[Octave-bug-tracker] [bug #30571] expm of diagonal matrices

[Jaroslav Hajek]

Update of bug #30571 (project octave):

             Assigned to:                    None => highegg                
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #1:

First, a scalar is a scalar, not a diagonal matrix.

Second, I'd say ignore the MatrixType check. This is mostly historical and
will only be true for matrices that just happen to be diagonal as a result of
a computation. 

Third, like it or not, typeinfo names include class, so you can have
"diagonal matrix" as well as "float complex diagonal matrix",
so using strfind is a better idea. Beware also of "scalar struct" (though
scalars can be checked by isscalar()).

I checked in the following change instead:
http://hg.savannah.gnu.org/hgweb/octave/rev/1646bd8e3735

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