
(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 6 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 (- 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 83.4%
remove-double-neg83.4%
distribute-frac-neg283.4%
distribute-frac-neg83.4%
distribute-rgt-neg-in83.4%
associate-/l*98.4%
distribute-frac-neg98.4%
distribute-frac-neg298.4%
remove-double-neg98.4%
div-sub98.4%
*-inverses98.4%
Simplified98.4%
(FPCore (x y z) :precision binary64 (if (or (<= z -4.6e+76) (not (<= z 1.75e-67))) (* x (/ z (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -4.6e+76) || !(z <= 1.75e-67)) {
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+76)) .or. (.not. (z <= 1.75d-67))) 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+76) || !(z <= 1.75e-67)) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -4.6e+76) or not (z <= 1.75e-67): tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -4.6e+76) || !(z <= 1.75e-67)) 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 <= -4.6e+76) || ~((z <= 1.75e-67))) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -4.6e+76], N[Not[LessEqual[z, 1.75e-67]], $MachinePrecision]], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.6 \cdot 10^{+76} \lor \neg \left(z \leq 1.75 \cdot 10^{-67}\right):\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -4.60000000000000002e76 or 1.75e-67 < z Initial program 88.4%
remove-double-neg88.4%
distribute-frac-neg288.4%
distribute-frac-neg88.4%
distribute-rgt-neg-in88.4%
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 70.8%
mul-1-neg70.8%
distribute-frac-neg270.8%
associate-*r/70.7%
Simplified70.7%
if -4.60000000000000002e76 < z < 1.75e-67Initial program 78.7%
remove-double-neg78.7%
distribute-frac-neg278.7%
distribute-frac-neg78.7%
distribute-rgt-neg-in78.7%
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 78.9%
Final simplification74.9%
(FPCore (x y z) :precision binary64 (if (<= z -4.8e+76) (/ (* z (- x)) y) (if (<= z 1.75e-67) x (/ x (/ y (- z))))))
double code(double x, double y, double z) {
double tmp;
if (z <= -4.8e+76) {
tmp = (z * -x) / y;
} else if (z <= 1.75e-67) {
tmp = x;
} else {
tmp = x / (y / -z);
}
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 <= (-4.8d+76)) then
tmp = (z * -x) / y
else if (z <= 1.75d-67) then
tmp = x
else
tmp = x / (y / -z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -4.8e+76) {
tmp = (z * -x) / y;
} else if (z <= 1.75e-67) {
tmp = x;
} else {
tmp = x / (y / -z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -4.8e+76: tmp = (z * -x) / y elif z <= 1.75e-67: tmp = x else: tmp = x / (y / -z) return tmp
function code(x, y, z) tmp = 0.0 if (z <= -4.8e+76) tmp = Float64(Float64(z * Float64(-x)) / y); elseif (z <= 1.75e-67) tmp = x; else tmp = Float64(x / Float64(y / Float64(-z))); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -4.8e+76) tmp = (z * -x) / y; elseif (z <= 1.75e-67) tmp = x; else tmp = x / (y / -z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -4.8e+76], N[(N[(z * (-x)), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[z, 1.75e-67], x, N[(x / N[(y / (-z)), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.8 \cdot 10^{+76}:\\
\;\;\;\;\frac{z \cdot \left(-x\right)}{y}\\
\mathbf{elif}\;z \leq 1.75 \cdot 10^{-67}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{x}{\frac{y}{-z}}\\
\end{array}
\end{array}
if z < -4.8e76Initial program 91.7%
remove-double-neg91.7%
distribute-frac-neg291.7%
distribute-frac-neg91.7%
distribute-rgt-neg-in91.7%
associate-/l*94.4%
distribute-frac-neg94.4%
distribute-frac-neg294.4%
remove-double-neg94.4%
div-sub94.4%
*-inverses94.4%
Simplified94.4%
Taylor expanded in z around inf 83.7%
associate-*r/83.7%
associate-*r*83.7%
mul-1-neg83.7%
Simplified83.7%
if -4.8e76 < z < 1.75e-67Initial program 78.7%
remove-double-neg78.7%
distribute-frac-neg278.7%
distribute-frac-neg78.7%
distribute-rgt-neg-in78.7%
