Ondrej Certik wrote: > On Sun, May 3, 2009 at 9:25 AM, Akshay Srinivasan > <[email protected]> wrote: > >> Is there anyway I can replace functions without bothering about the >> functional arguments? I mean say I have an expression like: >> >> expr=tan(x) + tan(y) >> >> I want to be able to do something like : >> >> expr.subs(tan(),sin()/cos()) >> >> ,to get: >> >> sin(x)/cos(x) + sin(y)/cos(y) >> >> ,so that the respective functional arguments are substituted for >> automatically. >> > > See this thread: > > http://groups.google.com/group/sympy/browse_thread/thread/2cc19396a1097305/ > > and this issue: > > http://code.google.com/p/sympy/issues/detail?id=1337 > > so not yet, but this feature would be nice to have. > > Ondrej > > > > Neat, having something like this will sure make things easier. Is Vinzent still working on this ? I'll probably have to write helper functions anyway, so perhaps I could add it to Basic as well.
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