Hi, Having been always interested in solving complex problems related to integration, derivatives etc, I found the GSOC subproject "continuation of risch algorithm" as something which I would like to work on.
I have the following doubts regarding the same: 1) I am presently using Bronstein's book to understand the topic. Can you please suggest other references for the same? 2) While browsing through the 2010 proposal for the same, I only got a vague idea about the parts implemented then. Can someone please clarify what was done then and what is expected out of the current project? 3) Also, I noted that integrations of the form >>e=exp(x) >>(-e**x-x+ln(x)*x + ln(x)*x*e**x)/(x*(e**x+x)**2) x x ⎛ x⎞ ⎛ x⎞ x⋅⎝ℯ ⎠ ⋅log(x) + x⋅log(x) - x - ⎝ℯ ⎠ ───────────────────────────────────── 2 ⎛ x ⎞ ⎜ ⎛ x⎞ ⎟ x⋅ ⎝ x +⎝ℯ ⎠ ⎠ >>integrate((-e**x-x+ln(x)*x + ln(x)*x*e**x)/(x*(e**x+x)**2,x)) are taking infinitely long to solve. Why doesn’t the current implementation of the risch algorithm simplify such integrals or atleast materialize the question in into an appropriate expression? Regards Chetna -- 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.