
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - 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) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (* (+ x y) (- 1.0 z)))
double code(double x, double y, double z) {
return (x + y) * (1.0 - 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) * (1.0d0 - z)
end function
public static double code(double x, double y, double z) {
return (x + y) * (1.0 - z);
}
def code(x, y, z): return (x + y) * (1.0 - z)
function code(x, y, z) return Float64(Float64(x + y) * Float64(1.0 - z)) end
function tmp = code(x, y, z) tmp = (x + y) * (1.0 - z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) \cdot \left(1 - z\right)
\end{array}
(FPCore (x y z) :precision binary64 (* (- 1.0 z) (+ x y)))
double code(double x, double y, double z) {
return (1.0 - z) * (x + y);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (1.0d0 - z) * (x + y)
end function
public static double code(double x, double y, double z) {
return (1.0 - z) * (x + y);
}
def code(x, y, z): return (1.0 - z) * (x + y)
function code(x, y, z) return Float64(Float64(1.0 - z) * Float64(x + y)) end
function tmp = code(x, y, z) tmp = (1.0 - z) * (x + y); end
code[x_, y_, z_] := N[(N[(1.0 - z), $MachinePrecision] * N[(x + y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - z\right) \cdot \left(x + y\right)
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (<= (- 1.0 z) -2e+15) (* x (- z)) (if (<= (- 1.0 z) 1.00005) (+ x y) (* y (- 1.0 z)))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 - z) <= -2e+15) {
tmp = x * -z;
} else if ((1.0 - z) <= 1.00005) {
tmp = x + y;
} else {
tmp = y * (1.0 - 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 ((1.0d0 - z) <= (-2d+15)) then
tmp = x * -z
else if ((1.0d0 - z) <= 1.00005d0) then
tmp = x + y
else
tmp = y * (1.0d0 - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((1.0 - z) <= -2e+15) {
tmp = x * -z;
} else if ((1.0 - z) <= 1.00005) {
tmp = x + y;
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 - z) <= -2e+15: tmp = x * -z elif (1.0 - z) <= 1.00005: tmp = x + y else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 - z) <= -2e+15) tmp = Float64(x * Float64(-z)); elseif (Float64(1.0 - z) <= 1.00005) tmp = Float64(x + y); else tmp = Float64(y * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((1.0 - z) <= -2e+15) tmp = x * -z; elseif ((1.0 - z) <= 1.00005) tmp = x + y; else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 - z), $MachinePrecision], -2e+15], N[(x * (-z)), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 1.00005], N[(x + y), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -2 \cdot 10^{+15}:\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{elif}\;1 - z \leq 1.00005:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < -2e15Initial program 100.0%
Taylor expanded in x around inf 44.0%
*-commutative44.0%
Simplified44.0%
Taylor expanded in z around inf 44.0%
neg-mul-144.0%
Simplified44.0%
if -2e15 < (-.f64 #s(literal 1 binary64) z) < 1.00005000000000011Initial program 100.0%
Taylor expanded in z around 0 99.1%
+-commutative99.1%
Simplified99.1%
if 1.00005000000000011 < (-.f64 #s(literal 1 binary64) z) Initial program 99.9%
Taylor expanded in x around 0 62.1%
Final simplification72.8%
(FPCore (x y z) :precision binary64 (if (or (<= z -60.0) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -60.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = 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 <= (-60.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = y * -z
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -60.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -60.0) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -60.0) || !(z <= 1.0)) tmp = Float64(y * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -60.0) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -60.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(y * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -60 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -60 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 99.6%
neg-mul-146.7%
Simplified99.6%
Taylor expanded in x around 0 61.3%
associate-*r*61.3%
mul-1-neg61.3%
Simplified61.3%
if -60 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.0%
+-commutative98.0%
Simplified98.0%
Final simplification77.1%
(FPCore (x y z) :precision binary64 (if (<= z -56.0) (* y (- z)) (if (<= z 1.0) (+ x y) (* x (- z)))))
double code(double x, double y, double z) {
double tmp;
if (z <= -56.0) {
tmp = y * -z;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = x * -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 <= (-56.0d0)) then
tmp = y * -z
else if (z <= 1.0d0) then
tmp = x + y
else
tmp = x * -z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -56.0) {
tmp = y * -z;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = x * -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -56.0: tmp = y * -z elif z <= 1.0: tmp = x + y else: tmp = x * -z return tmp
