
(FPCore (x y) :precision binary64 (* (* x y) (- 1.0 y)))
double code(double x, double y) {
return (x * y) * (1.0 - y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * y) * (1.0d0 - y)
end function
public static double code(double x, double y) {
return (x * y) * (1.0 - y);
}
def code(x, y): return (x * y) * (1.0 - y)
function code(x, y) return Float64(Float64(x * y) * Float64(1.0 - y)) end
function tmp = code(x, y) tmp = (x * y) * (1.0 - y); end
code[x_, y_] := N[(N[(x * y), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot y\right) \cdot \left(1 - y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (* (* x y) (- 1.0 y)))
double code(double x, double y) {
return (x * y) * (1.0 - y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * y) * (1.0d0 - y)
end function
public static double code(double x, double y) {
return (x * y) * (1.0 - y);
}
def code(x, y): return (x * y) * (1.0 - y)
function code(x, y) return Float64(Float64(x * y) * Float64(1.0 - y)) end
function tmp = code(x, y) tmp = (x * y) * (1.0 - y); end
code[x_, y_] := N[(N[(x * y), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot y\right) \cdot \left(1 - y\right)
\end{array}
(FPCore (x y) :precision binary64 (* (* x y) (- 1.0 y)))
double code(double x, double y) {
return (x * y) * (1.0 - y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * y) * (1.0d0 - y)
end function
public static double code(double x, double y) {
return (x * y) * (1.0 - y);
}
def code(x, y): return (x * y) * (1.0 - y)
function code(x, y) return Float64(Float64(x * y) * Float64(1.0 - y)) end
function tmp = code(x, y) tmp = (x * y) * (1.0 - y); end
code[x_, y_] := N[(N[(x * y), $MachinePrecision] * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot y\right) \cdot \left(1 - y\right)
\end{array}
Initial program 99.8%
(FPCore (x y) :precision binary64 (if (or (<= y -1.0) (not (<= y 1.0))) (* y (* x (- y))) (* x y)))
double code(double x, double y) {
double tmp;
if ((y <= -1.0) || !(y <= 1.0)) {
tmp = y * (x * -y);
} else {
tmp = x * y;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-1.0d0)) .or. (.not. (y <= 1.0d0))) then
tmp = y * (x * -y)
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -1.0) || !(y <= 1.0)) {
tmp = y * (x * -y);
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -1.0) or not (y <= 1.0): tmp = y * (x * -y) else: tmp = x * y return tmp
function code(x, y) tmp = 0.0 if ((y <= -1.0) || !(y <= 1.0)) tmp = Float64(y * Float64(x * Float64(-y))); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -1.0) || ~((y <= 1.0))) tmp = y * (x * -y); else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -1.0], N[Not[LessEqual[y, 1.0]], $MachinePrecision]], N[(y * N[(x * (-y)), $MachinePrecision]), $MachinePrecision], N[(x * y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 1\right):\\
\;\;\;\;y \cdot \left(x \cdot \left(-y\right)\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if y < -1 or 1 < y Initial program 99.7%
Taylor expanded in y around inf 96.7%
neg-mul-196.7%
Simplified96.7%
if -1 < y < 1Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
Taylor expanded in y around 0 96.9%
Final simplification96.8%
(FPCore (x y) :precision binary64 (if (or (<= y -1.0) (not (<= y 1.0))) (* x (* y (- y))) (* x y)))
double code(double x, double y) {
double tmp;
if ((y <= -1.0) || !(y <= 1.0)) {
tmp = x * (y * -y);
} else {
tmp = x * y;
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y <= (-1.0d0)) .or. (.not. (y <= 1.0d0))) then
tmp = x * (y * -y)
else
tmp = x * y
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y <= -1.0) || !(y <= 1.0)) {
tmp = x * (y * -y);
} else {
tmp = x * y;
}
return tmp;
}
def code(x, y): tmp = 0 if (y <= -1.0) or not (y <= 1.0): tmp = x * (y * -y) else: tmp = x * y return tmp
function code(x, y) tmp = 0.0 if ((y <= -1.0) || !(y <= 1.0)) tmp = Float64(x * Float64(y * Float64(-y))); else tmp = Float64(x * y); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y <= -1.0) || ~((y <= 1.0))) tmp = x * (y * -y); else tmp = x * y; end tmp_2 = tmp; end
code[x_, y_] := If[Or[LessEqual[y, -1.0], N[Not[LessEqual[y, 1.0]], $MachinePrecision]], N[(x * N[(y * (-y)), $MachinePrecision]), $MachinePrecision], N[(x * y), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 1\right):\\
