
(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) (* 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
(if (<= (- 1.0 z) -1e+236)
(* y (- z))
(if (or (<= (- 1.0 z) -50.0) (not (<= (- 1.0 z) 2.0)))
(* x (- z))
(+ x y))))
double code(double x, double y, double z) {
double tmp;
if ((1.0 - z) <= -1e+236) {
tmp = y * -z;
} else if (((1.0 - z) <= -50.0) || !((1.0 - z) <= 2.0)) {
tmp = x * -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 ((1.0d0 - z) <= (-1d+236)) then
tmp = y * -z
else if (((1.0d0 - z) <= (-50.0d0)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
tmp = x * -z
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((1.0 - z) <= -1e+236) {
tmp = y * -z;
} else if (((1.0 - z) <= -50.0) || !((1.0 - z) <= 2.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (1.0 - z) <= -1e+236: tmp = y * -z elif ((1.0 - z) <= -50.0) or not ((1.0 - z) <= 2.0): tmp = x * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if (Float64(1.0 - z) <= -1e+236) tmp = Float64(y * Float64(-z)); elseif ((Float64(1.0 - z) <= -50.0) || !(Float64(1.0 - z) <= 2.0)) tmp = Float64(x * Float64(-z)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((1.0 - z) <= -1e+236) tmp = y * -z; elseif (((1.0 - z) <= -50.0) || ~(((1.0 - z) <= 2.0))) tmp = x * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(1.0 - z), $MachinePrecision], -1e+236], N[(y * (-z)), $MachinePrecision], If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -50.0], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -1 \cdot 10^{+236}:\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{elif}\;1 - z \leq -50 \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if (-.f64 #s(literal 1 binary64) z) < -1.00000000000000005e236Initial program 100.0%
Taylor expanded in z around inf 100.0%
neg-mul-1100.0%
Simplified100.0%
Taylor expanded in x around 0 43.0%
associate-*r*43.0%
mul-1-neg43.0%
Simplified43.0%
if -1.00000000000000005e236 < (-.f64 #s(literal 1 binary64) z) < -50 or 2 < (-.f64 #s(literal 1 binary64) z) Initial program 100.0%
Taylor expanded in x around inf 50.7%
*-commutative50.7%
Simplified50.7%
Taylor expanded in z around inf 49.7%
neg-mul-197.9%
Simplified49.7%
if -50 < (-.f64 #s(literal 1 binary64) z) < 2Initial program 100.0%
Taylor expanded in z around 0 96.8%
+-commutative96.8%
Simplified96.8%
Final simplification74.4%
(FPCore (x y z) :precision binary64 (if (<= y 4.7e-122) (* x (- 1.0 z)) (if (<= y 6.8e-33) (+ x y) (* y (- 1.0 z)))))
double code(double x, double y, double z) {
double tmp;
if (y <= 4.7e-122) {
tmp = x * (1.0 - z);
} else if (y <= 6.8e-33) {
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 (y <= 4.7d-122) then
tmp = x * (1.0d0 - z)
else if (y <= 6.8d-33) 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 (y <= 4.7e-122) {
tmp = x * (1.0 - z);
} else if (y <= 6.8e-33) {
tmp = x + y;
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= 4.7e-122: tmp = x * (1.0 - z) elif y <= 6.8e-33: tmp = x + y else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (y <= 4.7e-122) tmp = Float64(x * Float64(1.0 - z)); elseif (y <= 6.8e-33) 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 (y <= 4.7e-122) tmp = x * (1.0 - z); elseif (y <= 6.8e-33) tmp = x + y; else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, 4.7e-122], N[(x * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], If[LessEqual[y, 6.8e-33], N[(x + y), $MachinePrecision], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 4.7 \cdot 10^{-122}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{elif}\;y \leq 6.8 \cdot 10^{-33}:\\
\;\;\;\;x + y\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if y < 4.6999999999999999e-122Initial program 100.0%
Taylor expanded in x around inf 57.9%
*-commutative57.9%
Simplified57.9%
if 4.6999999999999999e-122 < y < 6.8000000000000001e-33Initial program 100.0%
Taylor expanded in z around 0 63.2%
+-commutative63.2%
Simplified63.2%
if 6.8000000000000001e-33 < y Initial program 100.0%
Taylor expanded in x around 0 79.2%
Final simplification63.6%
(FPCore (x y z) :precision binary64 (if (or (<= z -55000000000.0) (not (<= z 1.0))) (* y (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -55000000000.0) || !(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 <= (-55000000000.0d0)) .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 <= -55000000000.0) || !(z <= 1.0)) {
tmp = y * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -55000000000.0) or not (z <= 1.0): tmp = y * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -55000000000.0) || !(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 <= -55000000000.0) || ~((z <= 1.0))) tmp = y * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -55000000000.0], 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 -55000000000 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;y \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -5.5e10 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 98.5%
neg-mul-198.5%
Simplified98.5%
Taylor expanded in x around 0 50.7%
associate-*r*50.7%
mul-1-neg50.7%
Simplified50.7%
if -5.5e10 < z < 1Initial program 100.0%
Taylor expanded in z around 0 96.2%
+-commutative96.2%
Simplified96.2%
Final simplification75.2%
(FPCore (x y z) :precision binary64 (if (<= (+ x y) -5e-249) (- x (* x z)) (- y (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((x + y) <= -5e-249) {
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) <= (-5d-249)) 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) <= -5e-249) {
tmp = x - (x * z);
} else {
tmp = y - (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x + y) <= -5e-249: tmp = x - (x * z) else: tmp = y - (y * z) return tmp
function code(x, y, z) tmp = 0.0 if (Float64(x + y) <= -5e-249) 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) <= -5e-249) tmp = x - (x * z); else tmp = y - (y * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[N[(x + y), $MachinePrecision], -5e-249], 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 -5 \cdot 10^{-249}:\\
\;\;\;\;x - x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y - y \cdot z\\
\end{array}
\end{array}
if (+.f64 x y) < -4.9999999999999999e-249Initial program 100.0%
sub-neg100.0%
distribute-lft-in100.0%
*-commutative100.0%
*-un-lft-identity100.0%
Applied egg-rr100.0%
Taylor expanded in y around 0 49.7%
mul-1-neg49.7%
unsub-neg49.7%
Applied egg-rr49.7%
if -4.9999999999999999e-249 < (+.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 53.1%
associate-*r*53.1%
mul-1-neg53.1%
Simplified53.1%
distribute-lft-neg-out53.1%
*-commutative53.1%
unsub-neg53.1%
Applied egg-rr53.1%
Final simplification51.3%
(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 -1.65e-22) x y))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.65e-22) {
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 <= (-1.65d-22)) 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 <= -1.65e-22) {
tmp = x;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.65e-22: tmp = x else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.65e-22) tmp = x; else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.65e-22) tmp = x; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.65e-22], x, y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.65 \cdot 10^{-22}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -1.65e-22Initial program 100.0%
Taylor expanded in z around 0 49.0%
+-commutative49.0%
Simplified49.0%
Taylor expanded in y around 0 36.3%
if -1.65e-22 < x Initial program 100.0%
Taylor expanded in z around 0 55.1%
+-commutative55.1%
Simplified55.1%
Taylor expanded in y around inf 35.7%
(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 53.5%
+-commutative53.5%
Simplified53.5%
Final simplification53.5%
(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 53.5%
+-commutative53.5%
Simplified53.5%
Taylor expanded in y around 0 25.4%
herbie shell --seed 2024172
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))