Comment #17 on issue 2128 by jagermeistermeister: Implement more general piecewise integration algorithm
http://code.google.com/p/sympy/issues/detail?id=2128

Feel free to implement something that lets you only do a subs in the main part of the piecewise, though are you sure that that is indeed mathematically what you want?

No, I'm not so sure anymore :)

I'll try to implement the algorithm as in the paper you linked, should be an educating experience for me :) If sympy would work like Maple with regard to integrating piecewise functions, then it definitely does as I want it to (I tried it in Maple).

Also, I'd like to improve the error message in the code, but first I need a crash course in how to commit my changes to the source code :) I found http://code.google.com/p/sympy/wiki/GitTutorials and http://code.google.com/p/sympy/wiki/SourceCode. Just a wild guess, but should I just make changes and post a patch to someone? Which branch should I implement the extra functionality on, master or polys11?

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