
(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 (/ 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 84.8%
remove-double-neg84.8%
distribute-frac-neg284.8%
distribute-frac-neg84.8%
distribute-rgt-neg-in84.8%
associate-/l*98.0%
distribute-frac-neg98.0%
distribute-frac-neg298.0%
remove-double-neg98.0%
div-sub98.0%
*-inverses98.0%
Simplified98.0%
sub-neg98.0%
distribute-rgt-in98.0%
*-un-lft-identity98.0%
distribute-neg-frac298.0%
Applied egg-rr98.0%
*-commutative98.0%
add-sqr-sqrt49.1%
sqrt-unprod52.0%
sqr-neg52.0%
sqrt-unprod23.2%
add-sqr-sqrt46.8%
cancel-sign-sub-inv46.8%
associate-*r/44.4%
frac-2neg44.4%
distribute-lft-neg-out44.4%
remove-double-neg44.4%
associate-/l*46.8%
add-sqr-sqrt23.2%
sqrt-unprod52.0%
sqr-neg52.0%
sqrt-unprod49.1%
add-sqr-sqrt98.0%
Applied egg-rr98.0%
Taylor expanded in x around 0 94.1%
associate-*l/93.4%
associate-/r/98.3%
Simplified98.3%
(FPCore (x y z) :precision binary64 (if (or (<= z -5.6e+24) (not (<= z 3.1e-72))) (* x (/ z (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -5.6e+24) || !(z <= 3.1e-72)) {
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 <= (-5.6d+24)) .or. (.not. (z <= 3.1d-72))) 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 <= -5.6e+24) || !(z <= 3.1e-72)) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -5.6e+24) or not (z <= 3.1e-72): tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -5.6e+24) || !(z <= 3.1e-72)) 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 <= -5.6e+24) || ~((z <= 3.1e-72))) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -5.6e+24], N[Not[LessEqual[z, 3.1e-72]], $MachinePrecision]], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -5.6 \cdot 10^{+24} \lor \neg \left(z \leq 3.1 \cdot 10^{-72}\right):\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -5.6000000000000003e24 or 3.0999999999999998e-72 < z Initial program 89.0%
remove-double-neg89.0%
distribute-frac-neg289.0%
distribute-frac-neg89.0%
distribute-rgt-neg-in89.0%
associate-/l*96.6%
distribute-frac-neg96.6%
distribute-frac-neg296.6%
remove-double-neg96.6%
div-sub96.6%
*-inverses96.6%
Simplified96.6%
Taylor expanded in z around inf 73.4%
mul-1-neg73.4%
distribute-frac-neg273.4%
associate-*r/73.6%
Simplified73.6%
if -5.6000000000000003e24 < z < 3.0999999999999998e-72Initial program 79.3%
remove-double-neg79.3%
distribute-frac-neg279.3%
distribute-frac-neg79.3%
distribute-rgt-neg-in79.3%
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 79.4%
Final simplification76.1%
(FPCore (x y z) :precision binary64 (if (<= z -8.5e+18) (/ (* x (- z)) y) (if (<= z 3.1e-72) x (* x (/ z (- y))))))
double code(double x, double y, double z) {
double tmp;
if (z <= -8.5e+18) {
tmp = (x * -z) / y;
} else if (z <= 3.1e-72) {
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 <= (-8.5d+18)) then
tmp = (x * -z) / y
else if (z <= 3.1d-72) 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 <= -8.5e+18) {
tmp = (x * -z) / y;
} else if (z <= 3.1e-72) {
tmp = x;
} else {
tmp = x * (z / -y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -8.5e+18: tmp = (x * -z) / y elif z <= 3.1e-72: tmp = x else: tmp = x * (z / -y) return tmp
function code(x, y, z) tmp = 0.0 if (z <= -8.5e+18) tmp = Float64(Float64(x * Float64(-z)) / y); elseif (z <= 3.1e-72) tmp = x; else tmp = Float64(x * Float64(z / Float64(-y))); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -8.5e+18) tmp = (x * -z) / y; elseif (z <= 3.1e-72) tmp = x; else tmp = x * (z / -y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -8.5e+18], N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[z, 3.1e-72], x, N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -8.5 \cdot 10^{+18}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\mathbf{elif}\;z \leq 3.1 \cdot 10^{-72}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\end{array}
\end{array}
if z < -8.5e18Initial program 89.5%
remove-double-neg89.5%
distribute-frac-neg289.5%
distribute-frac-neg89.5%
distribute-rgt-neg-in89.5%
associate-/l*96.8%
distribute-frac-neg96.8%
distribute-frac-neg296.8%
remove-double-neg96.8%
div-sub96.8%
*-inverses96.8%
Simplified96.8%
Taylor expanded in z around inf 79.0%
associate-*r/79.0%
associate-*r*79.0%
mul-1-neg79.0%
Simplified79.0%
if -8.5e18 < z < 3.0999999999999998e-72Initial program 79.3%
remove-double-neg79.3%
distribute-frac-neg279.3%
distribute-frac-neg79.3%
distribute-rgt-neg-in79.3%
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 79.4%
if 3.0999999999999998e-72 < z Initial program 88.6%
remove-double-neg88.6%
distribute-frac-neg288.6%
distribute-frac-neg88.6%
distribute-rgt-neg-in88.6%
associate-/l*96.4%
distribute-frac-neg96.4%
