
(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 4 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 (* x (* y 3.0))))
double code(double x, double y) {
return x * (x * (y * 3.0));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * (x * (y * 3.0d0))
end function
public static double code(double x, double y) {
return x * (x * (y * 3.0));
}
def code(x, y): return x * (x * (y * 3.0))
function code(x, y) return Float64(x * Float64(x * Float64(y * 3.0))) end
function tmp = code(x, y) tmp = x * (x * (y * 3.0)); end
code[x_, y_] := N[(x * N[(x * N[(y * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(x \cdot \left(y \cdot 3\right)\right)
\end{array}
Initial program 89.3%
associate-*l*99.7%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 89.2%
unpow289.2%
*-commutative89.2%
rem-exp-log40.9%
*-rgt-identity40.9%
associate-*l*45.6%
*-rgt-identity45.6%
rem-exp-log99.7%
Simplified99.7%
add-cube-cbrt99.0%
pow399.0%
Applied egg-rr99.0%
add-log-exp60.1%
*-un-lft-identity60.1%
log-prod60.1%
metadata-eval60.1%
add-log-exp99.0%
*-commutative99.0%
unpow399.0%
add-cube-cbrt99.7%
associate-*l*99.8%
associate-*l*99.8%
Applied egg-rr99.8%
Final simplification99.8%
(FPCore (x y) :precision binary64 (* 3.0 (* x (* x y))))
double code(double x, double y) {
return 3.0 * (x * (x * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = 3.0d0 * (x * (x * y))
end function
public static double code(double x, double y) {
return 3.0 * (x * (x * y));
}
def code(x, y): return 3.0 * (x * (x * y))
function code(x, y) return Float64(3.0 * Float64(x * Float64(x * y))) end
function tmp = code(x, y) tmp = 3.0 * (x * (x * y)); end
code[x_, y_] := N[(3.0 * N[(x * N[(x * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
3 \cdot \left(x \cdot \left(x \cdot y\right)\right)
\end{array}
Initial program 89.3%
associate-*l*99.7%
associate-*l*99.8%
Simplified99.8%
Taylor expanded in x around 0 89.2%
unpow289.2%
*-commutative89.2%
rem-exp-log40.9%
*-rgt-identity40.9%
associate-*l*45.6%
*-rgt-identity45.6%
rem-exp-log99.7%
Simplified99.7%
Final simplification99.7%
(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 89.3%
associate-*l*99.7%
associate-*l*99.8%
Simplified99.8%
Final simplification99.8%
(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 89.3%
*-commutative89.3%
associate-*l*99.8%
Simplified99.8%
Final simplification99.8%
(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]), $MachinePrecision]
\begin{array}{l}
\\
\left(x \cdot 3\right) \cdot \left(x \cdot y\right)
\end{array}
herbie shell --seed 2023266
(FPCore (x y)
:name "Diagrams.Segment:$catParam from diagrams-lib-1.3.0.3, A"
:precision binary64
:herbie-target
(* (* x 3.0) (* x y))
(* (* (* x 3.0) x) y))