[Octave-bug-tracker] [bug #50124] cplxpair produces incorrect result for second column of complex pairs

[Bill Lash]

Follow-up Comment #18, bug #50124 (project octave):

Should there also be a dependency on bug #47865
https://savannah.gnu.org/bugs/?47865 that was mentioned earlier, which seems
to be trying to address the tolerance issues.

If matlab supports try/catch I came up with a test script the ranges over a
set of "error" values for real numbers and complex pairs to try to determine
how the tolerance argument is used in each case.  

It also does a few tests to determine how the results are sorted and which
value of the complex pair is used when forcing the complex pairs to be equal. 
I am attaching the script, called tcplxpair, and the results of running it
as:

octave --no-gui tcplxpair > output

I ran it with 4.0.3, and I also downloaded the current version of the
cplxpair.m file from mercurial (which seems to also be in octave 4.2) and got
the results from that.

If someone could try it with matlab and share the results, I'll try to analyze
the differences.

(file #39566, file #39567, file #39568)
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Additional Item Attachment:

File name: tcplxpair                      Size:3 KB
File name: results4.2                     Size:3 KB
File name: results_4.0.3                  Size:3 KB


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