[Octave-bug-tracker] [bug #66515] rank(sparse_matrix) gives incorrect result

[Liang Tang]

URL:
  <https://savannah.gnu.org/bugs/?66515>

                 Summary: rank(sparse_matrix) gives incorrect result
                   Group: GNU Octave
               Submitter: lt1234
               Submitted: Tue 03 Dec 2024 02:29:20 AM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: lt1234
        Originator Email:
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 9.2.0
        Operating System: Microsoft Windows
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


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Date: Tue 03 Dec 2024 02:29:20 AM UTC By: Liang Tang <lt1234>

rank does not work for sparse matrix.  Should have been an error message.
Thanks.  

a=sparse(30,30); a(1:30, 1:29)=sparse(randi(1, 30,29));
display([sprank(a), rank(a)]) 

29 1

29 is the correct result.







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