function code(x, y, z) tmp = 0.0 if (z <= -56.0) tmp = Float64(y * Float64(-z)); elseif (z <= 1.0) tmp = Float64(x + y); else tmp = Float64(x * Float64(-z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -56.0) tmp = y * -z; elseif (z <= 1.0) tmp = x + y; else tmp = x * -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -56.0], N[(y * (-z)), $MachinePrecision], If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], N[(x * (-z)), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -56:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(-z\right)\\
\end{array}
\end{array}
if z < -56Initial program 100.0%
Taylor expanded in z around inf 99.3%
neg-mul-149.0%
Simplified99.3%
Taylor expanded in x around 0 61.6%
associate-*r*61.6%
mul-1-neg61.6%
Simplified61.6%
if -56 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.0%
+-commutative98.0%
Simplified98.0%
if 1 < z Initial program 100.0%
Taylor expanded in x around inf 44.0%
*-commutative44.0%
Simplified44.0%
Taylor expanded in z around inf 44.0%
neg-mul-144.0%
Simplified44.0%
Final simplification72.5%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -5e-256) (* x (- 1.0 z)) (- y (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -5e-256) {
tmp = x * (1.0 - z);
} else {
tmp = y - (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 ((x + y) <= (-5d-256)) then
tmp = x * (1.0d0 - z)
else
tmp = y - (y * z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -5e-256) {
tmp = x * (1.0 - z);
} else {
tmp = y - (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -5e-256: tmp = x * (1.0 - z) else: tmp = y - (y * z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -5e-256) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y - Float64(y * z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x + y) <= -5e-256) tmp = x * (1.0 - z); else tmp = y - (y * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -5e-256], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y - N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -5 \cdot 10^{-256}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y - y \cdot z\\
\end{array}
\end{array}
if (+.f64 x y) < -5e-256Initial program 100.0%
Taylor expanded in x around inf 48.3%
*-commutative48.3%
Simplified48.3%
if -5e-256 < (+.f64 x y) Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Taylor expanded in x around 0 62.3%
associate-*r*62.3%
mul-1-neg62.3%
Simplified62.3%
distribute-lft-neg-out62.3%
unsub-neg62.3%
Applied egg-rr62.3%
Final simplification54.9%
(FPCore (x y z) :precision binary64 (if (<= y 4.2e-79) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (y <= 4.2e-79) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - 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 (y <= 4.2d-79) then
tmp = x * (1.0d0 - z)
else
tmp = y * (1.0d0 - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= 4.2e-79) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= 4.2e-79: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (y <= 4.2e-79) tmp = Float64(x * Float64(1.0 - z)); else tmp = Float64(y * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= 4.2e-79) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, 4.2e-79], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 4.2 \cdot 10^{-79}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if y < 4.1999999999999999e-79Initial program 100.0%
Taylor expanded in x around inf 53.3%
*-commutative53.3%
Simplified53.3%
if 4.1999999999999999e-79 < y Initial program 100.0%
Taylor expanded in x around 0 76.3%
Final simplification61.0%
(FPCore (x y z) :precision binary64 (if (<= y 2.3e-157) x y))
double code(double x, double y, double z) {
double tmp;
if (y <= 2.3e-157) {
tmp = x;
} else {
tmp = 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 (y <= 2.3d-157) then
tmp = x
else
tmp = y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= 2.3e-157) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= 2.3e-157: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (y <= 2.3e-157) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= 2.3e-157) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, 2.3e-157], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 2.3 \cdot 10^{-157}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if y < 2.29999999999999989e-157Initial program 100.0%
Taylor expanded in z around 0 45.6%
+-commutative45.6%
Simplified45.6%
Taylor expanded in y around 0 27.1%
if 2.29999999999999989e-157 < y Initial program 100.0%
Taylor expanded in z around 0 42.0%
+-commutative42.0%
Simplified42.0%
Taylor expanded in y around inf 32.1%
(FPCore (x y z) :precision binary64 (+ x y))
double code(double x, double y, double z) {
return x + 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
end function
public static double code(double x, double y, double z) {
return x + y;
}
def code(x, y, z): return x + y
function code(x, y, z) return Float64(x + y) end
function tmp = code(x, y, z) tmp = x + y; end
code[x_, y_, z_] := N[(x + y), $MachinePrecision]
\begin{array}{l}
\\
x + y
\end{array}
Initial program 100.0%
Taylor expanded in z around 0 44.2%
+-commutative44.2%
Simplified44.2%
Final simplification44.2%
(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 100.0%
Taylor expanded in z around 0 44.2%
+-commutative44.2%
Simplified44.2%
Taylor expanded in y around 0 21.3%
herbie shell --seed 2024157
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))