\;\;\;\;x \cdot \left(y \cdot \left(-y\right)\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot y\\
\end{array}
\end{array}
if y < -1 or 1 < y Initial program 99.7%
associate-*l*85.0%
Simplified85.0%
Taylor expanded in y around inf 82.0%
neg-mul-196.7%
Simplified82.0%
if -1 < y < 1Initial program 100.0%
associate-*l*100.0%
Simplified100.0%
Taylor expanded in y around 0 96.9%
Final simplification90.3%
(FPCore (x y) :precision binary64 (if (<= y 1.2e+154) (* x (* y (- 1.0 y))) (* y (* x (- y)))))
double code(double x, double y) {
double tmp;
if (y <= 1.2e+154) {
tmp = x * (y * (1.0 - y));
} else {
tmp = y * (x * -y);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= 1.2d+154) then
tmp = x * (y * (1.0d0 - y))
else
tmp = y * (x * -y)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (y <= 1.2e+154) {
tmp = x * (y * (1.0 - y));
} else {
tmp = y * (x * -y);
}
return tmp;
}
def code(x, y): tmp = 0 if y <= 1.2e+154: tmp = x * (y * (1.0 - y)) else: tmp = y * (x * -y) return tmp
function code(x, y) tmp = 0.0 if (y <= 1.2e+154) tmp = Float64(x * Float64(y * Float64(1.0 - y))); else tmp = Float64(y * Float64(x * Float64(-y))); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (y <= 1.2e+154) tmp = x * (y * (1.0 - y)); else tmp = y * (x * -y); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[y, 1.2e+154], N[(x * N[(y * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(y * N[(x * (-y)), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq 1.2 \cdot 10^{+154}:\\
\;\;\;\;x \cdot \left(y \cdot \left(1 - y\right)\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(x \cdot \left(-y\right)\right)\\
\end{array}
\end{array}
if y < 1.20000000000000007e154Initial program 99.8%
associate-*l*98.2%
Simplified98.2%
if 1.20000000000000007e154 < y Initial program 99.8%
Taylor expanded in y around inf 99.8%
neg-mul-199.8%
Simplified99.8%
Final simplification98.4%
(FPCore (x y) :precision binary64 (* y (- x (* x y))))
double code(double x, double y) {
return y * (x - (x * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = y * (x - (x * y))
end function
public static double code(double x, double y) {
return y * (x - (x * y));
}
def code(x, y): return y * (x - (x * y))
function code(x, y) return Float64(y * Float64(x - Float64(x * y))) end
function tmp = code(x, y) tmp = y * (x - (x * y)); end
code[x_, y_] := N[(y * N[(x - N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y \cdot \left(x - x \cdot y\right)
\end{array}
Initial program 99.8%
associate-*l*93.4%
Simplified93.4%
Taylor expanded in y around 0 99.8%
associate-*r*99.8%
mul-1-neg99.8%
Simplified99.8%
distribute-lft-neg-out99.8%
unsub-neg99.8%
*-commutative99.8%
Applied egg-rr99.8%
Final simplification99.8%
(FPCore (x y) :precision binary64 (* x y))
double code(double x, double y) {
return x * y;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * y
end function
public static double code(double x, double y) {
return x * y;
}
def code(x, y): return x * y
function code(x, y) return Float64(x * y) end
function tmp = code(x, y) tmp = x * y; end
code[x_, y_] := N[(x * y), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y
\end{array}
Initial program 99.8%
associate-*l*93.4%
Simplified93.4%
Taylor expanded in y around 0 60.8%
(FPCore (x y) :precision binary64 x)
double code(double x, double y) {
return x;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x
end function
public static double code(double x, double y) {
return x;
}
def code(x, y): return x
function code(x, y) return x end
function tmp = code(x, y) tmp = x; end
code[x_, y_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 99.8%
associate-*l*93.4%
Simplified93.4%
associate-*r*99.8%
flip--93.3%
associate-*r/90.1%
metadata-eval90.1%
pow290.1%
+-commutative90.1%
Applied egg-rr90.1%
associate-*l*88.6%
associate-/l*90.7%
sub-neg90.7%
unpow290.7%
distribute-rgt-neg-out90.7%
distribute-lft-in90.7%
*-rgt-identity90.7%
associate-*l*90.7%
sqr-neg90.7%
unpow390.7%
cube-neg90.7%
unsub-neg90.7%
Simplified90.7%
Taylor expanded in x around 0 88.6%
Taylor expanded in y around inf 42.0%
Taylor expanded in y around 0 3.0%
herbie shell --seed 2024170
(FPCore (x y)
:name "Statistics.Distribution.Binomial:$cvariance from math-functions-0.1.5.2"
:precision binary64
(* (* x y) (- 1.0 y)))