## [Maxima-bugs] [ maxima-Bugs-3158847 ] integrate: needless nounform return

 [Maxima-bugs] [ maxima-Bugs-3158847 ] integrate: needless nounform return From: SourceForge.net - 2011-01-15 13:08:03 ```Bugs item #3158847, was opened at 2011-01-15 07:08 Message generated for change (Tracker Item Submitted) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3158847&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 - Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: integrate: needless nounform return Initial Comment: integrate(log(x) * asin(2*x),x) returns an expression with a integrate nounform. But an extra evaluation eliminates the nounform: (%i14) i : integrate(log(x) * asin(2*x),x)\$ (%i15) freeof('integrate,i); (%o15) false (%i16) ev(i,integrate)\$ (%i17) freeof(integrate,%); (%o17) true Also, (%o16) is too complex-- I think an antiderivative is (log((2*sqrt(1-4*x^2))/abs(x)+2/abs(x))+(2*x*log(x)-2*x)*asin(2*x)+sqrt(1-4*x^2)*log(x)-2*sqrt(1-4*x^2))/2 No Li[2] functions needed. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3158847&group_id=4933 ```

 [Maxima-bugs] [ maxima-Bugs-3158847 ] integrate: needless nounform return From: SourceForge.net - 2011-01-15 13:08:03 ```Bugs item #3158847, was opened at 2011-01-15 07:08 Message generated for change (Tracker Item Submitted) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3158847&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 - Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: integrate: needless nounform return Initial Comment: integrate(log(x) * asin(2*x),x) returns an expression with a integrate nounform. But an extra evaluation eliminates the nounform: (%i14) i : integrate(log(x) * asin(2*x),x)\$ (%i15) freeof('integrate,i); (%o15) false (%i16) ev(i,integrate)\$ (%i17) freeof(integrate,%); (%o17) true Also, (%o16) is too complex-- I think an antiderivative is (log((2*sqrt(1-4*x^2))/abs(x)+2/abs(x))+(2*x*log(x)-2*x)*asin(2*x)+sqrt(1-4*x^2)*log(x)-2*sqrt(1-4*x^2))/2 No Li[2] functions needed. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3158847&group_id=4933 ```

No, thanks