Comment #7 on issue 1704 by mattpap: [PATCH] Integration of certain composite functions fails http://code.google.com/p/sympy/issues/detail?id=1704
> Great! I bought it with some of the money I had left on my card from > GSoC. > Hopefully I can look at it over winter break, though I suspect I won't be > able > to finish it until the summer. It would be very helpful if you could implement some algorithms from this book. Personally I went through this book a long ago, but at that time there weren't many reasons for implementing too many of procedures described there, because to do this properly you need a strong basis, i.e.: polynomial manipulation algorithms and simplification/normalization functions. The first are still insufficient (e.g. lack of factorization and gcd routines over algebraic number (function) fields) and the other are almost non-existent (sad truth but truth). So actually you will spend 10 maybe 20 percent of time working on the integration toolbox and the rest on more basic tools (in this context). > Also, I am just finishing up my course in Abstract Algebra, so I think I > will > also look through the Polynomials module and hopefully most of it will > make > sense now (e.g., the Galois stuff). You see, there are two worlds: symbolic manipulation (core) and computer algebra (polys). The first one is the one a typical user sees (in a system like SymPy is). The other world is usually hidden underneath and only not that often people use it on its own. If you want to work on integration (or on any other problem of similar complexity) you need understanding of this bottom layer, where (abstract) algebra is a quite (read: very) useful toy. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-iss...@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.
