
(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 7 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 78.4%
associate-*r/96.9%
div-sub96.9%
*-inverses96.9%
Simplified96.9%
sub-neg96.9%
distribute-rgt-in96.9%
*-un-lft-identity96.9%
distribute-neg-frac96.9%
Applied egg-rr96.9%
Final simplification96.9%
(FPCore (x y z) :precision binary64 (if (or (<= z -4.6e-15) (not (<= z 4.3e+99))) (* x (/ (- z) y)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -4.6e-15) || !(z <= 4.3e+99)) {
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 <= (-4.6d-15)) .or. (.not. (z <= 4.3d+99))) 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 <= -4.6e-15) || !(z <= 4.3e+99)) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -4.6e-15) or not (z <= 4.3e+99): tmp = x * (-z / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -4.6e-15) || !(z <= 4.3e+99)) 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 <= -4.6e-15) || ~((z <= 4.3e+99))) tmp = x * (-z / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -4.6e-15], N[Not[LessEqual[z, 4.3e+99]], $MachinePrecision]], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.6 \cdot 10^{-15} \lor \neg \left(z \leq 4.3 \cdot 10^{+99}\right):\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -4.59999999999999981e-15 or 4.3000000000000001e99 < z Initial program 86.5%
associate-*r/92.3%
div-sub92.3%
*-inverses92.3%
Simplified92.3%
Taylor expanded in z around inf 77.2%
associate-*r/77.2%
mul-1-neg77.2%
distribute-rgt-neg-out77.2%
associate-*r/75.4%
Simplified75.4%
if -4.59999999999999981e-15 < z < 4.3000000000000001e99Initial program 73.2%
associate-*r/99.8%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 77.5%
Final simplification76.7%
(FPCore (x y z) :precision binary64 (if (<= y -600000000.0) x (if (<= y 4.7e-21) (* z (/ (- x) y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -600000000.0) {
tmp = x;
} else if (y <= 4.7e-21) {
tmp = z * (-x / 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 (y <= (-600000000.0d0)) then
tmp = x
else if (y <= 4.7d-21) then
tmp = z * (-x / y)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -600000000.0) {
tmp = x;
} else if (y <= 4.7e-21) {
tmp = z * (-x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -600000000.0: tmp = x elif y <= 4.7e-21: tmp = z * (-x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -600000000.0) tmp = x; elseif (y <= 4.7e-21) tmp = Float64(z * Float64(Float64(-x) / y)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -600000000.0) tmp = x; elseif (y <= 4.7e-21) tmp = z * (-x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -600000000.0], x, If[LessEqual[y, 4.7e-21], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -600000000:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 4.7 \cdot 10^{-21}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -6e8 or 4.7000000000000003e-21 < y Initial program 71.8%
associate-*r/99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 78.4%
if -6e8 < y < 4.7000000000000003e-21Initial program 86.9%
associate-*r/93.1%
div-sub93.1%
*-inverses93.1%
Simplified93.1%
Taylor expanded in z around inf 69.7%
mul-1-neg69.7%
*-commutative69.7%
associate-*r/76.4%
distribute-lft-neg-out76.4%
Simplified76.4%
Final simplification77.5%
(FPCore (x y z) :precision binary64 (if (<= z -1.32e-14) (* z (/ (- x) y)) (if (<= z 1.35e+95) x (/ (* x (- z)) y))))
double code(double x, double y, double z) {
double tmp;
if (z <= -1.32e-14) {
tmp = z * (-x / y);
} else if (z <= 1.35e+95) {
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 <= (-1.32d-14)) then
tmp = z * (-x / y)
else if (z <= 1.35d+95) 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 <= -1.32e-14) {
tmp = z * (-x / y);
} else if (z <= 1.35e+95) {
tmp = x;
} else {
tmp = (x * -z) / y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -1.32e-14: tmp = z * (-x / y) elif z <= 1.35e+95: tmp = x else: tmp = (x * -z) / y return tmp
function code(x, y, z) tmp = 0.0 if (z <= -1.32e-14) tmp = Float64(z * Float64(Float64(-x) / y)); elseif (z <= 1.35e+95) 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 <= -1.32e-14) tmp = z * (-x / y); elseif (z <= 1.35e+95) tmp = x; else tmp = (x * -z) / y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -1.32e-14], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 1.35e+95], x, N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.32 \cdot 10^{-14}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{elif}\;z \leq 1.35 \cdot 10^{+95}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\end{array}
\end{array}
if z < -1.32e-14Initial program 84.1%
associate-*r/95.2%
div-sub95.2%
*-inverses95.2%
Simplified95.2%
Taylor expanded in z around inf 73.2%
mul-1-neg73.2%
*-commutative73.2%
associate-*r/76.5%
distribute-lft-neg-out76.5%
Simplified76.5%
if -1.32e-14 < z < 1.35e95Initial program 73.2%
associate-*r/99.8%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 77.5%
if 1.35e95 < z Initial program 90.2%
Taylor expanded in y around 0 83.1%
mul-1-neg83.1%
distribute-rgt-neg-out83.1%
Simplified83.1%
Final simplification78.1%
(FPCore (x y z) :precision binary64 (if (<= y -2e-47) x (if (<= y 1.36e-171) (* y (/ x y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -2e-47) {
tmp = x;
} else if (y <= 1.36e-171) {
tmp = y * (x / 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 (y <= (-2d-47)) then
tmp = x
else if (y <= 1.36d-171) then
tmp = y * (x / y)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -2e-47) {
tmp = x;
} else if (y <= 1.36e-171) {
tmp = y * (x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -2e-47: tmp = x elif y <= 1.36e-171: tmp = y * (x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -2e-47) tmp = x; elseif (y <= 1.36e-171) tmp = Float64(y * Float64(x / y)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -2e-47) tmp = x; elseif (y <= 1.36e-171) tmp = y * (x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -2e-47], x, If[LessEqual[y, 1.36e-171], N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2 \cdot 10^{-47}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 1.36 \cdot 10^{-171}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.9999999999999999e-47 or 1.3599999999999999e-171 < y Initial program 76.2%
associate-*r/99.4%
div-sub99.4%
*-inverses99.4%
Simplified99.4%
Taylor expanded in z around 0 70.4%
if -1.9999999999999999e-47 < y < 1.3599999999999999e-171Initial program 83.4%
Taylor expanded in y around inf 13.4%
associate-/l*18.7%
associate-/r/31.0%
Applied egg-rr31.0%
Final simplification58.7%
(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 78.4%
associate-*r/96.9%
div-sub96.9%
*-inverses96.9%
Simplified96.9%
Final simplification96.9%
(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 78.4%
associate-*r/96.9%
div-sub96.9%
*-inverses96.9%
Simplified96.9%
Taylor expanded in z around 0 55.0%
Final simplification55.0%
(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 2023336
(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))