
(FPCore (x y) :precision binary64 (* x (+ 1.0 (* y y))))
double code(double x, double y) {
return x * (1.0 + (y * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * (1.0d0 + (y * y))
end function
public static double code(double x, double y) {
return x * (1.0 + (y * y));
}
def code(x, y): return x * (1.0 + (y * y))
function code(x, y) return Float64(x * Float64(1.0 + Float64(y * y))) end
function tmp = code(x, y) tmp = x * (1.0 + (y * y)); end
code[x_, y_] := N[(x * N[(1.0 + N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 + y \cdot y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 5 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (* x (+ 1.0 (* y y))))
double code(double x, double y) {
return x * (1.0 + (y * y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x * (1.0d0 + (y * y))
end function
public static double code(double x, double y) {
return x * (1.0 + (y * y));
}
def code(x, y): return x * (1.0 + (y * y))
function code(x, y) return Float64(x * Float64(1.0 + Float64(y * y))) end
function tmp = code(x, y) tmp = x * (1.0 + (y * y)); end
code[x_, y_] := N[(x * N[(1.0 + N[(y * y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 + y \cdot y\right)
\end{array}
(FPCore (x y) :precision binary64 (+ x (* y (* y x))))
double code(double x, double y) {
return x + (y * (y * x));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x + (y * (y * x))
end function
public static double code(double x, double y) {
return x + (y * (y * x));
}
def code(x, y): return x + (y * (y * x))
function code(x, y) return Float64(x + Float64(y * Float64(y * x))) end
function tmp = code(x, y) tmp = x + (y * (y * x)); end
code[x_, y_] := N[(x + N[(y * N[(y * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \left(y \cdot x\right)
\end{array}
Initial program 92.2%
distribute-rgt-in92.3%
*-un-lft-identity92.3%
+-commutative92.3%
associate-*l*99.9%
Applied egg-rr99.9%
Final simplification99.9%
(FPCore (x y) :precision binary64 (if (<= (* y y) 50000000000000.0) (* x (+ (* y y) 1.0)) (* y (* y x))))
double code(double x, double y) {
double tmp;
if ((y * y) <= 50000000000000.0) {
tmp = x * ((y * y) + 1.0);
} else {
tmp = y * (y * x);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y * y) <= 50000000000000.0d0) then
tmp = x * ((y * y) + 1.0d0)
else
tmp = y * (y * x)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y * y) <= 50000000000000.0) {
tmp = x * ((y * y) + 1.0);
} else {
tmp = y * (y * x);
}
return tmp;
}
def code(x, y): tmp = 0 if (y * y) <= 50000000000000.0: tmp = x * ((y * y) + 1.0) else: tmp = y * (y * x) return tmp
function code(x, y) tmp = 0.0 if (Float64(y * y) <= 50000000000000.0) tmp = Float64(x * Float64(Float64(y * y) + 1.0)); else tmp = Float64(y * Float64(y * x)); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y * y) <= 50000000000000.0) tmp = x * ((y * y) + 1.0); else tmp = y * (y * x); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[N[(y * y), $MachinePrecision], 50000000000000.0], N[(x * N[(N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision], N[(y * N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \cdot y \leq 50000000000000:\\
\;\;\;\;x \cdot \left(y \cdot y + 1\right)\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(y \cdot x\right)\\
\end{array}
\end{array}
if (*.f64 y y) < 5e13Initial program 100.0%
if 5e13 < (*.f64 y y) Initial program 83.4%
flip3-+17.0%
associate-*r/13.9%
metadata-eval13.9%
pow213.9%
pow-pow13.9%
metadata-eval13.9%
metadata-eval13.9%
*-un-lft-identity13.9%
associate-+r-13.9%
pow213.9%
pow213.9%
pow-prod-up14.0%
metadata-eval14.0%
Applied egg-rr14.0%
associate-/l*17.0%
Simplified17.0%
Taylor expanded in y around inf 83.2%
unpow283.2%
Simplified83.2%
associate-/r/83.4%
/-rgt-identity83.4%
