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

From: Marco Caliari
Subject: [Octave-bug-tracker] [bug #30571] expm of diagonal matrices
Date: Thu, 29 Jul 2010 07:11:32 +0000
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/2009060214 Firefox/3.0.11

Follow-up Comment #2, bug #30571 (project octave):

It seems that sparse diagonal matrices are excluded:

octave:1> typeinfo (speye (4))
ans = sparse matrix
octave:2> typeinfo (full (speye (4)))
ans = matrix
octave:3> matrix_type (speye (4))
ans = Diagonal

This was the reason to use matrix_type.



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