Vinzent Steinberg wrote: > On May 3, 9:20 pm, Akshay Srinivasan <[email protected]> > wrote: > >> 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/2cc19396a10... >>> >>> 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 ? >> > > No, all I've done yet is attached to the issue > > Riccardo's proposal looks great, however. > > Vinzent > > > Vinzent , I wanted to know how you planned to change the terms after they were returned by find. This isn't entirely obvious to me. Shouldn't the replacement part be inside find itself ?
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