
(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 (/ 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 85.9%
add-cube-cbrt84.5%
pow384.5%
associate-/l*95.2%
Applied egg-rr95.2%
rem-cube-cbrt96.9%
clear-num96.8%
un-div-inv97.1%
Applied egg-rr97.1%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.5e-46) (not (<= z 9.6e-17))) (* z (/ x (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.5e-46) || !(z <= 9.6e-17)) {
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 ((z <= (-3.5d-46)) .or. (.not. (z <= 9.6d-17))) 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 ((z <= -3.5e-46) || !(z <= 9.6e-17)) {
tmp = z * (x / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.5e-46) or not (z <= 9.6e-17): tmp = z * (x / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.5e-46) || !(z <= 9.6e-17)) 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 ((z <= -3.5e-46) || ~((z <= 9.6e-17))) tmp = z * (x / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.5e-46], N[Not[LessEqual[z, 9.6e-17]], $MachinePrecision]], N[(z * N[(x / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.5 \cdot 10^{-46} \lor \neg \left(z \leq 9.6 \cdot 10^{-17}\right):\\
\;\;\;\;z \cdot \frac{x}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -3.5000000000000002e-46 or 9.59999999999999945e-17 < z Initial program 88.1%
remove-double-neg88.1%
distribute-frac-neg288.1%
distribute-frac-neg88.1%
distribute-rgt-neg-in88.1%
associate-/l*94.1%
distribute-frac-neg94.1%
distribute-frac-neg294.1%
remove-double-neg94.1%
div-sub94.1%
*-inverses94.1%
Simplified94.1%
Taylor expanded in z around inf 72.8%
mul-1-neg72.8%
distribute-frac-neg272.8%
*-commutative72.8%
associate-/l*74.5%
Simplified74.5%
if -3.5000000000000002e-46 < z < 9.59999999999999945e-17Initial program 83.6%
remove-double-neg83.6%
distribute-frac-neg283.6%
distribute-frac-neg83.6%
distribute-rgt-neg-in83.6%
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 78.1%
Final simplification76.2%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.8e-46) (not (<= z 6.5e-118))) (* x (/ z (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.8e-46) || !(z <= 6.5e-118)) {
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 <= (-3.8d-46)) .or. (.not. (z <= 6.5d-118))) 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 <= -3.8e-46) || !(z <= 6.5e-118)) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.8e-46) or not (z <= 6.5e-118): tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.8e-46) || !(z <= 6.5e-118)) 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 <= -3.8e-46) || ~((z <= 6.5e-118))) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.8e-46], N[Not[LessEqual[z, 6.5e-118]], $MachinePrecision]], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.8 \cdot 10^{-46} \lor \neg \left(z \leq 6.5 \cdot 10^{-118}\right):\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -3.7999999999999997e-46 or 6.49999999999999958e-118 < z Initial program 88.6%
remove-double-neg88.6%
distribute-frac-neg288.6%
distribute-frac-neg88.6%
distribute-rgt-neg-in88.6%
associate-/l*94.8%
distribute-frac-neg94.8%
distribute-frac-neg294.8%
remove-double-neg94.8%
div-sub94.8%
*-inverses94.8%
Simplified94.8%
Taylor expanded in z around inf 70.2%
mul-1-neg70.2%
distribute-frac-neg270.2%
associate-*r/67.6%
Simplified67.6%
if -3.7999999999999997e-46 < z < 6.49999999999999958e-118Initial program 82.0%
remove-double-neg82.0%
distribute-frac-neg282.0%
distribute-frac-neg82.0%
distribute-rgt-neg-in82.0%
associate-/l*100.0%
distribute-frac-neg100.0%
distribute-frac-neg2100.0%
remove-double-neg100.0%
div-sub100.0%
*-inverses100.0%
Simplified100.0%
Taylor expanded in z around 0 83.3%
Final simplification74.1%
(FPCore (x y z) :precision binary64 (if (<= x 2.5e+241) x (/ y (/ y x))))
double code(double x, double y, double z) {
double tmp;
if (x <= 2.5e+241) {
tmp = x;
} else {
tmp = y / (y / 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 (x <= 2.5d+241) then
tmp = x
else
tmp = y / (y / x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= 2.5e+241) {
tmp = x;
} else {
tmp = y / (y / x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 2.5e+241: tmp = x else: tmp = y / (y / x) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 2.5e+241) tmp = x; else tmp = Float64(y / Float64(y / x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= 2.5e+241) tmp = x; else tmp = y / (y / x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 2.5e+241], x, N[(y / N[(y / x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 2.5 \cdot 10^{+241}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{y}{\frac{y}{x}}\\
\end{array}
\end{array}
if x < 2.50000000000000013e241Initial program 87.9%
remove-double-neg87.9%
distribute-frac-neg287.9%
distribute-frac-neg87.9%
distribute-rgt-neg-in87.9%
associate-/l*96.7%
distribute-frac-neg96.7%
distribute-frac-neg296.7%
remove-double-neg96.7%
div-sub96.7%
*-inverses96.7%
Simplified96.7%
Taylor expanded in z around 0 51.8%
if 2.50000000000000013e241 < x Initial program 61.2%
Taylor expanded in y around inf 25.9%
*-commutative25.9%
associate-/l*65.2%
Applied egg-rr65.2%
clear-num65.2%
un-div-inv65.3%
Applied egg-rr65.3%
(FPCore (x y z) :precision binary64 (if (<= x 6.9e+242) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 6.9e+242) {
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 <= 6.9d+242) 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 <= 6.9e+242) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 6.9e+242: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 6.9e+242) 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 <= 6.9e+242) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 6.9e+242], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 6.9 \cdot 10^{+242}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 6.90000000000000017e242Initial program 87.9%
remove-double-neg87.9%
distribute-frac-neg287.9%
distribute-frac-neg87.9%
distribute-rgt-neg-in87.9%
associate-/l*96.7%
distribute-frac-neg96.7%
distribute-frac-neg296.7%
remove-double-neg96.7%
div-sub96.7%
*-inverses96.7%
Simplified96.7%
Taylor expanded in z around 0 51.8%
if 6.90000000000000017e242 < x Initial program 61.2%
Taylor expanded in y around inf 25.9%
*-commutative25.9%
associate-/l*65.2%
Applied egg-rr65.2%
(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 85.9%
remove-double-neg85.9%
distribute-frac-neg285.9%
distribute-frac-neg85.9%
distribute-rgt-neg-in85.9%
associate-/l*96.9%
distribute-frac-neg96.9%
distribute-frac-neg296.9%
remove-double-neg96.9%
div-sub96.9%
*-inverses96.9%
Simplified96.9%
(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 85.9%
remove-double-neg85.9%
distribute-frac-neg285.9%
distribute-frac-neg85.9%
distribute-rgt-neg-in85.9%
associate-/l*96.9%
distribute-frac-neg96.9%
distribute-frac-neg296.9%
remove-double-neg96.9%
div-sub96.9%
*-inverses96.9%
Simplified96.9%
Taylor expanded in z around 0 52.1%
(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 2024170
(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))