
(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 (* (- 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 (or (<= (- 1.0 z) -20.0) (not (<= (- 1.0 z) 2.0))) (* z (- (- x) y)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= -20.0) || !((1.0 - z) <= 2.0)) {
tmp = z * (-x - y);
} 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) <= (-20.0d0)) .or. (.not. ((1.0d0 - z) <= 2.0d0))) then
tmp = z * (-x - y)
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) <= -20.0) || !((1.0 - z) <= 2.0)) {
tmp = z * (-x - y);
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - z) <= -20.0) or not ((1.0 - z) <= 2.0): tmp = z * (-x - y) else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - z) <= -20.0) || !(Float64(1.0 - z) <= 2.0)) tmp = Float64(z * Float64(Float64(-x) - y)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (((1.0 - z) <= -20.0) || ~(((1.0 - z) <= 2.0))) tmp = z * (-x - y); else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], -20.0], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 2.0]], $MachinePrecision]], N[(z * N[((-x) - y), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq -20 \lor \neg \left(1 - z \leq 2\right):\\
\;\;\;\;z \cdot \left(\left(-x\right) - y\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if (-.f64 1 z) < -20 or 2 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in z around inf 96.9%
mul-1-neg96.9%
+-commutative96.9%
distribute-rgt-neg-out96.9%
+-commutative96.9%
Simplified96.9%
if -20 < (-.f64 1 z) < 2Initial program 100.0%
Taylor expanded in z around 0 99.0%
Final simplification97.9%
(FPCore (x y z) :precision binary64 (if (or (<= (- 1.0 z) 1.0) (not (<= (- 1.0 z) 20.0))) (* y (- 1.0 z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if (((1.0 - z) <= 1.0) || !((1.0 - z) <= 20.0)) {
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 (((1.0d0 - z) <= 1.0d0) .or. (.not. ((1.0d0 - z) <= 20.0d0))) 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 (((1.0 - z) <= 1.0) || !((1.0 - z) <= 20.0)) {
tmp = y * (1.0 - z);
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if ((1.0 - z) <= 1.0) or not ((1.0 - z) <= 20.0): tmp = y * (1.0 - z) else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((Float64(1.0 - z) <= 1.0) || !(Float64(1.0 - z) <= 20.0)) 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 (((1.0 - z) <= 1.0) || ~(((1.0 - z) <= 20.0))) tmp = y * (1.0 - z); else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[N[(1.0 - z), $MachinePrecision], 1.0], N[Not[LessEqual[N[(1.0 - z), $MachinePrecision], 20.0]], $MachinePrecision]], N[(y * N[(1.0 - z), $MachinePrecision]), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;1 - z \leq 1 \lor \neg \left(1 - z \leq 20\right):\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if (-.f64 1 z) < 1 or 20 < (-.f64 1 z) Initial program 100.0%
Taylor expanded in x around 0 51.6%
if 1 < (-.f64 1 z) < 20Initial program 99.0%
Taylor expanded in z around 0 60.9%
Final simplification51.7%
(FPCore (x y z) :precision binary64 (if (or (<= z -6e+20) (not (<= z 1.0))) (* x (- z)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -6e+20) || !(z <= 1.0)) {
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 ((z <= (-6d+20)) .or. (.not. (z <= 1.0d0))) 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 ((z <= -6e+20) || !(z <= 1.0)) {
tmp = x * -z;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -6e+20) or not (z <= 1.0): tmp = x * -z else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -6e+20) || !(z <= 1.0)) 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 ((z <= -6e+20) || ~((z <= 1.0))) tmp = x * -z; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -6e+20], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(x * (-z)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -6 \cdot 10^{+20} \lor \neg \left(z \leq 1\right):\\
\;\;\;\;x \cdot \left(-z\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -6e20 or 1 < z Initial program 100.0%
Taylor expanded in x around inf 54.7%
Taylor expanded in z around inf 54.7%
mul-1-neg54.7%
distribute-rgt-neg-in54.7%
