
(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 (- (+ x y) (* (+ x y) z)))
double code(double x, double y, double z) {
return (x + y) - ((x + 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) - ((x + y) * z)
end function
public static double code(double x, double y, double z) {
return (x + y) - ((x + y) * z);
}
def code(x, y, z): return (x + y) - ((x + y) * z)
function code(x, y, z) return Float64(Float64(x + y) - Float64(Float64(x + y) * z)) end
function tmp = code(x, y, z) tmp = (x + y) - ((x + y) * z); end
code[x_, y_, z_] := N[(N[(x + y), $MachinePrecision] - N[(N[(x + y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x + y\right) - \left(x + y\right) \cdot z
\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 (if (or (<= z -1.38e-6) (not (<= z 1.85e-9))) (* y (- 1.0 z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.38e-6) || !(z <= 1.85e-9)) {
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 <= (-1.38d-6)) .or. (.not. (z <= 1.85d-9))) 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 <= -1.38e-6) || !(z <= 1.85e-9)) {
tmp = y * (1.0 - z);
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.38e-6) or not (z <= 1.85e-9): tmp = y * (1.0 - z) else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.38e-6) || !(z <= 1.85e-9)) 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 <= -1.38e-6) || ~((z <= 1.85e-9))) tmp = y * (1.0 - z); else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.38e-6], N[Not[LessEqual[z, 1.85e-9]], $MachinePrecision]], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.38 \cdot 10^{-6} \lor \neg \left(z \leq 1.85 \cdot 10^{-9}\right):\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -1.3799999999999999e-6 or 1.85e-9 < z Initial program 100.0%
Taylor expanded in x around 0 48.4%
if -1.3799999999999999e-6 < z < 1.85e-9Initial program 100.0%
Taylor expanded in z around 0 99.3%
+-commutative99.3%
Simplified99.3%
Final simplification74.5%
(FPCore (x y z) :precision binary64 (if (or (<= z -50.0) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -50.0) || !(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 <= (-50.0d0)) .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 <= -50.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -50.0) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -50.0) || !(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 <= -50.0) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -50.0], 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 -50 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -50 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 99.0%
neg-mul-199.0%
Simplified99.0%
Taylor expanded in x around 0 47.6%
associate-*r*47.6%
mul-1-neg47.6%
Simplified47.6%
if -50 < z < 1Initial program 100.0%
Taylor expanded in z around 0 96.8%
+-commutative96.8%
Simplified96.8%
Final simplification73.7%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -1e-259) (* x (- 1.0 z)) (- y (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -1e-259) {
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) <= (-1d-259)) 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) <= -1e-259) {
tmp = x * (1.0 - z);
} else {
tmp = y - (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -1e-259: tmp = x * (1.0 - z) else: tmp = y - (y * z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -1e-259) 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) <= -1e-259) 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], -1e-259], 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 -1 \cdot 10^{-259}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y - y \cdot z\\
\end{array}
\end{array}
if (+.f64 x y) < -1.0000000000000001e-259Initial program 100.0%
Taylor expanded in x around inf 59.3%
*-commutative59.3%
Simplified59.3%
if -1.0000000000000001e-259 < (+.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 53.3%
associate-*r*53.3%
mul-1-neg53.3%
Simplified53.3%
distribute-lft-neg-out53.3%
unsub-neg53.3%
Applied egg-rr53.3%
Final simplification56.2%
(FPCore (x y z) :precision binary64 (if (<= x -1.4e-131) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.4e-131) {
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 <= (-1.4d-131)) 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 <= -1.4e-131) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.4e-131: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.4e-131) 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 <= -1.4e-131) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.4e-131], 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 -1.4 \cdot 10^{-131}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -1.4e-131Initial program 100.0%
Taylor expanded in x around inf 72.7%
*-commutative72.7%
Simplified72.7%
if -1.4e-131 < x Initial program 100.0%
Taylor expanded in x around 0 59.8%
Final simplification64.7%
(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}
Initial program 100.0%
(FPCore (x y z) :precision binary64 (if (<= x -4.4e-89) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -4.4e-89) {
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 <= (-4.4d-89)) 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 <= -4.4e-89) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -4.4e-89: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -4.4e-89) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -4.4e-89) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -4.4e-89], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -4.4 \cdot 10^{-89}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -4.40000000000000024e-89Initial program 100.0%
Taylor expanded in z around 0 63.2%
+-commutative63.2%
Simplified63.2%
Taylor expanded in y around 0 46.9%
if -4.40000000000000024e-89 < x Initial program 100.0%
Taylor expanded in z around 0 47.5%
+-commutative47.5%
Simplified47.5%
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 53.2%
+-commutative53.2%
Simplified53.2%
Final simplification53.2%
(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 53.2%
+-commutative53.2%
Simplified53.2%
Taylor expanded in y around 0 28.2%
herbie shell --seed 2024144
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))