
(FPCore (x y z) :precision binary64 (/ (* x (- y z)) y))
double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y - z)) / y
end function
public static double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
def code(x, y, z): return (x * (y - z)) / y
function code(x, y, z) return Float64(Float64(x * Float64(y - z)) / y) end
function tmp = code(x, y, z) tmp = (x * (y - z)) / y; end
code[x_, y_, z_] := N[(N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot \left(y - z\right)}{y}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (/ (* x (- y z)) y))
double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y - z)) / y
end function
public static double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
def code(x, y, z): return (x * (y - z)) / y
function code(x, y, z) return Float64(Float64(x * Float64(y - z)) / y) end
function tmp = code(x, y, z) tmp = (x * (y - z)) / y; end
code[x_, y_, z_] := N[(N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot \left(y - z\right)}{y}
\end{array}
(FPCore (x y z) :precision binary64 (- x (* x (/ z y))))
double code(double x, double y, double z) {
return x - (x * (z / y));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x - (x * (z / y))
end function
public static double code(double x, double y, double z) {
return x - (x * (z / y));
}
def code(x, y, z): return x - (x * (z / y))
function code(x, y, z) return Float64(x - Float64(x * Float64(z / y))) end
function tmp = code(x, y, z) tmp = x - (x * (z / y)); end
code[x_, y_, z_] := N[(x - N[(x * N[(z / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - x \cdot \frac{z}{y}
\end{array}
Initial program 83.3%
associate-*r/98.0%
div-sub98.1%
*-inverses98.1%
Simplified98.1%
sub-neg98.1%
distribute-rgt-in98.1%
*-un-lft-identity98.1%
distribute-neg-frac98.1%
Applied egg-rr98.1%
Final simplification98.1%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.1e-30) (not (<= z 7.4e+33))) (* x (/ (- z) y)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.1e-30) || !(z <= 7.4e+33)) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((z <= (-3.1d-30)) .or. (.not. (z <= 7.4d+33))) then
tmp = x * (-z / y)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -3.1e-30) || !(z <= 7.4e+33)) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.1e-30) or not (z <= 7.4e+33): tmp = x * (-z / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.1e-30) || !(z <= 7.4e+33)) tmp = Float64(x * Float64(Float64(-z) / y)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -3.1e-30) || ~((z <= 7.4e+33))) tmp = x * (-z / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.1e-30], N[Not[LessEqual[z, 7.4e+33]], $MachinePrecision]], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.1 \cdot 10^{-30} \lor \neg \left(z \leq 7.4 \cdot 10^{+33}\right):\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -3.09999999999999991e-30 or 7.3999999999999997e33 < z Initial program 87.4%
associate-*r/96.4%
div-sub96.4%
*-inverses96.4%
Simplified96.4%
Taylor expanded in z around inf 69.0%
associate-*r/69.0%
mul-1-neg69.0%
distribute-rgt-neg-out69.0%
associate-*r/69.2%
Simplified69.2%
if -3.09999999999999991e-30 < z < 7.3999999999999997e33Initial program 78.6%
associate-*r/99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 80.5%
Final simplification74.5%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.1e-30) (not (<= z 2.9e+31))) (/ (- x) (/ y z)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.1e-30) || !(z <= 2.9e+31)) {
tmp = -x / (y / z);
} else {
tmp = x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if ((z <= (-3.1d-30)) .or. (.not. (z <= 2.9d+31))) then
tmp = -x / (y / z)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -3.1e-30) || !(z <= 2.9e+31)) {
tmp = -x / (y / z);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.1e-30) or not (z <= 2.9e+31): tmp = -x / (y / z) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.1e-30) || !(z <= 2.9e+31)) tmp = Float64(Float64(-x) / Float64(y / z)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -3.1e-30) || ~((z <= 2.9e+31))) tmp = -x / (y / z); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.1e-30], N[Not[LessEqual[z, 2.9e+31]], $MachinePrecision]], N[((-x) / N[(y / z), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.1 \cdot 10^{-30} \lor \neg \left(z \leq 2.9 \cdot 10^{+31}\right):\\
\;\;\;\;\frac{-x}{\frac{y}{z}}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -3.09999999999999991e-30 or 2.9e31 < z Initial program 87.4%
associate-*r/96.4%
div-sub96.4%
*-inverses96.4%
Simplified96.4%
sub-neg96.4%
distribute-rgt-in96.4%
*-un-lft-identity96.4%
distribute-neg-frac96.4%
Applied egg-rr96.4%
distribute-frac-neg96.4%
distribute-lft-neg-out96.4%
associate-/r/93.5%
unsub-neg93.5%
div-inv93.5%
clear-num94.7%
Applied egg-rr94.7%
associate-*r/88.6%
clear-num88.7%
Applied egg-rr88.7%
Taylor expanded in y around 0 69.0%
mul-1-neg69.0%
associate-/l*69.3%
distribute-neg-frac69.3%
Simplified69.3%
if -3.09999999999999991e-30 < z < 2.9e31Initial program 78.6%
associate-*r/99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 80.5%
Final simplification74.6%
(FPCore (x y z) :precision binary64 (if (<= z -2.9e-30) (/ (- x) (/ y z)) (if (<= z 2.05e+31) x (/ (* x (- z)) y))))
double code(double x, double y, double z) {
double tmp;
if (z <= -2.9e-30) {
tmp = -x / (y / z);