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 78.9%
if 1.75e-67 < z Initial program 87.1%
clear-num87.0%
inv-pow87.0%
Applied egg-rr87.0%
clear-num87.1%
inv-pow87.1%
associate-/l*97.7%
Applied egg-rr97.7%
unpow-197.7%
associate-/r*97.6%
div-sub97.6%
*-inverses97.6%
Simplified97.6%
unpow-197.6%
div-inv97.5%
associate-/r*97.6%
clear-num97.7%
/-rgt-identity97.7%
frac-2neg97.7%
metadata-eval97.7%
sub-neg97.7%
distribute-neg-in97.7%
metadata-eval97.7%
distribute-neg-frac297.7%
distribute-frac-neg97.7%
frac-2neg97.7%
Applied egg-rr97.7%
Taylor expanded in z around inf 67.1%
associate-*r/67.1%
neg-mul-167.1%
Simplified67.1%
Final simplification75.5%
(FPCore (x y z) :precision binary64 (if (<= y -8.5e-76) x (if (<= y 8.4e-77) (* z (/ (- x) y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -8.5e-76) {
tmp = x;
} else if (y <= 8.4e-77) {
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 <= (-8.5d-76)) then
tmp = x
else if (y <= 8.4d-77) 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 <= -8.5e-76) {
tmp = x;
} else if (y <= 8.4e-77) {
tmp = z * (-x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -8.5e-76: tmp = x elif y <= 8.4e-77: tmp = z * (-x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -8.5e-76) tmp = x; elseif (y <= 8.4e-77) 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 <= -8.5e-76) tmp = x; elseif (y <= 8.4e-77) tmp = z * (-x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -8.5e-76], x, If[LessEqual[y, 8.4e-77], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.5 \cdot 10^{-76}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 8.4 \cdot 10^{-77}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -8.50000000000000038e-76 or 8.40000000000000061e-77 < y Initial program 79.5%
remove-double-neg79.5%
distribute-frac-neg279.5%
distribute-frac-neg79.5%
distribute-rgt-neg-in79.5%
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 72.9%
if -8.50000000000000038e-76 < y < 8.40000000000000061e-77Initial program 91.0%
remove-double-neg91.0%
distribute-frac-neg291.0%
distribute-frac-neg91.0%
distribute-rgt-neg-in91.0%
associate-/l*95.5%
distribute-frac-neg95.5%
distribute-frac-neg295.5%
remove-double-neg95.5%
div-sub95.5%
*-inverses95.5%
Simplified95.5%
Taylor expanded in z around inf 79.1%
mul-1-neg79.1%
distribute-frac-neg279.1%
*-commutative79.1%
associate-/l*80.6%
Simplified80.6%
Final simplification75.5%
(FPCore (x y z) :precision binary64 (if (<= x 5e+56) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 5e+56) {
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 <= 5d+56) 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 <= 5e+56) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 5e+56: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 5e+56) 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 <= 5e+56) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 5e+56], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 5 \cdot 10^{+56}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 5.00000000000000024e56Initial program 87.2%
remove-double-neg87.2%
distribute-frac-neg287.2%
distribute-frac-neg87.2%
distribute-rgt-neg-in87.2%
associate-/l*98.1%
distribute-frac-neg98.1%
distribute-frac-neg298.1%
remove-double-neg98.1%
div-sub98.1%
*-inverses98.1%
Simplified98.1%
Taylor expanded in z around 0 54.2%
if 5.00000000000000024e56 < x Initial program 66.4%
Taylor expanded in y around inf 23.4%
*-commutative23.4%
associate-/l*58.9%
Applied egg-rr58.9%
(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 83.4%
remove-double-neg83.4%
distribute-frac-neg283.4%
distribute-frac-neg83.4%
distribute-rgt-neg-in83.4%
associate-/l*98.4%
distribute-frac-neg98.4%
distribute-frac-neg298.4%
remove-double-neg98.4%
div-sub98.4%
*-inverses98.4%
Simplified98.4%
Taylor expanded in z around 0 54.7%
(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 2024180
(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))