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[Octave-bug-tracker] [bug #32901] "diag" returns empty matrix where matl

From: Rik
Subject: [Octave-bug-tracker] [bug #32901] "diag" returns empty matrix where matlab's diag returns [0]
Date: Mon, 28 Mar 2011 18:05:07 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110323 Ubuntu/10.04 (lucid) Firefox/3.6.16

Follow-up Comment #3, bug #32901 (project octave):

>> Well, I remember reading somewhere that every deviation from Matlab
behavior (besides extensions like #-comments, +=, etc..) is considered a bug
in Octave. So valid Matlab code should run in Octave as well. 

Actually, the Octave philosophy is that we are not a clone of Matlab.  Rather,
we are open-source numerical computing software which is *generally*
compatible with Matlab, but we don't follow them slavishly where it doesn't
appear to make sense; 100% compatibility is not the goal of Octave.

>>The cited command asks for a zero matrix whos first super-diagonal is empty.
Returning [0] here seems consistent to me:

What is the Matlab behavior for the following:

diag (ones(3,0), 2)

If I understand their interpretation the result should be the equivalent of
'zeros (2,2)'.


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