rectform strange question, was: strange question when using interface to integrate
Subject: rectform strange question, was: strange question when using interface to integrate
From: Edwin Woollett
Date: Tue, 1 Nov 2011 12:02:37 -0700
On Nov. 1, 2011, I wrote:
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>I get the question: "is 1 zero or nonzero? ",
>when the integrand is bessel_i(1,%i*x) and
>integrating over (1,inf).
>
>(%i2) nint_integrate(bessel_i(1,%i*x),x,1,inf);
>Is 1 zero or nonzero?
>
>nonzero;
>defint: integral is divergent.
>#0: nint_integrate(ue=bessel_i(1,%i*x),uvar=x,ua=1,ub=inf)
> -- an error. To debug this try: debugmode(true);
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debug printouts now show this question
comes from rectform:
----------------------------------------
Maxima 5.25.1 http://maxima.sourceforge.net
using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (a.k.a. GCL)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
2011-11-01
(%i1) display2d:false$
(%i2) rectform(%i*bessel_i(0,%i*inf));
Is 1 zero or nonzero?
nonzero;
(%o2) %i*bessel_i(0,%i*inf)
-------------------------------------
So now I need isolation from rectform
messages?
Ted Woollett