[Octave-bug-tracker] [bug #48288] quaternion package: logarithm of a quaternion with only a positive real component

[Mike Miller]

Update of bug #48288 (project octave):

                Severity:              3 - Normal => 1 - Wish               
                  Status:                    None => Confirmed              
        Operating System:       Microsoft Windows => Any                    
                 Summary: Logarithm of a quaternion with only a positive real
component => quaternion package: logarithm of a quaternion with only a
positive real component

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Follow-up Comment #1:

Thanks for the bug report. Updating the bug metadata for the quaternion
package, and example follows:


>> pkg load quaternion
>> log (quaternion (2, 0, 0, 0))
warning: division by zero
warning: called from
    log at line 36 column 7
warning: division by zero
warning: division by zero
ans = 0.6931 + NaNi + NaNj + NaNk

## for comparison
>> log (quaternion (2, eps, 0, 0))
ans = 0.6931 + 0i + 0j + 0k



Can you provide a patch against the quaternion package to fix this?

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