[Octave-bug-tracker] [bug #38170] normcdf() becomes inaccurate when package nan is loaded

[Julien Bect]

URL:
  <http://savannah.gnu.org/bugs/?38170>

                 Summary: normcdf() becomes inaccurate when package nan is
loaded
                 Project: GNU Octave
            Submitted by: jbect
            Submitted on: sam. 26 janv. 2013 09:22:12 GMT
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: Julien Bect
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.2
        Operating System: GNU/Linux

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Details:

This problem has been discussed recently on the help-octave mailing list:

http://octave.1599824.n4.nabble.com/qfunc-qfuncinv-implementation-in-communications-package-tt4649078.html#none

normcdf() becomes inaccurate when package nan is loaded


octave:1> normcdf(-10)
ans =  7.6199e-24
octave:2> pkg load nan
octave:3> normcdf(-10)
ans = 0


The problem has been reproduced under Octave 3.6.2 and 3.6.4-rc1, with nan
2.5.5.




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