Comment #9 on issue 1337 by wflynny: find all instances in an expression
http://code.google.com/p/sympy/issues/detail?id=1337
Here's a slightly better version. It does the sin/cos -> tan stuff. I'm
thinking about
making it better in a bunch of ways. One of which is to have it be of the
form
sub_in(expr, [(pat1,new1),(pat2,new2),...]),
so that it can find and replace multiple patterns in the same expression.
Additionally,
it only works on a few cases at the moment. I'm working on expanding it so
it can
handle much more.
Attachments:
sub_in.py 5.2 KB
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