simplify_indexed() didn't fully simplify the expressions

[Yong Xiao]

Hi!

I am using GiNaC1.1.0

It seems that for some expression(suppose it's defined as e1) 
simplify_indexed() doesn't do simplification fully. However, if I define 
another ex objec tmp = e1, and e1.simplify_indexed() will give a more 
simple expression which, although, is still not of the simplest form.
Anyone knows a more efficient way?

Another problem I met is that when I simplify an expression which is 
composed of 240 terms, where every term is a simple product of indexed 
objects, the complilation will stop, saying "out of memory". I don't 
think that GiNaC can't handle such expressions. Anything wrong?