
(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 80.6%
associate-/l*95.4%
add-cube-cbrt93.9%
associate-*l*93.9%
pow293.9%
Applied egg-rr93.9%
associate-*r*93.9%
unpow293.9%
add-cube-cbrt95.4%
clear-num95.4%
un-div-inv96.7%
Applied egg-rr96.7%
(FPCore (x y z) :precision binary64 (if (<= y -1.85e+45) x (if (<= y 3.05e-22) (* z (/ (- x) y)) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.85e+45) {
tmp = x;
} else if (y <= 3.05e-22) {
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 <= (-1.85d+45)) then
tmp = x
else if (y <= 3.05d-22) 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 <= -1.85e+45) {
tmp = x;
} else if (y <= 3.05e-22) {
tmp = z * (-x / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.85e+45: tmp = x elif y <= 3.05e-22: tmp = z * (-x / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.85e+45) tmp = x; elseif (y <= 3.05e-22) 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 <= -1.85e+45) tmp = x; elseif (y <= 3.05e-22) tmp = z * (-x / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.85e+45], x, If[LessEqual[y, 3.05e-22], N[(z * N[((-x) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.85 \cdot 10^{+45}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 3.05 \cdot 10^{-22}:\\
\;\;\;\;z \cdot \frac{-x}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.84999999999999989e45 or 3.04999999999999978e-22 < y Initial program 66.3%
remove-double-neg66.3%
distribute-frac-neg266.3%
distribute-frac-neg66.3%
distribute-rgt-neg-in66.3%
associate-/l*99.8%
distribute-frac-neg99.8%
distribute-frac-neg299.8%
remove-double-neg99.8%
div-sub99.8%
*-inverses99.8%
Simplified99.8%
Taylor expanded in z around 0 78.2%
if -1.84999999999999989e45 < y < 3.04999999999999978e-22Initial program 93.8%
remove-double-neg93.8%
distribute-frac-neg293.8%
distribute-frac-neg93.8%
distribute-rgt-neg-in93.8%
associate-/l*91.3%
distribute-frac-neg91.3%
distribute-frac-neg291.3%
remove-double-neg91.3%
div-sub91.4%
*-inverses91.4%
Simplified91.4%
Taylor expanded in z around inf 73.5%
mul-1-neg73.5%
distribute-frac-neg273.5%
*-commutative73.5%
associate-/l*75.6%
Simplified75.6%
Final simplification76.9%
(FPCore (x y z) :precision binary64 (if (<= y -1.95e+42) x (if (<= y 2.8e+99) (* x (/ z (- y))) x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -1.95e+42) {
tmp = x;
} else if (y <= 2.8e+99) {
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 <= (-1.95d+42)) then
tmp = x
else if (y <= 2.8d+99) 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 <= -1.95e+42) {
tmp = x;
} else if (y <= 2.8e+99) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -1.95e+42: tmp = x elif y <= 2.8e+99: tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -1.95e+42) tmp = x; elseif (y <= 2.8e+99) 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 <= -1.95e+42) tmp = x; elseif (y <= 2.8e+99) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -1.95e+42], x, If[LessEqual[y, 2.8e+99], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.95 \cdot 10^{+42}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 2.8 \cdot 10^{+99}:\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -1.94999999999999985e42 or 2.8e99 < y Initial program 59.8%
remove-double-neg59.8%
distribute-frac-neg259.8%
distribute-frac-neg59.8%
distribute-rgt-neg-in59.8%
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 84.9%
if -1.94999999999999985e42 < y < 2.8e99Initial program 94.0%
remove-double-neg94.0%
distribute-frac-neg294.0%
distribute-frac-neg94.0%
distribute-rgt-neg-in94.0%
associate-/l*92.5%
distribute-frac-neg92.5%
distribute-frac-neg292.5%
remove-double-neg92.5%
div-sub92.5%
*-inverses92.5%
Simplified92.5%
Taylor expanded in z around inf 70.6%
mul-1-neg70.6%
distribute-frac-neg270.6%
associate-*r/67.2%
Simplified67.2%
(FPCore (x y z) :precision binary64 (if (<= x 2.5e+71) x (/ y (/ y x))))
double code(double x, double y, double z) {
double tmp;
if (x <= 2.5e+71) {
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+71) 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+71) {
tmp = x;
} else {
tmp = y / (y / x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 2.5e+71: tmp = x else: tmp = y / (y / x) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 2.5e+71) 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+71) tmp = x; else tmp = y / (y / x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 2.5e+71], x, N[(y / N[(y / x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 2.5 \cdot 10^{+71}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{y}{\frac{y}{x}}\\
\end{array}
\end{array}
if x < 2.49999999999999986e71Initial program 85.0%
remove-double-neg85.0%
distribute-frac-neg285.0%
distribute-frac-neg85.0%
distribute-rgt-neg-in85.0%
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 0 47.1%
if 2.49999999999999986e71 < x Initial program 61.7%
Taylor expanded in y around inf 28.8%
*-commutative28.8%
associate-/l*60.9%
Applied egg-rr60.9%
clear-num60.8%
un-div-inv60.9%
Applied egg-rr60.9%
(FPCore (x y z) :precision binary64 (if (<= x 1.5e+70) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 1.5e+70) {
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 <= 1.5d+70) 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 <= 1.5e+70) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 1.5e+70: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 1.5e+70) 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 <= 1.5e+70) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 1.5e+70], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 1.5 \cdot 10^{+70}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 1.49999999999999988e70Initial program 85.3%
remove-double-neg85.3%
distribute-frac-neg285.3%
distribute-frac-neg85.3%
distribute-rgt-neg-in85.3%
associate-/l*94.3%
distribute-frac-neg94.3%
distribute-frac-neg294.3%
remove-double-neg94.3%
div-sub94.3%
*-inverses94.3%
Simplified94.3%
Taylor expanded in z around 0 47.1%
if 1.49999999999999988e70 < x Initial program 61.4%
Taylor expanded in y around inf 29.7%
*-commutative29.7%
associate-/l*60.5%
Applied egg-rr60.5%
(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 80.6%
remove-double-neg80.6%
distribute-frac-neg280.6%
distribute-frac-neg80.6%
distribute-rgt-neg-in80.6%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
(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 80.6%
remove-double-neg80.6%
distribute-frac-neg280.6%
distribute-frac-neg80.6%
distribute-rgt-neg-in80.6%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
Taylor expanded in z around 0 49.9%
(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 2024181
(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))