} else if (z <= 2.05e+31) {
tmp = x;
} else {
tmp = (x * -z) / y;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (z <= (-2.9d-30)) then
tmp = -x / (y / z)
else if (z <= 2.05d+31) then
tmp = x
else
tmp = (x * -z) / y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -2.9e-30) {
tmp = -x / (y / z);
} else if (z <= 2.05e+31) {
tmp = x;
} else {
tmp = (x * -z) / y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -2.9e-30: tmp = -x / (y / z) elif z <= 2.05e+31: tmp = x else: tmp = (x * -z) / y return tmp
function code(x, y, z) tmp = 0.0 if (z <= -2.9e-30) tmp = Float64(Float64(-x) / Float64(y / z)); elseif (z <= 2.05e+31) tmp = x; else tmp = Float64(Float64(x * Float64(-z)) / y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -2.9e-30) tmp = -x / (y / z); elseif (z <= 2.05e+31) tmp = x; else tmp = (x * -z) / y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -2.9e-30], N[((-x) / N[(y / z), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 2.05e+31], x, N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -2.9 \cdot 10^{-30}:\\
\;\;\;\;\frac{-x}{\frac{y}{z}}\\
\mathbf{elif}\;z \leq 2.05 \cdot 10^{+31}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\end{array}
\end{array}
if z < -2.89999999999999989e-30Initial program 85.5%
associate-*r/98.8%
div-sub98.8%
*-inverses98.8%
Simplified98.8%
sub-neg98.8%
distribute-rgt-in98.8%
*-un-lft-identity98.8%
distribute-neg-frac98.8%
Applied egg-rr98.8%
distribute-frac-neg98.8%
distribute-lft-neg-out98.8%
associate-/r/94.3%
unsub-neg94.3%
div-inv94.3%
clear-num96.1%
Applied egg-rr96.1%
associate-*r/86.4%
clear-num86.5%
Applied egg-rr86.5%
Taylor expanded in y around 0 63.9%
mul-1-neg63.9%
associate-/l*67.4%
distribute-neg-frac67.4%
Simplified67.4%
if -2.89999999999999989e-30 < z < 2.0500000000000001e31Initial program 78.6%
associate-*r/99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 80.5%
if 2.0500000000000001e31 < z Initial program 90.6%
Taylor expanded in y around 0 77.6%
mul-1-neg77.6%
distribute-rgt-neg-out77.6%
Simplified77.6%
Final simplification75.6%
(FPCore (x y z) :precision binary64 (* x (- 1.0 (/ z y))))
double code(double x, double y, double z) {
return x * (1.0 - (z / y));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x * (1.0d0 - (z / y))
end function
public static double code(double x, double y, double z) {
return x * (1.0 - (z / y));
}
def code(x, y, z): return x * (1.0 - (z / y))
function code(x, y, z) return Float64(x * Float64(1.0 - Float64(z / y))) end
function tmp = code(x, y, z) tmp = x * (1.0 - (z / y)); end
code[x_, y_, z_] := N[(x * N[(1.0 - N[(z / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - \frac{z}{y}\right)
\end{array}
Initial program 83.3%
associate-*r/98.0%
div-sub98.1%
*-inverses98.1%
Simplified98.1%
Final simplification98.1%
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 83.3%
associate-*r/98.0%
div-sub98.1%
*-inverses98.1%
Simplified98.1%
Taylor expanded in z around 0 53.6%
Final simplification53.6%
(FPCore (x y z) :precision binary64 (if (< z -2.060202331921739e+104) (- x (/ (* z x) y)) (if (< z 1.6939766013828526e+213) (/ x (/ y (- y z))) (* (- y z) (/ x y)))))
double code(double x, double y, double z) {
double tmp;
if (z < -2.060202331921739e+104) {
tmp = x - ((z * x) / y);
} else if (z < 1.6939766013828526e+213) {
tmp = x / (y / (y - z));
} else {
tmp = (y - z) * (x / y);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (z < (-2.060202331921739d+104)) then
tmp = x - ((z * x) / y)
else if (z < 1.6939766013828526d+213) then
tmp = x / (y / (y - z))
else
tmp = (y - z) * (x / y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z < -2.060202331921739e+104) {
tmp = x - ((z * x) / y);
} else if (z < 1.6939766013828526e+213) {
tmp = x / (y / (y - z));
} else {
tmp = (y - z) * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z < -2.060202331921739e+104: tmp = x - ((z * x) / y) elif z < 1.6939766013828526e+213: tmp = x / (y / (y - z)) else: tmp = (y - z) * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (z < -2.060202331921739e+104) tmp = Float64(x - Float64(Float64(z * x) / y)); elseif (z < 1.6939766013828526e+213) tmp = Float64(x / Float64(y / Float64(y - z))); else tmp = Float64(Float64(y - z) * Float64(x / y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z < -2.060202331921739e+104) tmp = x - ((z * x) / y); elseif (z < 1.6939766013828526e+213) tmp = x / (y / (y - z)); else tmp = (y - z) * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Less[z, -2.060202331921739e+104], N[(x - N[(N[(z * x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], If[Less[z, 1.6939766013828526e+213], N[(x / N[(y / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y - z), $MachinePrecision] * N[(x / y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z < -2.060202331921739 \cdot 10^{+104}:\\
\;\;\;\;x - \frac{z \cdot x}{y}\\
\mathbf{elif}\;z < 1.6939766013828526 \cdot 10^{+213}:\\
\;\;\;\;\frac{x}{\frac{y}{y - z}}\\
\mathbf{else}:\\
\;\;\;\;\left(y - z\right) \cdot \frac{x}{y}\\
\end{array}
\end{array}
herbie shell --seed 2023308
(FPCore (x y z)
:name "Diagrams.Backend.Cairo.Internal:setTexture from diagrams-cairo-1.3.0.3"
:precision binary64
:herbie-target
(if (< z -2.060202331921739e+104) (- x (/ (* z x) y)) (if (< z 1.6939766013828526e+213) (/ x (/ y (- y z))) (* (- y z) (/ x y))))
(/ (* x (- y z)) y))