[Maxima-bugs] [ maxima-Bugs-3512437 ] wrong limit

[SourceForge.net <no...@so...>]

Bugs item #3512437, was opened at 2012-03-28 08:44
Message generated for change (Tracker Item Submitted) made by aleksasd
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3512437&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: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Aleksas (aleksasd)
Assigned to: Nobody/Anonymous (nobody)
Summary: wrong limit

Initial Comment:
(%i1) f:((9*x)^(1/3)-3)/(sqrt(3+x)-sqrt(2*x));
(%o1) (9^(1/3)*x^(1/3)-3)/(sqrt(x+3)-sqrt(2)*sqrt(x))

 wrong:
(%i2) limit(f,x,3);
(%o2) 0

 correct:
(%i3) algebraic:true;
(%o3) true
(%i4) radcan(f);
(%o4) -((3^(2/3)*x^(1/3)-3)*sqrt(x+3)+sqrt(2)*3^(2/3)*x^(5/6)-3*sqrt(2)*sqrt(x))/(x-3)
(%i5) limit(%,x,3);
(%o5) -(sqrt(6)+sqrt(2)*sqrt(3))/3
(%i6) radcan(%);
(%o6) -2^(3/2)/sqrt(3)

Aleksas D

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3512437&group_id=4933