
(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 11 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 (- (+ x y) (* z (+ x y))))
double code(double x, double y, double z) {
return (x + y) - (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 = (x + y) - (z * (x + y))
end function
public static double code(double x, double y, double z) {
return (x + y) - (z * (x + y));
}
def code(x, y, z): return (x + y) - (z * (x + y))
function code(x, y, z) return Float64(Float64(x + y) - Float64(z * Float64(x + y))) end
function tmp = code(x, y, z) tmp = (x + y) - (z * (x + y)); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] - N[(z * N[(x + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - z \cdot \left(x + y\right)
\end{array}
Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- z))))
(if (<= z -20.0)
t_0
(if (<= z 1.0) (+ x y) (if (<= z 6.3e+97) (* x (- z)) t_0)))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (z <= -20.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else if (z <= 6.3e+97) {
tmp = x * -z;
} else {
tmp = t_0;
}
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) :: t_0
real(8) :: tmp
t_0 = y * -z
if (z <= (-20.0d0)) then
tmp = t_0
else if (z <= 1.0d0) then
tmp = x + y
else if (z <= 6.3d+97) then
tmp = x * -z
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (z <= -20.0) {
tmp = t_0;
} else if (z <= 1.0) {
tmp = x + y;
} else if (z <= 6.3e+97) {
tmp = x * -z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z tmp = 0 if z <= -20.0: tmp = t_0 elif z <= 1.0: tmp = x + y elif z <= 6.3e+97: tmp = x * -z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-z)) tmp = 0.0 if (z <= -20.0) tmp = t_0; elseif (z <= 1.0) tmp = Float64(x + y); elseif (z <= 6.3e+97) tmp = Float64(x * Float64(-z)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -z; tmp = 0.0; if (z <= -20.0) tmp = t_0; elseif (z <= 1.0) tmp = x + y; elseif (z <= 6.3e+97) tmp = x * -z; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[z, -20.0], t$95$0, If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], If[LessEqual[z, 6.3e+97], N[(x * (-z)), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -20:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{elif}\;z \leq 6.3 \cdot 10^{+97}:\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -20 or 6.29999999999999997e97 < z Initial program 100.0%
Taylor expanded in z around inf 98.1%
neg-mul-198.1%
Simplified98.1%
Taylor expanded in x around 0 59.8%
associate-*r*59.8%
mul-1-neg59.8%
Simplified59.8%
if -20 < z < 1Initial program 99.9%
Taylor expanded in z around 0 97.4%
+-commutative97.4%
Simplified97.4%
if 1 < z < 6.29999999999999997e97Initial program 100.0%
Taylor expanded in x around inf 51.4%
*-commutative51.4%
Simplified51.4%
Taylor expanded in z around inf 51.4%
neg-mul-195.3%
Simplified51.4%
Final simplification78.2%
(FPCore (x y z) :precision binary64 (if (or (<= z -1.2e-5) (not (<= z 6.2e-25))) (* y (- 1.0 z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.2e-5) || !(z <= 6.2e-25)) {
tmp = y * (1.0 - 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 <= (-1.2d-5)) .or. (.not. (z <= 6.2d-25))) then
tmp = y * (1.0d0 - 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 <= -1.2e-5) || !(z <= 6.2e-25)) {
tmp = y * (1.0 - z);
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.2e-5) or not (z <= 6.2e-25): tmp = y * (1.0 - z) else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.2e-5) || !(z <= 6.2e-25)) tmp = Float64(y * Float64(1.0 - z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -1.2e-5) || ~((z <= 6.2e-25))) tmp = y * (1.0 - z); else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.2e-5], N[Not[LessEqual[z, 6.2e-25]], $MachinePrecision]], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.2 \cdot 10^{-5} \lor \neg \left(z \leq 6.2 \cdot 10^{-25}\right):\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -1.2e-5 or 6.19999999999999989e-25 < z Initial program 100.0%
Taylor expanded in x around 0 59.9%
if -1.2e-5 < z < 6.19999999999999989e-25Initial program 99.9%
Taylor expanded in z around 0 99.2%
+-commutative99.2%
Simplified99.2%
Final simplification78.6%
(FPCore (x y z) :precision binary64 (if (or (<= z -16.5) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -16.5) || !(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 <= (-16.5d0)) .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 <= -16.5) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -16.5) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -16.5) || !(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 <= -16.5) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -16.5], 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 -16.5 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -16.5 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 97.8%
neg-mul-197.8%
Simplified97.8%
Taylor expanded in x around 0 58.2%
associate-*r*58.2%
mul-1-neg58.2%
Simplified58.2%
if -16.5 < z < 1Initial program 99.9%
