-----maxima-bounces at math.utexas.edu wrote: -----
>Edwin?Woollett?wrote:
>
>>?I?am?looking?at?commutator?algebra?and?want?to
>>?pull?out?numbers?and?declared?scalars?from?the
>>?commutator?symbol?comm(x,y).
Instead of tellsimp(after) rules, you could try using the "simplifying" package. The
user documentation is in \share\contrib\simplifying.lisp. Also, the function "numfactor"
might be useful for explicit scalars (but not declared scalars).
--Barton