[Octave-bug-tracker] [bug #40712] Running into index errors with large, 64k square sparse matrices

[Rik]

Update of bug #40712 (project octave):

                  Status:               Confirmed => Duplicate              
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #3:

Marking as a duplicate and closing report.

Octave is now built by default with 64-bit indices which helps avoid some of
these situations.

The out-of-memory issue is real because there is no way to avoid converting
the sparse matrix to a full one.  With 64-bit indices you can use logical
indexing, or choose linear indexing.  For example,


nz = find (D);
D(nz) .^= -0.5;




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