Comment #33 on issue 1337 by [email protected]: find all instances in an
expression
http://code.google.com/p/sympy/issues/detail?id=1337
This is very exciting as we need this in a huge way in the quantum stuff.
Just a question, we often need to do replacements like this:
Obj1(a)*Obj2(b) ==> Obj3(a, b)
Do you think replace would handle such things or provide a route for adding
this? This seems very similar to Mathematica's Rule and Patterns:
http://reference.wolfram.com/mathematica/guide/RulesAndPatterns.html
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