randMatrix and randomness in general in live.sympy.org

[Raúl Romero]

I have seen that when I input:

>> A = randMatrix(3,3)         (for example)

and after that I call A

>> A

A changes continuously.

How can I get a random matrix (or number) that get fixed for using it from then on?

Thanks.

[Aaron Meurer]

Unfortunately, the way SymPy currently works, it doesn't actually
store variables. It reexecutes previous inputs. The workaround here,
for SymPy Live, is to copy the result of str(A) and paste it as A, so
that it evaluates to the same thing. This won't be an issue in a
normal Python session.

This is something that we would like to fix, by the way, if anyone is
interested in working on SymPy Live.

Aaron Meurer

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