From: SourceForge.net <no...@so...> - 2006-04-30 17:50:14
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Bugs item #1479409, was opened at 2006-04-30 12:50 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1479409&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: Share Libraries Group: None Status: Open Resolution: None Priority: 3 Submitted By: Barton Willis (willisbl) Assigned to: Barton Willis (willisbl) Summary: Maxima thinks pochhammer is real Initial Comment: (%i1) load("orthopoly")$ (%i2) pochhammer(1+%i*2,n); (%o2) pochhammer(2*%i+1,n) (%i3) imagpart(%); (%o3) 0 <--- Bogus! Also, conjugate should commute with pochhammer, but it doesn't: (%i4) conjugate(%o2); (%o4) conjugate(pochhammer(2*%i+1,n)) Finally, the simplification (%i5) pochhammer(x,-n); (%o5) 1/((-1)^n*pochhammer(1-x,n)) is not wrong, but goofy. (I think this simplification should only happen when n is an positive integer -- not declared to be an integer or assumed positive.) I have fixes for all these things that I'll submit after testing. My fixes will convert pochhammer to a simplifying function. Barton ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1479409&group_id=4933 |