
(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 5 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 (* (- y z) (/ 1.0 y))))
double code(double x, double y, double z) {
return x * ((y - z) * (1.0 / 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) * (1.0d0 / y))
end function
public static double code(double x, double y, double z) {
return x * ((y - z) * (1.0 / y));
}
def code(x, y, z): return x * ((y - z) * (1.0 / y))
function code(x, y, z) return Float64(x * Float64(Float64(y - z) * Float64(1.0 / y))) end
function tmp = code(x, y, z) tmp = x * ((y - z) * (1.0 / y)); end
code[x_, y_, z_] := N[(x * N[(N[(y - z), $MachinePrecision] * N[(1.0 / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(\left(y - z\right) \cdot \frac{1}{y}\right)
\end{array}
Initial program 83.0%
div-inv82.8%
associate-*l*97.9%
Applied egg-rr97.9%
Final simplification97.9%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.7e+133) (not (<= z 1.5e+92))) (* (/ x y) (- z)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.7e+133) || !(z <= 1.5e+92)) {
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 <= (-3.7d+133)) .or. (.not. (z <= 1.5d+92))) 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 <= -3.7e+133) || !(z <= 1.5e+92)) {
tmp = (x / y) * -z;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.7e+133) or not (z <= 1.5e+92): tmp = (x / y) * -z else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.7e+133) || !(z <= 1.5e+92)) tmp = Float64(Float64(x / y) * Float64(-z)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -3.7e+133) || ~((z <= 1.5e+92))) tmp = (x / y) * -z; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.7e+133], N[Not[LessEqual[z, 1.5e+92]], $MachinePrecision]], N[(N[(x / y), $MachinePrecision] * (-z)), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.7 \cdot 10^{+133} \lor \neg \left(z \leq 1.5 \cdot 10^{+92}\right):\\
\;\;\;\;\frac{x}{y} \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -3.70000000000000023e133 or 1.50000000000000007e92 < z Initial program 87.0%
div-inv87.0%
associate-*l*96.8%
Applied egg-rr96.8%
Taylor expanded in y around 0 82.5%
mul-1-neg82.5%
associate-*r/81.2%
distribute-rgt-neg-out81.2%
distribute-frac-neg81.2%
Simplified81.2%
if -3.70000000000000023e133 < z < 1.50000000000000007e92Initial program 81.6%
associate-*l/83.6%
distribute-rgt-out--81.9%
associate-*r/81.2%
associate-*l/95.6%
*-inverses95.6%
*-lft-identity95.6%
Simplified95.6%
Taylor expanded in z around 0 74.3%
Final simplification76.1%
(FPCore (x y z) :precision binary64 (if (or (<= z -1.7e+132) (not (<= z 5e+91))) (* x (/ (- z) y)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.7e+132) || !(z <= 5e+91)) {
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 <= (-1.7d+132)) .or. (.not. (z <= 5d+91))) 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 <= -1.7e+132) || !(z <= 5e+91)) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.7e+132) or not (z <= 5e+91): tmp = x * (-z / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.7e+132) || !(z <= 5e+91)) 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 <= -1.7e+132) || ~((z <= 5e+91))) tmp = x * (-z / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.7e+132], N[Not[LessEqual[z, 5e+91]], $MachinePrecision]], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.7 \cdot 10^{+132} \lor \neg \left(z \leq 5 \cdot 10^{+91}\right):\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -1.70000000000000013e132 or 5.0000000000000002e91 < z Initial program 87.0%
associate-*l/91.2%
distribute-rgt-out--85.1%
associate-*r/79.6%
associate-*l/94.1%
*-inverses94.1%
*-lft-identity94.1%
Simplified94.1%
Taylor expanded in z around inf 82.5%
mul-1-neg82.5%
associate-*l/84.1%
distribute-rgt-neg-in84.1%
Simplified84.1%
if -1.70000000000000013e132 < z < 5.0000000000000002e91Initial program 81.6%
associate-*l/83.6%
distribute-rgt-out--81.9%
associate-*r/81.2%
associate-*l/95.6%
*-inverses95.6%
*-lft-identity95.6%
Simplified95.6%
Taylor expanded in z around 0 74.3%
Final simplification76.8%
(FPCore (x y z) :precision binary64 (- x (* z (/ x y))))
double code(double x, double y, double z) {
return x - (z * (x / 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 - (z * (x / y))
end function
public static double code(double x, double y, double z) {
return x - (z * (x / y));
}
def code(x, y, z): return x - (z * (x / y))
function code(x, y, z) return Float64(x - Float64(z * Float64(x / y))) end
function tmp = code(x, y, z) tmp = x - (z * (x / y)); end
code[x_, y_, z_] := N[(x - N[(z * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - z \cdot \frac{x}{y}
\end{array}
Initial program 83.0%
associate-*l/85.6%
distribute-rgt-out--82.7%
associate-*r/80.8%
associate-*l/95.2%
*-inverses95.2%
*-lft-identity95.2%
Simplified95.2%
Final simplification95.2%
(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 83.0%
associate-*l/85.6%
distribute-rgt-out--82.7%
associate-*r/80.8%
associate-*l/95.2%
*-inverses95.2%
*-lft-identity95.2%
Simplified95.2%
Taylor expanded in z around 0 59.2%
Final simplification59.2%
(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 2023214
(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))