Updates:
Cc: Vinzent.Steinberg asmeurer Ronan.Lamy
Comment #111 on issue 1598 by smichr: New polynomials manipulation module
http://code.google.com/p/sympy/issues/detail?id=1598
Where should we discuss polys8 ans polys related issues? I wanted to point
out that I
have an alternative to the unevaluated expressions currently returned from
factor,
sqf (and perhaps terms_gcd). In 1766 I use a function called mul2 (in
mul.py) that
sets a flag that causes the 2-arg mul code to be skipped in mul's flatten.
In
addition, to avoid getting a cached value for an expression, it uses a
unique dummy
variable to compute a new mul every time it is called so cache doesn't have
to be
cleared just to get the non-distributed 2-arg mul. You can see how I
applied it to
the factor, sqf and terms_gcd so that when someone really *wants* the
constant pulled
out they can do so, otherwise the normal 2-arg mul behavior that several
pieces of
sympy depend on is used. It's a little rough now, but is open for feedback
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