From: SourceForge.net <noreply@so...>  20060212 19:16:08

Bugs item #1376860, was opened at 20051208 22:53 Message generated for change (Comment added) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1376860&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core Group: None Status: Open Resolution: None Priority: 5 Submitted By: Raymond Toy (rtoy) Assigned to: Nobody/Anonymous (nobody) Summary: specint(gammaincomplete(v,a*t)*exp(p*t),t) seems wrong Initial Comment: (%i12) assume(v>0,p>0); (%o12) [v>0,p>0] (%i13) specint(gammaincomplete(v,a*t)*exp(p*t),t); SIMP2F1WILLCONTINUEIN (%o13) a^v*(p+a)^(v1)*gamma(v+1)*%f[2,1]([v+1,3/2],[2],p/(p+a)) Compare this with (%i14) specint(gammagreek(v,a*t)*exp(p*t),t); (%o14) a^v*p^(v1)*gamma(v+1)/((a/p+1)^v*v) This matches formula 34, p 179 in Tables of Transforms. Considering gammaincomplete = gamma(n)gammagreek, the expression for gammaincomplete seems wrong. It might still be right if the hypergeometric function simplifies, but maxima can't, and I can't think of any way to simplify it either.  >Comment By: Raymond Toy (rtoy) Date: 20060212 14:15 Message: Logged In: YES user_id=28849 The fix for transforming %w causes this return the result in terms of the associated Legendre function Q. Somewhat better, but I do not know if this is equivalent.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1376860&group_id=4933 