[Maxima-bugs] [ maxima-Bugs-1498047 ] limit(a/n,n,inf);

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Bugs item #1498047, was opened at 2006-05-31 04:59
Message generated for change (Comment added) made by dgildea
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Category: Lisp Core - Limit
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: limit(a/n,n,inf);

Initial Comment:
(%1) limit(a/n,n,inf);
Is a positive, negative, or zero?


In this case the question is not neccesery, because the
result does not depend on "a". It is zero in every case.
Yes, it is not an error, but strange.


--------------------------------------------------------
Maxima version: 5.9.2
Maxima build date: 5:40 11/17/2005
host type: i486-slackware-linux-gnu
lisp-implementation-type: CLISP
lisp-implementation-version: 2.35 (2005-08-29) (built
on Gavathi.manchali.org [192.168.1.2])
--------------------------------------------------------




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>Comment By: Dan Gildea (dgildea)
Date: 2009-02-15 15:59

Message:
As of limit rev 1.63

(%i2) limit(a/n, n, inf);
(%o2) 0
(%i3) limit(a*n, n, inf);
(%o3) infinity
(%i4) limit(a*n, n, 0);
(%o4) 0

All three commands above used to ask whether a is pos, neg, or zero.
For limit(a*n, n, inf) the sign of a would determine whether result is inf
or minf.



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