
(FPCore (x y) :precision binary64 (sqrt (fabs (- x y))))
double code(double x, double y) {
return sqrt(fabs((x - y)));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = sqrt(abs((x - y)))
end function
public static double code(double x, double y) {
return Math.sqrt(Math.abs((x - y)));
}
def code(x, y): return math.sqrt(math.fabs((x - y)))
function code(x, y) return sqrt(abs(Float64(x - y))) end
function tmp = code(x, y) tmp = sqrt(abs((x - y))); end
code[x_, y_] := N[Sqrt[N[Abs[N[(x - y), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\sqrt{\left|x - y\right|}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 4 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y) :precision binary64 (sqrt (fabs (- x y))))
double code(double x, double y) {
return sqrt(fabs((x - y)));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = sqrt(abs((x - y)))
end function
public static double code(double x, double y) {
return Math.sqrt(Math.abs((x - y)));
}
def code(x, y): return math.sqrt(math.fabs((x - y)))
function code(x, y) return sqrt(abs(Float64(x - y))) end
function tmp = code(x, y) tmp = sqrt(abs((x - y))); end
code[x_, y_] := N[Sqrt[N[Abs[N[(x - y), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\sqrt{\left|x - y\right|}
\end{array}
(FPCore (x y) :precision binary64 (sqrt (fabs (- y x))))
double code(double x, double y) {
return sqrt(fabs((y - x)));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = sqrt(abs((y - x)))
end function
public static double code(double x, double y) {
return Math.sqrt(Math.abs((y - x)));
}
def code(x, y): return math.sqrt(math.fabs((y - x)))
function code(x, y) return sqrt(abs(Float64(y - x))) end
function tmp = code(x, y) tmp = sqrt(abs((y - x))); end
code[x_, y_] := N[Sqrt[N[Abs[N[(y - x), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\sqrt{\left|y - x\right|}
\end{array}
Initial program 100.0%
Final simplification100.0%
(FPCore (x y) :precision binary64 (if (<= y -5e-310) (sqrt (- y)) (sqrt y)))
double code(double x, double y) {
double tmp;
if (y <= -5e-310) {
tmp = sqrt(-y);
} else {
tmp = sqrt(y);
}
return tmp;
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8) :: tmp
if (y <= (-5d-310)) then
tmp = sqrt(-y)
else
tmp = sqrt(y)
end if
code = tmp
end function
public static double code(double x, double y) {
double tmp;
if (y <= -5e-310) {
tmp = Math.sqrt(-y);
} else {
tmp = Math.sqrt(y);
}
return tmp;
}
def code(x, y): tmp = 0 if y <= -5e-310: tmp = math.sqrt(-y) else: tmp = math.sqrt(y) return tmp
function code(x, y) tmp = 0.0 if (y <= -5e-310) tmp = sqrt(Float64(-y)); else tmp = sqrt(y); end return tmp end
function tmp_2 = code(x, y) tmp = 0.0; if (y <= -5e-310) tmp = sqrt(-y); else tmp = sqrt(y); end tmp_2 = tmp; end
code[x_, y_] := If[LessEqual[y, -5e-310], N[Sqrt[(-y)], $MachinePrecision], N[Sqrt[y], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -5 \cdot 10^{-310}:\\
\;\;\;\;\sqrt{-y}\\
\mathbf{else}:\\
\;\;\;\;\sqrt{y}\\
\end{array}
\end{array}
if y < -4.999999999999985e-310Initial program 100.0%
Taylor expanded in x around 0
mul-1-negN/A
lower-neg.f6448.8
Applied rewrites48.8%
lift-neg.f64N/A
neg-fabsN/A
lift-neg.f64N/A
remove-double-negN/A
unpow1N/A
metadata-evalN/A
pow-divN/A
pow2N/A
div-fabsN/A
neg-fabsN/A
cube-negN/A
lift-neg.f64N/A
sqr-powN/A
fabs-sqrN/A
sqr-powN/A
lift-neg.f64N/A
cube-negN/A
neg-sub0N/A
metadata-evalN/A
fabs-sqrN/A
+-lft-identityN/A
+-commutativeN/A
distribute-rgt-outN/A
+-lft-identityN/A
metadata-evalN/A
flip3--N/A
neg-sub0N/A
lift-neg.f6448.8
Applied rewrites48.8%
if -4.999999999999985e-310 < y Initial program 100.0%
Taylor expanded in x around 0
mul-1-negN/A
lower-neg.f6446.7
Applied rewrites46.7%
lift-neg.f64N/A
neg-fabsN/A
lift-neg.f64N/A
remove-double-negN/A
unpow1N/A
metadata-evalN/A
pow-divN/A
pow2N/A
div-fabsN/A
neg-fabsN/A
cube-negN/A
lift-neg.f64N/A
sqr-powN/A
fabs-sqrN/A
unpow-prod-downN/A
lift-neg.f64N/A
lift-neg.f64N/A
sqr-negN/A
pow-prod-downN/A
sqr-powN/A
fabs-sqrN/A
pow2N/A
pow-divN/A
metadata-evalN/A
unpow146.7
Applied rewrites46.7%
(FPCore (x y) :precision binary64 (sqrt (fabs y)))
double code(double x, double y) {
return sqrt(fabs(y));
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = sqrt(abs(y))
end function
public static double code(double x, double y) {
return Math.sqrt(Math.abs(y));
}
def code(x, y): return math.sqrt(math.fabs(y))
function code(x, y) return sqrt(abs(y)) end
function tmp = code(x, y) tmp = sqrt(abs(y)); end
code[x_, y_] := N[Sqrt[N[Abs[y], $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\sqrt{\left|y\right|}
\end{array}
Initial program 100.0%
Taylor expanded in x around 0
mul-1-negN/A
lower-neg.f6447.7
Applied rewrites47.7%
Final simplification47.7%
(FPCore (x y) :precision binary64 (sqrt y))
double code(double x, double y) {
return sqrt(y);
}
real(8) function code(x, y)
real(8), intent (in) :: x
real(8), intent (in) :: y
code = sqrt(y)
end function
public static double code(double x, double y) {
return Math.sqrt(y);
}
def code(x, y): return math.sqrt(y)
function code(x, y) return sqrt(y) end
function tmp = code(x, y) tmp = sqrt(y); end
code[x_, y_] := N[Sqrt[y], $MachinePrecision]
\begin{array}{l}
\\
\sqrt{y}
\end{array}
Initial program 100.0%
Taylor expanded in x around 0
mul-1-negN/A
lower-neg.f6447.7
Applied rewrites47.7%
lift-neg.f64N/A
neg-fabsN/A
lift-neg.f64N/A
remove-double-negN/A
unpow1N/A
metadata-evalN/A
pow-divN/A
pow2N/A
div-fabsN/A
neg-fabsN/A
cube-negN/A
lift-neg.f64N/A
sqr-powN/A
fabs-sqrN/A
unpow-prod-downN/A
lift-neg.f64N/A
lift-neg.f64N/A
sqr-negN/A
pow-prod-downN/A
sqr-powN/A
fabs-sqrN/A
pow2N/A
pow-divN/A
metadata-evalN/A
unpow122.4
Applied rewrites22.4%
herbie shell --seed 2024216
(FPCore (x y)
:name "Optimisation.CirclePacking:place from circle-packing-0.1.0.4, C"
:precision binary64
(sqrt (fabs (- x y))))