
(FPCore (x y) :precision binary64 (* (* (* x 3.0) x) y))
double code(double x, double y) {
return ((x * 3.0) * x) * y;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = ((x * 3.0d0) * x) * y
end function
public static double code(double x, double y) {
return ((x * 3.0) * x) * y;
}
def code(x, y): return ((x * 3.0) * x) * y
function code(x, y) return Float64(Float64(Float64(x * 3.0) * x) * y) end
function tmp = code(x, y) tmp = ((x * 3.0) * x) * y; end
code[x_, y_] := N[(N[(N[(x * 3.0), $MachinePrecision] * x), $MachinePrecision] * y), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(x \cdot 3\right) \cdot x\right) \cdot y
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 2 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (* (* (* x 3.0) x) y))
double code(double x, double y) {
return ((x * 3.0) * x) * y;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = ((x * 3.0d0) * x) * y
end function
public static double code(double x, double y) {
return ((x * 3.0) * x) * y;
}
def code(x, y): return ((x * 3.0) * x) * y
function code(x, y) return Float64(Float64(Float64(x * 3.0) * x) * y) end
function tmp = code(x, y) tmp = ((x * 3.0) * x) * y; end
code[x_, y_] := N[(N[(N[(x * 3.0), $MachinePrecision] * x), $MachinePrecision] * y), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(x \cdot 3\right) \cdot x\right) \cdot y
\end{array}
(FPCore (x y) :precision binary64 (* x (* y (* x 3.0))))
double code(double x, double y) {
return x * (y * (x * 3.0));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * (y * (x * 3.0d0))
end function
public static double code(double x, double y) {
return x * (y * (x * 3.0));
}
def code(x, y): return x * (y * (x * 3.0))
function code(x, y) return Float64(x * Float64(y * Float64(x * 3.0))) end
function tmp = code(x, y) tmp = x * (y * (x * 3.0)); end
code[x_, y_] := N[(x * N[(y * N[(x * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(y \cdot \left(x \cdot 3\right)\right)
\end{array}
Initial program 88.6%
associate-*l*99.6%
associate-*l*99.7%
Simplified99.7%
add-sqr-sqrt61.8%
pow261.8%
associate-*r*61.9%
*-commutative61.9%
associate-*r*61.8%
associate-*r*57.7%
sqrt-prod45.9%
sqrt-unprod26.0%
add-sqr-sqrt50.5%
Applied egg-rr50.5%
unpow250.5%
swap-sqr45.9%
add-sqr-sqrt88.5%
unpow288.5%
associate-*l*88.5%
*-commutative88.5%
unpow288.5%
associate-*r*88.6%
add-sqr-sqrt46.7%
unpow246.7%
associate-*r*52.1%
*-commutative52.1%
associate-*l*52.1%
unpow252.1%
add-sqr-sqrt99.7%
*-commutative99.7%
Applied egg-rr99.7%
(FPCore (x y) :precision binary64 (* x (* 3.0 (* x y))))
double code(double x, double y) {
return x * (3.0 * (x * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * (3.0d0 * (x * y))
end function
public static double code(double x, double y) {
return x * (3.0 * (x * y));
}
def code(x, y): return x * (3.0 * (x * y))
function code(x, y) return Float64(x * Float64(3.0 * Float64(x * y))) end
function tmp = code(x, y) tmp = x * (3.0 * (x * y)); end
code[x_, y_] := N[(x * N[(3.0 * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(3 \cdot \left(x \cdot y\right)\right)
\end{array}
Initial program 88.6%
associate-*l*99.6%
associate-*l*99.7%
Simplified99.7%
(FPCore (x y) :precision binary64 (* (* x 3.0) (* x y)))
double code(double x, double y) {
return (x * 3.0) * (x * y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = (x * 3.0d0) * (x * y)
end function
public static double code(double x, double y) {
return (x * 3.0) * (x * y);
}
def code(x, y): return (x * 3.0) * (x * y)
function code(x, y) return Float64(Float64(x * 3.0) * Float64(x * y)) end
function tmp = code(x, y) tmp = (x * 3.0) * (x * y); end
code[x_, y_] := N[(N[(x * 3.0), $MachinePrecision] * N[(x * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot 3\right) \cdot \left(x \cdot y\right)
\end{array}
herbie shell --seed 2024128
(FPCore (x y)
:name "Diagrams.Segment:$catParam from diagrams-lib-1.3.0.3, A"
:precision binary64
:alt
(! :herbie-platform default (* (* x 3) (* x y)))
(* (* (* x 3.0) x) y))