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  1. Commons Math
  2. MATH-1100

QR factorization fails in revealing rank-deficient matrix

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Invalid
    • Affects Version/s: 3.2
    • Fix Version/s: 3.3
    • Labels:
      None
    • Environment:

      Java HotSpot(TM) Client VM (build 19.1-b02, mixed mode, sharing) an windows 7 professional

      Description

      given a matrix that has not full rank, the method getSolver().isNonSingular() of the class QRDecomposition returns true.

        Attachments

        1. QRtest.zip
          8 kB
          alberto trivellato

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            • Assignee:
              Unassigned
              Reporter:
              albert_triv alberto trivellato
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              Dates

              • Created:
                Updated:
                Resolved: