Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 3710 by [email protected]: shallow expansion feature/bug
http://code.google.com/p/sympy/issues/detail?id=3710
(1 + x*(x + y)).expand(deep=False)
x*(x + y) + 1
I thought that not-deep meant do something on all args of Add and Mul. But
in this example, an unexpanded result is obtained because expand_mul is not
run on the arguments of the Add. This could be as easy to fix as adding
`or expr.is_Add or expr.is_Mul` to the end of the line in Expr.expand that
starts with `if deep and`.
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