
(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 8 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 (- y z))))
double code(double x, double y, double z) {
return x / (y / (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 / (y / (y - z))
end function
public static double code(double x, double y, double z) {
return x / (y / (y - z));
}
def code(x, y, z): return x / (y / (y - z))
function code(x, y, z) return Float64(x / Float64(y / Float64(y - z))) end
function tmp = code(x, y, z) tmp = x / (y / (y - z)); end
code[x_, y_, z_] := N[(x / N[(y / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{x}{\frac{y}{y - z}}
\end{array}
Initial program 84.6%
remove-double-neg84.6%
distribute-frac-neg284.6%
distribute-frac-neg84.6%
distribute-rgt-neg-in84.6%
associate-/l*96.1%
distribute-frac-neg96.1%
distribute-frac-neg296.1%
remove-double-neg96.1%
div-sub96.1%
*-inverses96.1%
Simplified96.1%
*-inverses96.1%
div-sub96.1%
clear-num96.1%
un-div-inv96.9%
Applied egg-rr96.9%
(FPCore (x y z) :precision binary64 (if (or (<= z -150000.0) (not (<= z 3.85e+65))) (/ (* x (- z)) y) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -150000.0) || !(z <= 3.85e+65)) {
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 <= (-150000.0d0)) .or. (.not. (z <= 3.85d+65))) 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 <= -150000.0) || !(z <= 3.85e+65)) {
tmp = (x * -z) / y;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -150000.0) or not (z <= 3.85e+65): tmp = (x * -z) / y else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -150000.0) || !(z <= 3.85e+65)) 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 ((z <= -150000.0) || ~((z <= 3.85e+65))) tmp = (x * -z) / y; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -150000.0], N[Not[LessEqual[z, 3.85e+65]], $MachinePrecision]], N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -150000 \lor \neg \left(z \leq 3.85 \cdot 10^{+65}\right):\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -1.5e5 or 3.85000000000000019e65 < z Initial program 88.4%
remove-double-neg88.4%
distribute-frac-neg288.4%
distribute-frac-neg88.4%
distribute-rgt-neg-in88.4%
associate-/l*91.3%
distribute-frac-neg91.3%
distribute-frac-neg291.3%
remove-double-neg91.3%
div-sub91.3%
*-inverses91.3%
Simplified91.3%
Taylor expanded in z around inf 76.6%
associate-*r/76.6%
mul-1-neg76.6%
distribute-rgt-neg-out76.6%
Simplified76.6%
if -1.5e5 < z < 3.85000000000000019e65Initial program 81.7%
remove-double-neg81.7%
distribute-frac-neg281.7%
distribute-frac-neg81.7%
distribute-rgt-neg-in81.7%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 78.7%
Final simplification77.8%
(FPCore (x y z) :precision binary64 (if (or (<= z -105000.0) (not (<= z 8.5e+70))) (/ x (/ (- y) z)) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -105000.0) || !(z <= 8.5e+70)) {
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 <= (-105000.0d0)) .or. (.not. (z <= 8.5d+70))) 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 <= -105000.0) || !(z <= 8.5e+70)) {
tmp = x / (-y / z);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -105000.0) or not (z <= 8.5e+70): tmp = x / (-y / z) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -105000.0) || !(z <= 8.5e+70)) tmp = Float64(x / Float64(Float64(-y) / z)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -105000.0) || ~((z <= 8.5e+70))) tmp = x / (-y / z); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -105000.0], N[Not[LessEqual[z, 8.5e+70]], $MachinePrecision]], N[(x / N[((-y) / z), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -105000 \lor \neg \left(z \leq 8.5 \cdot 10^{+70}\right):\\
\;\;\;\;\frac{x}{\frac{-y}{z}}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -105000 or 8.4999999999999996e70 < z Initial program 88.4%
remove-double-neg88.4%
