
(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 (if (<= (- 1.0 z) 0.999999999) (* y (- 1.0 z)) (if (<= (- 1.0 z) 5000000000.0) (+ x y) (* x (- z)))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 - z) <= 0.999999999) {
tmp = y * (1.0 - z);
} else if ((1.0 - z) <= 5000000000.0) {
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 ((1.0d0 - z) <= 0.999999999d0) then
tmp = y * (1.0d0 - z)
else if ((1.0d0 - z) <= 5000000000.0d0) 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 ((1.0 - z) <= 0.999999999) {
tmp = y * (1.0 - z);
} else if ((1.0 - z) <= 5000000000.0) {
tmp = x + y;
} else {
tmp = x * -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 - z) <= 0.999999999: tmp = y * (1.0 - z) elif (1.0 - z) <= 5000000000.0: tmp = x + y else: tmp = x * -z return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 - z) <= 0.999999999) tmp = Float64(y * Float64(1.0 - z)); elseif (Float64(1.0 - z) <= 5000000000.0) 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 ((1.0 - z) <= 0.999999999) tmp = y * (1.0 - z); elseif ((1.0 - z) <= 5000000000.0) tmp = x + y; else tmp = x * -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 - z), $MachinePrecision], 0.999999999], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(1.0 - z), $MachinePrecision], 5000000000.0], N[(x + y), $MachinePrecision], N[(x * (-z)), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq 0.999999999:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{elif}\;1 - z \leq 5000000000:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(-z\right)\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < 0.999999999000000028Initial program 100.0%
Taylor expanded in x around 0 54.6%
if 0.999999999000000028 < (-.f64 #s(literal 1 binary64) z) < 5e9Initial program 100.0%
Taylor expanded in z around 0 97.6%
+-commutative97.6%
Simplified97.6%
if 5e9 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
Taylor expanded in x around inf 50.6%
*-commutative50.6%
Simplified50.6%
Taylor expanded in z around inf 50.5%
neg-mul-150.5%
Simplified50.5%
Final simplification75.1%
(FPCore (x y z) :precision binary64 (if (or (<= z -3.7) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -3.7) || !(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 <= (-3.7d0)) .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 <= -3.7) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -3.7) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -3.7) || !(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 <= -3.7) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.7], 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 -3.7 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -3.7000000000000002 or 1 < z Initial program 100.0%
Taylor expanded in x around 0 54.6%
Taylor expanded in z around inf 52.5%
neg-mul-151.6%
Simplified52.5%
if -3.7000000000000002 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.0%
+-commutative98.0%
Simplified98.0%
Final simplification75.4%
(FPCore (x y z) :precision binary64 (if (<= z -3200000000.0) (* x (- z)) (if (<= z 1.0) (+ x y) (* y (- z)))))
double code(double x, double y, double z) {
double tmp;
if (z <= -3200000000.0) {
tmp = x * -z;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = 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 (z <= (-3200000000.0d0)) then
tmp = x * -z
else if (z <= 1.0d0) then
tmp = x + y
else
tmp = y * -z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -3200000000.0) {
tmp = x * -z;
} else if (z <= 1.0) {
tmp = x + y;
} else {
tmp = y * -z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -3200000000.0: tmp = x * -z elif z <= 1.0: tmp = x + y else: tmp = y * -z return tmp
function code(x, y, z) tmp = 0.0 if (z <= -3200000000.0) tmp = Float64(x * Float64(-z)); elseif (z <= 1.0) tmp = Float64(x + y); else tmp = Float64(y * Float64(-z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -3200000000.0) tmp = x * -z; elseif (z <= 1.0) tmp = x + y; else tmp = y * -z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -3200000000.0], N[(x * (-z)), $MachinePrecision], If[LessEqual[z, 1.0], N[(x + y), $MachinePrecision], N[(y * (-z)), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3200000000:\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{elif}\;z \leq 1:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\end{array}
\end{array}
if z < -3.2e9Initial program 100.0%
Taylor expanded in x around inf 50.6%
*-commutative50.6%
Simplified50.6%
Taylor expanded in z around inf 50.5%
neg-mul-150.5%
Simplified50.5%
if -3.2e9 < z < 1Initial program 100.0%
Taylor expanded in z around 0 96.0%
+-commutative96.0%
Simplified96.0%
if 1 < z Initial program 100.0%
Taylor expanded in x around 0 53.4%
Taylor expanded in z around inf 52.1%
neg-mul-155.1%
Simplified52.1%
Final simplification74.4%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -4e-291) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -4e-291) {
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) <= (-4d-291)) 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) <= -4e-291) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -4e-291: 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) <= -4e-291) 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) <= -4e-291) 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], -4e-291], 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 -4 \cdot 10^{-291}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if (+.f64 x y) < -3.99999999999999985e-291Initial program 100.0%
Taylor expanded in x around inf 51.0%
*-commutative51.0%
Simplified51.0%
if -3.99999999999999985e-291 < (+.f64 x y) Initial program 100.0%
Taylor expanded in x around 0 53.1%
Final simplification52.0%
(FPCore (x y z) :precision binary64 (if (<= x -1.3e-13) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.3e-13) {
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 <= (-1.3d-13)) 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 <= -1.3e-13) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.3e-13: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.3e-13) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.3e-13) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.3e-13], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.3 \cdot 10^{-13}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -1.3e-13Initial program 100.0%
Taylor expanded in x around inf 79.0%
*-commutative79.0%
Simplified79.0%
Taylor expanded in z around 0 41.7%
if -1.3e-13 < x Initial program 100.0%
Taylor expanded in x around 0 62.3%
Taylor expanded in z around 0 31.4%
Taylor expanded in y around 0 31.4%
(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 51.3%
+-commutative51.3%
Simplified51.3%
Final simplification51.3%
(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 51.0%
*-commutative51.0%
Simplified51.0%
Taylor expanded in z around 0 26.0%
herbie shell --seed 2024186
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))