• SJSU Singular Matrix Database

    SJSU Singular Matrix Database: Norris group.

  • Click here for a description of the Norris group.
  • Click here for a list of all matrix groups.

    singular
    value
    spectrum
    thumbnail
    Group /
    Name
    SJid down-
    load
    # rows # cols struct.
    rank
    num.
    rank
    dim
    null
    space
    num.
    rank /
    min(m,n)
    condest gap nnz /
    (m*n)
    type
    Norris/lung1 Norris/
    lung1
    301 MAT,
    MM,
    RB
    1,650 1,650 1,650 1,549 101 0.9388 5.6e+012 1.0106 0.27% real
    unsym.
    Norris/lung2 Norris/
    lung2
    431 MAT,
    MM,
    RB
    109,460 109,460 109,460 55,103 54,357 0.5034 5.6e+012 1.0348 0.0041% real
    unsym.

    Maintained by Leslie Foster, last updated 16-Feb-2009.
    See SJget to download directly into MATLAB.