Bugs item #956730, was opened at 20040519 10:04
Message generated for change (Comment added) made by rtoy
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Category: Lisp Core
Group: None
>Status: Closed
Resolution: Fixed
Priority: 5
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: integrate(x^n,x,0,inf) => sinrx error
Initial Comment:
integrate(x^n,x,0,inf);
Is n positive, negative, or zero? neg;
Is n + 1 positive, negative, or zero? neg;
Is n an integer? y;
Error: $x is not of type LIST.
Error signalled by SINRX.
The integral is of course divergent, but it should not be
getting an internal error. Why does it even ask whether
n is integral? Strangely, with n noninteger, it correctly
diverges.

>Comment By: Raymond Toy (rtoy)
Date: 20060313 10:36
Message:
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Hmm. Let's actually close this bug.

Comment By: Robert Dodier (robert_dodier)
Date: 20050821 23:16
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Looks to me like it's been fixed (verified result on
5.9.1cvs / GCL 2.6.6 and clisp 2.33, both on Linux). Closing
this report.

Comment By: Barton Willis (willisbl)
Date: 20041005 14:58
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It seems that this bug has been fixed.
(%i2) integrate(x^n,x,0,inf);
Is n positive, negative, or zero?
neg;Is n + 1 positive, negative, or zero?
neg;Is n an integer?
yes;Integral is divergent
 an error. Quitting. To debug this try DEBUGMODE(TRUE);
(%i3) build_info();
Maxima version: 5.9.1.1cvs
Maxima build date: 9:34 10/4/2004
host type: i686pcmingw32
lispimplementationtype: Kyoto Common Lisp
lispimplementationversion: GCL 2.6.5

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