else: tmp = x - (math.log((1.0 + (z * y))) / t) return tmp
function code(x, y, z, t) t_1 = Float64(Float64(-0.5) / Float64(y * t)) tmp = 0.0 if (z < -2.8874623088207947e+119) tmp = Float64(Float64(x - Float64(t_1 / Float64(z * z))) - Float64(t_1 * Float64(Float64(2.0 / z) / Float64(z * z)))); else tmp = Float64(x - Float64(log(Float64(1.0 + Float64(z * y))) / t)); end return tmp end
function tmp_2 = code(x, y, z, t) t_1 = -0.5 / (y * t); tmp = 0.0; if (z < -2.8874623088207947e+119) tmp = (x - (t_1 / (z * z))) - (t_1 * ((2.0 / z) / (z * z))); else tmp = x - (log((1.0 + (z * y))) / t); end tmp_2 = tmp; end
code[x_, y_, z_, t_] := Block[{t$95$1 = N[((-0.5) / N[(y * t), $MachinePrecision]), $MachinePrecision]}, If[Less[z, -2.8874623088207947e+119], N[(N[(x - N[(t$95$1 / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(t$95$1 * N[(N[(2.0 / z), $MachinePrecision] / N[(z * z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x - N[(N[Log[N[(1.0 + N[(z * y), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \frac{-0.5}{y \cdot t}\\
\mathbf{if}\;z < -2.8874623088207947 \cdot 10^{+119}:\\
\;\;\;\;\left(x - \frac{t\_1}{z \cdot z}\right) - t\_1 \cdot \frac{\frac{2}{z}}{z \cdot z}\\
\mathbf{else}:\\
\;\;\;\;x - \frac{\log \left(1 + z \cdot y\right)}{t}\\
\end{array}
\end{array}
herbie shell --seed 2024161
(FPCore (x y z t)
:name "System.Random.MWC.Distributions:truncatedExp from mwc-random-0.13.3.2"
:precision binary64
:alt
(! :herbie-platform default (if (< z -288746230882079470000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (- x (/ (/ (- 1/2) (* y t)) (* z z))) (* (/ (- 1/2) (* y t)) (/ (/ 2 z) (* z z)))) (- x (/ (log (+ 1 (* z y))) t))))
(- x (/ (log (+ (- 1.0 y) (* y (exp z)))) t)))