Hello all, I have implemented a module giving steps for most derivatives and some integrals for SymPy Gamma. However, it was suggested that at least some of this functionality should be added to SymPy itself. If so, what functionality should be added and how should it be integrated into SymPy?
The pull request is at https://github.com/sympy/sympy_gamma/pull/8. There is still some work left to do, which is listed in the pull request. In particular, integral forms involving the application of trigonometric identities need to be implemented. Examples: - Integral involving arctangent and exponentiation: http://sympy-gamma-li.appspot.com/input/?i=integrate%28exp%28x%29%20/%20%281%20%2B%20exp%282x%29%29%29 - Trig integral involving u-substitution: http://sympy-gamma-li.appspot.com/input/?i=integrate%28sin%28sin+x%29cos+x%29 - Trig derivative: http://sympy-gamma-li.appspot.com/input/?i=diff%28cot+sin+x%29 Implementation: The module builds a tree of rules to apply, with the first rule on the top of the tree. Examples of rules would be AddRule, ChainRule, RewriteRule, AlternativeRule (in case multiple methods exist), and so on. Separate functions apply the rules and return the resulting derivative or integral (currently derivatives and integrals are separate functions). A set of classes walks the tree and generates steps for the rules; there is no translation support but multiple output formats should work (currently only plaintext and HTML+LaTeX are implemented). The code makes use of context managers, which would need to be replaced in order to maintain Python 2.5 compatibility. Thank you, David Li -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
