No support for simplifying sqrt()

[erny123]

Something simple:

@variables A
test = 1//2 * sqrt(4*A)
Symbolics.simplify(test, expand=true)

Outputs:
\begin{equation}
\frac{1}{2} \sqrt{4 A}
\end{equation}

or
$\frac{1}{2} \sqrt{4 A}$

If instead, one uses ^(1/2) rather than the square root then it seems to simplify on its own:

@variables A
test = 1//2 * (4*A)^(1/2)

Output:
\begin{equation}
\frac{1}{2} \sqrt{4 A}
\end{equation}

$ A^{0.5}$
I think there should be a way for Symbolics to either parse and convert sqrt to ^(1/2) or for there to be an option in the simplify function

[ohno]

I also think that it should be supported. This issue is related to an old issue #852.