
(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 (/ y z))))
double code(double x, double y, double z) {
return x - (x / (y / z));
}
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 / (y / z))
end function
public static double code(double x, double y, double z) {
return x - (x / (y / z));
}
def code(x, y, z): return x - (x / (y / z))
function code(x, y, z) return Float64(x - Float64(x / Float64(y / z))) end
function tmp = code(x, y, z) tmp = x - (x / (y / z)); end
code[x_, y_, z_] := N[(x - N[(x / N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{x}{\frac{y}{z}}
\end{array}
Initial program 86.5%
--rgt-identity86.5%
associate-*l/81.8%
sub-neg81.8%
distribute-rgt-in77.4%
*-commutative77.4%
distribute-lft-neg-out77.4%
unsub-neg77.4%
associate--r+77.4%
associate-*l/81.8%
associate-/l*93.0%
*-inverses93.0%
/-rgt-identity93.0%
+-rgt-identity93.0%
*-commutative93.0%
associate-/r/96.9%
Simplified96.9%
Final simplification96.9%
(FPCore (x y z) :precision binary64 (if (<= y -1.9e+61) x (if (<= y 2.9e-32) (- (* x (/ z y))) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.9e+61) {
tmp = x;
} else if (y <= 2.9e-32) {
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 (y <= (-1.9d+61)) then
tmp = x
else if (y <= 2.9d-32) 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 (y <= -1.9e+61) {
tmp = x;
} else if (y <= 2.9e-32) {
tmp = -(x * (z / y));
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.9e+61: tmp = x elif y <= 2.9e-32: tmp = -(x * (z / y)) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.9e+61) tmp = x; elseif (y <= 2.9e-32) tmp = Float64(-Float64(x * Float64(z / y))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -1.9e+61) tmp = x; elseif (y <= 2.9e-32) tmp = -(x * (z / y)); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.9e+61], x, If[LessEqual[y, 2.9e-32], (-N[(x * N[(z / y), $MachinePrecision]), $MachinePrecision]), x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.9 \cdot 10^{+61}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 2.9 \cdot 10^{-32}:\\
\;\;\;\;-x \cdot \frac{z}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.89999999999999998e61 or 2.89999999999999996e-32 < y Initial program 79.3%
associate-*r/99.9%
Simplified99.9%
Taylor expanded in y around inf 82.0%
if -1.89999999999999998e61 < y < 2.89999999999999996e-32Initial program 92.7%
associate-*r/93.6%
Simplified93.6%
Taylor expanded in y around 0 69.0%
neg-mul-169.0%
distribute-neg-frac69.0%
Simplified69.0%
Final simplification75.0%
(FPCore (x y z) :precision binary64 (if (<= y -1.85e+61) x (if (<= y 1e-29) (* z (/ (- x) y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.85e+61) {
tmp = x;
} else if (y <= 1e-29) {
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 <= (-1.85d+61)) then
tmp = x
else if (y <= 1d-29) 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 <= -1.85e+61) {
tmp = x;
} else if (y <= 1e-29) {
tmp = z * (-x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.85e+61: tmp = x elif y <= 1e-29: tmp = z * (-x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.85e+61) tmp = x; elseif (y <= 1e-29) 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 <= -1.85e+61) tmp = x; elseif (y <= 1e-29) tmp = z * (-x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.85e+61], x, If[LessEqual[y, 1e-29], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.85 \cdot 10^{+61}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 10^{-29}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.85000000000000001e61 or 9.99999999999999943e-30 < y Initial program 79.3%
associate-*r/99.9%
Simplified99.9%
Taylor expanded in y around inf 82.0%
if -1.85000000000000001e61 < y < 9.99999999999999943e-30Initial program 92.7%
associate-*r/93.6%
Simplified93.6%
Taylor expanded in y around 0 72.6%
mul-1-neg72.6%
associate-*l/71.8%
distribute-lft-neg-in71.8%
*-commutative71.8%
distribute-neg-frac71.8%
Simplified71.8%
Final simplification76.6%
(FPCore (x y z) :precision binary64 (if (<= y -2e+61) x (if (<= y 2.95e-31) (/ (* x (- z)) y) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -2e+61) {
tmp = x;
} else if (y <= 2.95e-31) {
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 (y <= (-2d+61)) then
tmp = x
else if (y <= 2.95d-31) 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 (y <= -2e+61) {
tmp = x;
} else if (y <= 2.95e-31) {
tmp = (x * -z) / y;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -2e+61: tmp = x elif y <= 2.95e-31: tmp = (x * -z) / y else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -2e+61) tmp = x; elseif (y <= 2.95e-31) tmp = Float64(Float64(x * Float64(-z)) / y); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -2e+61) tmp = x; elseif (y <= 2.95e-31) tmp = (x * -z) / y; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -2e+61], x, If[LessEqual[y, 2.95e-31], N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2 \cdot 10^{+61}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 2.95 \cdot 10^{-31}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.9999999999999999e61 or 2.95000000000000016e-31 < y Initial program 79.3%
associate-*r/99.9%
Simplified99.9%
Taylor expanded in y around inf 82.0%
if -1.9999999999999999e61 < y < 2.95000000000000016e-31Initial program 92.7%
associate-*r/93.6%
Simplified93.6%
Taylor expanded in y around 0 72.6%
associate-*r/72.6%
mul-1-neg72.6%
distribute-rgt-neg-out72.6%
Simplified72.6%
Final simplification77.0%
(FPCore (x y z) :precision binary64 (if (<= y -8e-97) x (if (<= y 3.05e-151) (* y (/ x y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -8e-97) {
tmp = x;
} else if (y <= 3.05e-151) {
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 <= (-8d-97)) then
tmp = x
else if (y <= 3.05d-151) 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 <= -8e-97) {
tmp = x;
} else if (y <= 3.05e-151) {
tmp = y * (x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -8e-97: tmp = x elif y <= 3.05e-151: tmp = y * (x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -8e-97) tmp = x; elseif (y <= 3.05e-151) 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 <= -8e-97) tmp = x; elseif (y <= 3.05e-151) tmp = y * (x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -8e-97], x, If[LessEqual[y, 3.05e-151], N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -8 \cdot 10^{-97}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 3.05 \cdot 10^{-151}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -8.00000000000000029e-97 or 3.05e-151 < y Initial program 85.6%
associate-*r/98.8%
Simplified98.8%
Taylor expanded in y around inf 66.3%
if -8.00000000000000029e-97 < y < 3.05e-151Initial program 88.7%
Taylor expanded in y around inf 12.1%
associate-/l*18.1%
associate-/r/29.6%
Applied egg-rr29.6%
Final simplification55.7%
(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(x * Float64(Float64(y - z) / y)) end
function tmp = code(x, y, z) tmp = x * ((y - z) / y); end
code[x_, y_, z_] := N[(x * N[(N[(y - z), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \frac{y - z}{y}
\end{array}
Initial program 86.5%
associate-*r/96.5%
Simplified96.5%
Final simplification96.5%
(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 86.5%
associate-*r/96.5%
Simplified96.5%
Taylor expanded in y around inf 52.4%
Final simplification52.4%
(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 2023271
(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))