distribute-frac-neg288.4%
distribute-frac-neg88.4%
distribute-rgt-neg-in88.4%
associate-/l*91.3%
distribute-frac-neg91.3%
distribute-frac-neg291.3%
remove-double-neg91.3%
div-sub91.3%
*-inverses91.3%
Simplified91.3%
*-inverses91.3%
div-sub91.3%
clear-num91.2%
un-div-inv92.9%
Applied egg-rr92.9%
Taylor expanded in y around 0 74.1%
associate-*r/74.1%
mul-1-neg74.1%
Simplified74.1%
if -105000 < z < 8.4999999999999996e70Initial program 81.7%
remove-double-neg81.7%
distribute-frac-neg281.7%
distribute-frac-neg81.7%
distribute-rgt-neg-in81.7%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 78.7%
Final simplification76.7%
(FPCore (x y z) :precision binary64 (if (or (<= z -90000.0) (not (<= z 7.8e+70))) (* x (/ z (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -90000.0) || !(z <= 7.8e+70)) {
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 <= (-90000.0d0)) .or. (.not. (z <= 7.8d+70))) 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 <= -90000.0) || !(z <= 7.8e+70)) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -90000.0) or not (z <= 7.8e+70): tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -90000.0) || !(z <= 7.8e+70)) tmp = Float64(x * Float64(z / Float64(-y))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -90000.0) || ~((z <= 7.8e+70))) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -90000.0], N[Not[LessEqual[z, 7.8e+70]], $MachinePrecision]], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -90000 \lor \neg \left(z \leq 7.8 \cdot 10^{+70}\right):\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -9e4 or 7.79999999999999949e70 < z Initial program 88.4%
associate-/l*91.3%
Simplified91.3%
Taylor expanded in y around 0 72.4%
neg-mul-172.4%
Simplified72.4%
if -9e4 < z < 7.79999999999999949e70Initial program 81.7%
remove-double-neg81.7%
distribute-frac-neg281.7%
distribute-frac-neg81.7%
distribute-rgt-neg-in81.7%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 78.7%
Final simplification76.0%
(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 84.6%
remove-double-neg84.6%
distribute-frac-neg284.6%
distribute-frac-neg84.6%
distribute-rgt-neg-in84.6%
associate-/l*96.1%
distribute-frac-neg96.1%
distribute-frac-neg296.1%
remove-double-neg96.1%
div-sub96.1%
*-inverses96.1%
Simplified96.1%
sub-neg96.1%
distribute-rgt-in96.2%
*-un-lft-identity96.2%
distribute-neg-frac296.2%
Applied egg-rr96.2%
add-sqr-sqrt51.5%
sqrt-unprod66.4%
sqr-neg66.4%
sqrt-unprod22.2%
add-sqr-sqrt51.5%
cancel-sign-sub51.5%
distribute-frac-neg251.5%
*-commutative51.5%
add-sqr-sqrt29.3%
sqrt-unprod66.9%
sqr-neg66.9%
sqrt-unprod44.5%
add-sqr-sqrt96.2%
Applied egg-rr96.2%
(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 84.6%
associate-/l*96.1%
Simplified96.1%
(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 84.6%
remove-double-neg84.6%
distribute-frac-neg284.6%
distribute-frac-neg84.6%
distribute-rgt-neg-in84.6%
associate-/l*96.1%
distribute-frac-neg96.1%
distribute-frac-neg296.1%
remove-double-neg96.1%
div-sub96.1%
*-inverses96.1%
Simplified96.1%
(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 84.6%
remove-double-neg84.6%
distribute-frac-neg284.6%
distribute-frac-neg84.6%
distribute-rgt-neg-in84.6%
associate-/l*96.1%
distribute-frac-neg96.1%
distribute-frac-neg296.1%
remove-double-neg96.1%
div-sub96.1%
*-inverses96.1%
Simplified96.1%
Taylor expanded in z around 0 53.0%
(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 2024177
(FPCore (x y z)
:name "Diagrams.Backend.Cairo.Internal:setTexture from diagrams-cairo-1.3.0.3"
:precision binary64
:alt
(! :herbie-platform default (if (< z -206020233192173900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- x (/ (* z x) y)) (if (< z 1693976601382852600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ x (/ y (- y z))) (* (- y z) (/ x y)))))
(/ (* x (- y z)) y))