
(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 8 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
(let* ((t_0 (* x (- z))))
(if (<= (- 1.0 z) -10.0)
t_0
(if (<= (- 1.0 z) 1.0)
(+ x y)
(if (<= (- 1.0 z) 1e+180) (* y (- 1.0 z)) t_0)))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if ((1.0 - z) <= -10.0) {
tmp = t_0;
} else if ((1.0 - z) <= 1.0) {
tmp = x + y;
} else if ((1.0 - z) <= 1e+180) {
tmp = y * (1.0 - 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 = x * -z
if ((1.0d0 - z) <= (-10.0d0)) then
tmp = t_0
else if ((1.0d0 - z) <= 1.0d0) then
tmp = x + y
else if ((1.0d0 - z) <= 1d+180) then
tmp = y * (1.0d0 - z)
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if ((1.0 - z) <= -10.0) {
tmp = t_0;
} else if ((1.0 - z) <= 1.0) {
tmp = x + y;
} else if ((1.0 - z) <= 1e+180) {
tmp = y * (1.0 - z);
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if (1.0 - z) <= -10.0: tmp = t_0 elif (1.0 - z) <= 1.0: tmp = x + y elif (1.0 - z) <= 1e+180: tmp = y * (1.0 - z) else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (Float64(1.0 - z) <= -10.0) tmp = t_0; elseif (Float64(1.0 - z) <= 1.0) tmp = Float64(x + y); elseif (Float64(1.0 - z) <= 1e+180) tmp = Float64(y * Float64(1.0 - z)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if ((1.0 - z) <= -10.0) tmp = t_0; elseif ((1.0 - z) <= 1.0) tmp = x + y; elseif ((1.0 - z) <= 1e+180) tmp = y * (1.0 - z); else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[N[(1.0 - z), $MachinePrecision], -10.0], t$95$0, If[LessEqual[N[(1.0 - z), $MachinePrecision], 1.0], N[(x + y), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 1e+180], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;1 - z \leq -10:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;1 - z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{elif}\;1 - z \leq 10^{+180}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < -10 or 1e180 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
Taylor expanded in x around inf 53.5%
*-commutative53.5%
Simplified53.5%
Taylor expanded in z around inf 52.7%
neg-mul-152.7%
Simplified52.7%
if -10 < (-.f64 #s(literal 1 binary64) z) < 1Initial program 100.0%
Taylor expanded in z around 0 99.2%
+-commutative99.2%
Simplified99.2%
if 1 < (-.f64 #s(literal 1 binary64) z) < 1e180Initial program 100.0%
Taylor expanded in x around 0 48.4%
Final simplification72.6%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z))))
(if (<= z -3.2e+180)
t_0
(if (<= z -105.0) (* y (- z)) (if (<= z 1.0) (+ x y) t_0)))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -3.2e+180) {
tmp = t_0;
} else if (z <= -105.0) {
tmp = y * -z;
} else if (z <= 1.0) {
tmp = x + y;
} 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 = x * -z
if (z <= (-3.2d+180)) then
tmp = t_0
else if (z <= (-105.0d0)) then
tmp = y * -z
else if (z <= 1.0d0) then
tmp = x + y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (z <= -3.2e+180) {
tmp = t_0;
} else if (z <= -105.0) {
tmp = y * -z;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if z <= -3.2e+180: tmp = t_0 elif z <= -105.0: tmp = y * -z elif z <= 1.0: tmp = x + y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (z <= -3.2e+180) tmp = t_0; elseif (z <= -105.0) tmp = Float64(y * Float64(-z)); elseif (z <= 1.0) tmp = Float64(x + y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (z <= -3.2e+180) tmp = t_0; elseif (z <= -105.0) tmp = y * -z; elseif (z <= 1.0) tmp = x + y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[z, -3.2e+180], t$95$0, If[LessEqual[z, -105.0], N[(y * (-z)), $MachinePrecision], If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], t$95$0]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;z \leq -3.2 \cdot 10^{+180}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;z \leq -105:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if z < -3.19999999999999994e180 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 53.5%
*-commutative53.5%
Simplified53.5%
Taylor expanded in z around inf 52.7%
neg-mul-152.7%
Simplified52.7%
if -3.19999999999999994e180 < z < -105Initial program 100.0%
Taylor expanded in x around 0 44.1%
Taylor expanded in z around inf 42.4%
neg-mul-155.9%
Simplified42.4%
if -105 < z < 1Initial program 100.0%
Taylor expanded in z around 0 95.6%
+-commutative95.6%
Simplified95.6%
Final simplification71.3%
(FPCore (x y z) :precision binary64 (if (or (<= z -105.0) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -105.0) || !(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 <= (-105.0d0)) .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 <= -105.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -105.0) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -105.0) || !(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 <= -105.0) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -105.0], 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 -105 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -105 or 1 < z Initial program 100.0%
Taylor expanded in x around 0 47.3%
Taylor expanded in z around inf 45.5%
neg-mul-153.9%
Simplified45.5%
if -105 < z < 1Initial program 100.0%
Taylor expanded in z around 0 95.6%
+-commutative95.6%
Simplified95.6%
Final simplification69.6%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -1e-225) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -1e-225) {
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 + y) <= (-1d-225)) 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 + y) <= -1e-225) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -1e-225: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -1e-225) 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 + y) <= -1e-225) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -1e-225], 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 + y \leq -1 \cdot 10^{-225}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -9.9999999999999996e-226Initial program 100.0%
Taylor expanded in x around inf 45.7%
*-commutative45.7%
Simplified45.7%
if -9.9999999999999996e-226 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0 46.9%
Final simplification46.3%
(FPCore (x y z) :precision binary64 (if (<= x -2.65e-50) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -2.65e-50) {
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 <= (-2.65d-50)) 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 <= -2.65e-50) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -2.65e-50: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -2.65e-50) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -2.65e-50) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -2.65e-50], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.65 \cdot 10^{-50}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -2.65000000000000005e-50Initial program 100.0%
Taylor expanded in x around inf 70.7%
*-commutative70.7%
Simplified70.7%
Taylor expanded in z around 0 34.9%
if -2.65000000000000005e-50 < x Initial program 100.0%
Taylor expanded in x around 0 58.0%
Taylor expanded in z around 0 30.3%
Taylor expanded in y around 0 30.3%
(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 48.0%
+-commutative48.0%
Simplified48.0%
Final simplification48.0%
(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 x around inf 50.3%
*-commutative50.3%
Simplified50.3%
Taylor expanded in z around 0 22.7%
herbie shell --seed 2024185
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))