[Octave-bug-tracker] [bug #44867] Bessel functions scaled even if opt=0

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?44867>

                 Summary: Bessel functions scaled even if opt=0
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Fri 17 Apr 2015 05:34:55 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
             Assigned to: None
         Originator Name: Byron Boulton
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.2
        Operating System: GNU/Linux

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Details:

besselj, bessely, besseli, besselk, and besselh all have an "opt" parameter,
which if present causes the bessel* functions to return a scaled value. This
is true whether "opt" has the value 0, 1, 'hokuspokus', or _anything_.

Attached is a small script which demonstrates besselj getting scaled by
providing "opt" values of 0, 1, and 'hokuspokus'.

It would make more sense for this to be implemented the way it is in MATLAB so
that "opt" must be a 0 or a 1. If 0, don't scale; if 1, scale.



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File Attachments:


-------------------------------------------------------
Date: Fri 17 Apr 2015 05:34:55 PM UTC  Name: scale_besselj.m  Size: 130B   By:
None
Script demonstrating odd scaling behavior of bessel* functions.
<http://savannah.gnu.org/bugs/download.php?file_id=33705>

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