distribute-frac-neg296.4%
remove-double-neg96.4%
div-sub96.4%
*-inverses96.4%
Simplified96.4%
Taylor expanded in z around inf 69.2%
mul-1-neg69.2%
distribute-frac-neg269.2%
associate-*r/70.9%
Simplified70.9%
Final simplification76.5%
(FPCore (x y z) :precision binary64 (if (<= y -6e+26) x (if (<= y 1.35e+63) (* z (/ (- x) y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -6e+26) {
tmp = x;
} else if (y <= 1.35e+63) {
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 <= (-6d+26)) then
tmp = x
else if (y <= 1.35d+63) 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 <= -6e+26) {
tmp = x;
} else if (y <= 1.35e+63) {
tmp = z * (-x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -6e+26: tmp = x elif y <= 1.35e+63: tmp = z * (-x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -6e+26) tmp = x; elseif (y <= 1.35e+63) 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 <= -6e+26) tmp = x; elseif (y <= 1.35e+63) tmp = z * (-x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -6e+26], x, If[LessEqual[y, 1.35e+63], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6 \cdot 10^{+26}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 1.35 \cdot 10^{+63}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -5.99999999999999994e26 or 1.35000000000000009e63 < y Initial program 71.1%
remove-double-neg71.1%
distribute-frac-neg271.1%
distribute-frac-neg71.1%
distribute-rgt-neg-in71.1%
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 79.4%
if -5.99999999999999994e26 < y < 1.35000000000000009e63Initial program 95.2%
remove-double-neg95.2%
distribute-frac-neg295.2%
distribute-frac-neg95.2%
distribute-rgt-neg-in95.2%
associate-/l*96.5%
distribute-frac-neg96.5%
distribute-frac-neg296.5%
remove-double-neg96.5%
div-sub96.5%
*-inverses96.5%
Simplified96.5%
Taylor expanded in z around inf 74.2%
mul-1-neg74.2%
distribute-frac-neg274.2%
*-commutative74.2%
associate-/l*74.2%
Simplified74.2%
Final simplification76.5%
(FPCore (x y z) :precision binary64 (if (<= x 4e+36) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 4e+36) {
tmp = x;
} else {
tmp = y * (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 (x <= 4d+36) then
tmp = x
else
tmp = y * (x / y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= 4e+36) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 4e+36: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 4e+36) tmp = x; else tmp = Float64(y * Float64(x / y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= 4e+36) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 4e+36], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 4 \cdot 10^{+36}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 4.00000000000000017e36Initial program 88.6%
remove-double-neg88.6%
distribute-frac-neg288.6%
distribute-frac-neg88.6%
distribute-rgt-neg-in88.6%
associate-/l*97.4%
distribute-frac-neg97.4%
distribute-frac-neg297.4%
remove-double-neg97.4%
div-sub97.4%
*-inverses97.4%
Simplified97.4%
Taylor expanded in z around 0 49.4%
if 4.00000000000000017e36 < x Initial program 73.0%
Taylor expanded in y around inf 24.9%
*-commutative24.9%
associate-/l*43.4%
Applied egg-rr43.4%
(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 84.8%
remove-double-neg84.8%
distribute-frac-neg284.8%
distribute-frac-neg84.8%
distribute-rgt-neg-in84.8%
associate-/l*98.0%
distribute-frac-neg98.0%
distribute-frac-neg298.0%
remove-double-neg98.0%
div-sub98.0%
*-inverses98.0%
Simplified98.0%
sub-neg98.0%
distribute-rgt-in98.0%
*-un-lft-identity98.0%
distribute-neg-frac298.0%
Applied egg-rr98.0%
*-commutative98.0%
add-sqr-sqrt49.1%
sqrt-unprod52.0%
sqr-neg52.0%
sqrt-unprod23.2%
add-sqr-sqrt46.8%
cancel-sign-sub-inv46.8%
associate-*r/44.4%
frac-2neg44.4%
distribute-lft-neg-out44.4%
remove-double-neg44.4%
associate-/l*46.8%
add-sqr-sqrt23.2%
sqrt-unprod52.0%
sqr-neg52.0%
sqrt-unprod49.1%
add-sqr-sqrt98.0%
Applied egg-rr98.0%
(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 84.8%
remove-double-neg84.8%
distribute-frac-neg284.8%
distribute-frac-neg84.8%
distribute-rgt-neg-in84.8%
associate-/l*98.0%
distribute-frac-neg98.0%
distribute-frac-neg298.0%
remove-double-neg98.0%
div-sub98.0%
*-inverses98.0%
Simplified98.0%
(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 84.8%
remove-double-neg84.8%
distribute-frac-neg284.8%
distribute-frac-neg84.8%
distribute-rgt-neg-in84.8%
associate-/l*98.0%
distribute-frac-neg98.0%
distribute-frac-neg298.0%
remove-double-neg98.0%
div-sub98.0%
*-inverses98.0%
Simplified98.0%
Taylor expanded in z around 0 48.2%
(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 2024186
(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))