
(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 (* 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 83.2%
remove-double-neg83.2%
distribute-frac-neg283.2%
distribute-frac-neg83.2%
distribute-rgt-neg-in83.2%
associate-/l*97.7%
distribute-frac-neg97.7%
distribute-frac-neg297.7%
remove-double-neg97.7%
div-sub97.7%
*-inverses97.7%
Simplified97.7%
sub-neg97.7%
distribute-rgt-in97.7%
*-un-lft-identity97.7%
distribute-neg-frac297.7%
Applied egg-rr97.7%
*-commutative97.7%
add-sqr-sqrt45.6%
sqrt-unprod59.8%
sqr-neg59.8%
sqrt-unprod29.1%
add-sqr-sqrt51.7%
cancel-sign-sub-inv51.7%
distribute-frac-neg251.7%
distribute-rgt-neg-out51.7%
distribute-lft-neg-out51.7%
add-sqr-sqrt29.1%
sqrt-unprod59.8%
sqr-neg59.8%
sqrt-unprod45.6%
add-sqr-sqrt97.7%
Applied egg-rr97.7%
(FPCore (x y z) :precision binary64 (if (<= y -0.00082) x (if (<= y 2.2e+55) (* z (/ x (- y))) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -0.00082) {
tmp = x;
} else if (y <= 2.2e+55) {
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 <= (-0.00082d0)) then
tmp = x
else if (y <= 2.2d+55) 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 <= -0.00082) {
tmp = x;
} else if (y <= 2.2e+55) {
tmp = z * (x / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -0.00082: tmp = x elif y <= 2.2e+55: tmp = z * (x / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -0.00082) tmp = x; elseif (y <= 2.2e+55) tmp = Float64(z * Float64(x / Float64(-y))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -0.00082) tmp = x; elseif (y <= 2.2e+55) tmp = z * (x / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -0.00082], x, If[LessEqual[y, 2.2e+55], N[(z * N[(x / (-y)), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -0.00082:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 2.2 \cdot 10^{+55}:\\
\;\;\;\;z \cdot \frac{x}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -8.1999999999999998e-4 or 2.2000000000000001e55 < y Initial program 75.3%
remove-double-neg75.3%
distribute-frac-neg275.3%
distribute-frac-neg75.3%
distribute-rgt-neg-in75.3%
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 82.5%
if -8.1999999999999998e-4 < y < 2.2000000000000001e55Initial program 90.9%
remove-double-neg90.9%
distribute-frac-neg290.9%
distribute-frac-neg90.9%
distribute-rgt-neg-in90.9%
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 73.5%
mul-1-neg73.5%
distribute-frac-neg273.5%
*-commutative73.5%
associate-/l*74.6%
Simplified74.6%
(FPCore (x y z) :precision binary64 (if (<= y -2.65e-5) x (if (<= y 2.15e+55) (* x (/ z (- y))) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -2.65e-5) {
tmp = x;
} else if (y <= 2.15e+55) {
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 <= (-2.65d-5)) then
tmp = x
else if (y <= 2.15d+55) 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 <= -2.65e-5) {
tmp = x;
} else if (y <= 2.15e+55) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -2.65e-5: tmp = x elif y <= 2.15e+55: tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -2.65e-5) tmp = x; elseif (y <= 2.15e+55) 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 (y <= -2.65e-5) tmp = x; elseif (y <= 2.15e+55) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -2.65e-5], x, If[LessEqual[y, 2.15e+55], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.65 \cdot 10^{-5}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 2.15 \cdot 10^{+55}:\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -2.65e-5 or 2.1499999999999999e55 < y Initial program 75.3%
remove-double-neg75.3%
distribute-frac-neg275.3%
distribute-frac-neg75.3%
distribute-rgt-neg-in75.3%
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 82.5%
if -2.65e-5 < y < 2.1499999999999999e55Initial program 90.9%
remove-double-neg90.9%
distribute-frac-neg290.9%
distribute-frac-neg90.9%
distribute-rgt-neg-in90.9%
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 73.5%
mul-1-neg73.5%
distribute-frac-neg273.5%
associate-*r/73.2%
Simplified73.2%
(FPCore (x y z) :precision binary64 (if (<= x 5e+23) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 5e+23) {
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+23) 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+23) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 5e+23: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 5e+23) 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+23) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 5e+23], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 5 \cdot 10^{+23}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 4.9999999999999999e23Initial program 85.8%
remove-double-neg85.8%
distribute-frac-neg285.8%
distribute-frac-neg85.8%
distribute-rgt-neg-in85.8%
associate-/l*97.1%
distribute-frac-neg97.1%
distribute-frac-neg297.1%
remove-double-neg97.1%
div-sub97.1%
*-inverses97.1%
Simplified97.1%
Taylor expanded in z around 0 55.9%
if 4.9999999999999999e23 < x Initial program 73.5%
Taylor expanded in y around inf 16.5%
*-commutative16.5%
associate-/l*50.1%
Applied egg-rr50.1%
(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 83.2%
remove-double-neg83.2%
distribute-frac-neg283.2%
distribute-frac-neg83.2%
distribute-rgt-neg-in83.2%
associate-/l*97.7%
distribute-frac-neg97.7%
distribute-frac-neg297.7%
remove-double-neg97.7%
div-sub97.7%
*-inverses97.7%
Simplified97.7%
(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 83.2%
remove-double-neg83.2%
distribute-frac-neg283.2%
distribute-frac-neg83.2%
distribute-rgt-neg-in83.2%
associate-/l*97.7%
distribute-frac-neg97.7%
distribute-frac-neg297.7%
remove-double-neg97.7%
div-sub97.7%
*-inverses97.7%
Simplified97.7%
Taylor expanded in z around 0 52.9%
(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 2024146
(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))