associate-*r*99.9%
Applied egg-rr99.9%
Final simplification99.9%
(FPCore (x y) :precision binary64 (if (<= (* y y) 1.0) x (* x (* y y))))
double code(double x, double y) {
double tmp;
if ((y * y) <= 1.0) {
tmp = x;
} else {
tmp = x * (y * y);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y * y) <= 1.0d0) then
tmp = x
else
tmp = x * (y * y)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y * y) <= 1.0) {
tmp = x;
} else {
tmp = x * (y * y);
}
return tmp;
}
def code(x, y): tmp = 0 if (y * y) <= 1.0: tmp = x else: tmp = x * (y * y) return tmp
function code(x, y) tmp = 0.0 if (Float64(y * y) <= 1.0) tmp = x; else tmp = Float64(x * Float64(y * y)); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y * y) <= 1.0) tmp = x; else tmp = x * (y * y); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[N[(y * y), $MachinePrecision], 1.0], x, N[(x * N[(y * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \cdot y \leq 1:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(y \cdot y\right)\\
\end{array}
\end{array}
if (*.f64 y y) < 1Initial program 100.0%
Taylor expanded in y around 0 99.2%
if 1 < (*.f64 y y) Initial program 84.1%
Taylor expanded in y around inf 81.9%
unpow281.9%
Simplified81.9%
Final simplification90.7%
(FPCore (x y) :precision binary64 (if (<= (* y y) 0.05) x (* y (* y x))))
double code(double x, double y) {
double tmp;
if ((y * y) <= 0.05) {
tmp = x;
} else {
tmp = y * (y * x);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if ((y * y) <= 0.05d0) then
tmp = x
else
tmp = y * (y * x)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if ((y * y) <= 0.05) {
tmp = x;
} else {
tmp = y * (y * x);
}
return tmp;
}
def code(x, y): tmp = 0 if (y * y) <= 0.05: tmp = x else: tmp = y * (y * x) return tmp
function code(x, y) tmp = 0.0 if (Float64(y * y) <= 0.05) tmp = x; else tmp = Float64(y * Float64(y * x)); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if ((y * y) <= 0.05) tmp = x; else tmp = y * (y * x); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[N[(y * y), $MachinePrecision], 0.05], x, N[(y * N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \cdot y \leq 0.05:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(y \cdot x\right)\\
\end{array}
\end{array}
if (*.f64 y y) < 0.050000000000000003Initial program 100.0%
Taylor expanded in y around 0 99.2%
if 0.050000000000000003 < (*.f64 y y) Initial program 84.1%
flip3-+20.9%
associate-*r/18.0%
metadata-eval18.0%
pow218.0%
pow-pow18.0%
metadata-eval18.0%
metadata-eval18.0%
*-un-lft-identity18.0%
associate-+r-18.0%
pow218.0%
pow218.0%
pow-prod-up18.0%
metadata-eval18.0%
Applied egg-rr18.0%
associate-/l*20.9%
Simplified20.9%
Taylor expanded in y around inf 81.8%
unpow281.8%
Simplified81.8%
associate-/r/81.9%
/-rgt-identity81.9%
associate-*r*97.6%
Applied egg-rr97.6%
Final simplification98.4%
(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 92.2%
Taylor expanded in y around 0 53.2%
Final simplification53.2%
(FPCore (x y) :precision binary64 (+ x (* (* x y) y)))
double code(double x, double y) {
return x + ((x * y) * y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = x + ((x * y) * y)
end function
public static double code(double x, double y) {
return x + ((x * y) * y);
}
def code(x, y): return x + ((x * y) * y)
function code(x, y) return Float64(x + Float64(Float64(x * y) * y)) end
function tmp = code(x, y) tmp = x + ((x * y) * y); end
code[x_, y_] := N[(x + N[(N[(x * y), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + \left(x \cdot y\right) \cdot y
\end{array}
herbie shell --seed 2023275
(FPCore (x y)
:name "Numeric.Integration.TanhSinh:everywhere from integration-0.2.1"
:precision binary64
:herbie-target
(+ x (* (* x y) y))
(* x (+ 1.0 (* y y))))