Simplified54.7%
if -6e20 < z < 1Initial program 100.0%
Taylor expanded in z around 0 94.4%
Final simplification75.5%
(FPCore (x y z) :precision binary64 (if (or (<= z -21.0) (not (<= z 1.0))) (* z (- y)) (+ x y)))
double code(double x, double y, double z) {
double tmp;
if ((z <= -21.0) || !(z <= 1.0)) {
tmp = z * -y;
} 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 <= (-21.0d0)) .or. (.not. (z <= 1.0d0))) then
tmp = z * -y
else
tmp = x + y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -21.0) || !(z <= 1.0)) {
tmp = z * -y;
} else {
tmp = x + y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -21.0) or not (z <= 1.0): tmp = z * -y else: tmp = x + y return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -21.0) || !(z <= 1.0)) tmp = Float64(z * Float64(-y)); else tmp = Float64(x + y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -21.0) || ~((z <= 1.0))) tmp = z * -y; else tmp = x + y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -21.0], N[Not[LessEqual[z, 1.0]], $MachinePrecision]], N[(z * (-y)), $MachinePrecision], N[(x + y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -21 \lor \neg \left(z \leq 1\right):\\
\;\;\;\;z \cdot \left(-y\right)\\
\mathbf{else}:\\
\;\;\;\;x + y\\
\end{array}
\end{array}
if z < -21 or 1 < z Initial program 100.0%
Taylor expanded in z around inf 97.4%
mul-1-neg97.4%
+-commutative97.4%
distribute-rgt-neg-out97.4%
+-commutative97.4%
Simplified97.4%
Taylor expanded in y around inf 47.4%
associate-*r*47.4%
neg-mul-147.4%
Simplified47.4%
if -21 < z < 1Initial program 100.0%
Taylor expanded in z around 0 98.3%
Final simplification72.9%
(FPCore (x y z) :precision binary64 (if (<= x -5.6e-73) (* x (- 1.0 z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -5.6e-73) {
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 <= (-5.6d-73)) 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 <= -5.6e-73) {
tmp = x * (1.0 - z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -5.6e-73: tmp = x * (1.0 - z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -5.6e-73) 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 <= -5.6e-73) tmp = x * (1.0 - z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -5.6e-73], 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 -5.6 \cdot 10^{-73}:\\
\;\;\;\;x \cdot \left(1 - z\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -5.60000000000000023e-73Initial program 100.0%
Taylor expanded in x around inf 65.2%
if -5.60000000000000023e-73 < x Initial program 100.0%
Taylor expanded in x around 0 57.8%
Final simplification60.0%
(FPCore (x y z) :precision binary64 (if (<= x -1.4e-71) (- x (* x z)) (* y (- 1.0 z))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.4e-71) {
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 <= (-1.4d-71)) 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 <= -1.4e-71) {
tmp = x - (x * z);
} else {
tmp = y * (1.0 - z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.4e-71: tmp = x - (x * z) else: tmp = y * (1.0 - z) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.4e-71) 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 <= -1.4e-71) tmp = x - (x * z); else tmp = y * (1.0 - z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.4e-71], 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 -1.4 \cdot 10^{-71}:\\
\;\;\;\;x - x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(1 - z\right)\\
\end{array}
\end{array}
if x < -1.4e-71Initial program 100.0%
Taylor expanded in x around inf 65.2%
sub-neg65.2%
+-commutative65.2%
distribute-rgt1-in65.2%
distribute-lft-neg-out65.2%
unsub-neg65.2%
Simplified65.2%
if -1.4e-71 < x Initial program 100.0%
Taylor expanded in x around 0 57.8%
Final simplification60.0%
(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 50.7%
Final simplification50.7%
(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%
Taylor expanded in z around 0 25.0%
Final simplification25.0%
herbie shell --seed 2023195
(FPCore (x y z)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, H"
:precision binary64
(* (+ x y) (- 1.0 z)))