Taylor expanded in z around 0 97.4%
+-commutative97.4%
Simplified97.4%
Final simplification78.0%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -2e-226) (- x (* x z)) (- y (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -2e-226) {
tmp = x - (x * 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) <= (-2d-226)) then
tmp = x - (x * 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) <= -2e-226) {
tmp = x - (x * z);
} else {
tmp = y - (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -2e-226: tmp = x - (x * z) else: tmp = y - (y * z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -2e-226) tmp = Float64(x - Float64(x * 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) <= -2e-226) tmp = x - (x * z); else tmp = y - (y * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -2e-226], N[(x - N[(x * z), $MachinePrecision]), $MachinePrecision], N[(y - N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x + y \leq -2 \cdot 10^{-226}:\\
\;\;\;\;x - x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y - y \cdot z\\
\end{array}
\end{array}
if (+.f64 x y) < -1.99999999999999984e-226Initial program 99.9%
sub-neg99.9%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Taylor expanded in x around inf 73.3%
associate-*r*73.3%
mul-1-neg73.3%
Simplified73.3%
distribute-lft-neg-out73.3%
unsub-neg73.3%
Applied egg-rr73.3%
Taylor expanded in y around 0 52.2%
if -1.99999999999999984e-226 < (+.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 58.2%
associate-*r*58.2%
mul-1-neg58.2%
Simplified58.2%
distribute-lft-neg-out58.2%
unsub-neg58.2%
*-commutative58.2%
Applied egg-rr58.2%
Final simplification55.6%
(FPCore (x y z) :precision binary64 (if (<= x -7e-134) (- x (* x z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -7e-134) {
tmp = x - (x * 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 (x <= (-7d-134)) then
tmp = x - (x * 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 (x <= -7e-134) {
tmp = x - (x * z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -7e-134: tmp = x - (x * z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -7e-134) tmp = Float64(x - Float64(x * z)); else tmp = Float64(y * Float64(1.0 - z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -7e-134) tmp = x - (x * z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -7e-134], N[(x - N[(x * z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -7 \cdot 10^{-134}:\\
\;\;\;\;x - x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -6.9999999999999997e-134Initial 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 inf 79.1%
associate-*r*79.1%
mul-1-neg79.1%
Simplified79.1%
distribute-lft-neg-out79.1%
unsub-neg79.1%
Applied egg-rr79.1%
Taylor expanded in y around 0 65.7%
if -6.9999999999999997e-134 < x Initial program 99.9%
Taylor expanded in x around 0 63.3%
(FPCore (x y z) :precision binary64 (if (<= x -7e-134) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -7e-134) {
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 (x <= (-7d-134)) 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 (x <= -7e-134) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -7e-134: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -7e-134) 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 (x <= -7e-134) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -7e-134], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -7 \cdot 10^{-134}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -6.9999999999999997e-134Initial program 100.0%
Taylor expanded in x around inf 65.7%
*-commutative65.7%
Simplified65.7%
if -6.9999999999999997e-134 < x Initial program 99.9%
Taylor expanded in x around 0 63.3%
Final simplification64.0%
(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 (<= x -4e-135) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -4e-135) {
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 (x <= (-4d-135)) 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 (x <= -4e-135) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -4e-135: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -4e-135) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -4e-135) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -4e-135], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4 \cdot 10^{-135}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -4.0000000000000002e-135Initial program 100.0%
Taylor expanded in z around 0 45.7%
+-commutative45.7%
Simplified45.7%
Taylor expanded in y around 0 32.4%
if -4.0000000000000002e-135 < x Initial program 99.9%
Taylor expanded in z around 0 53.5%
+-commutative53.5%
Simplified53.5%
Taylor expanded in y around inf 31.9%
(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 51.0%
+-commutative51.0%
Simplified51.0%
Final simplification51.0%
(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 51.0%
+-commutative51.0%
Simplified51.0%
Taylor expanded in y around 0 26.4%
herbie shell --seed 2024116
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))