• SJSU Singular Matrix Database

    SJSU Singular Matrix Database: Schenk_IBMNA group.

  • Click here for a description of the Schenk_IBMNA 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
    Schenk_IBMNA/c-30 Schenk_IBMNA/
    c-30
    337 MAT,
    MM,
    RB
    5,321 5,321 5,321 5,320 1 0.9998 2.1e+013 4.4e+002 0.23% real
    sym.
    Schenk_IBMNA/c-41 Schenk_IBMNA/
    c-41
    413 MAT,
    MM,
    RB
    9,769 9,769 9,769 9,705 64 0.9934 5e+012 2.5534 0.11% real
    sym.
    Schenk_IBMNA/c-52 Schenk_IBMNA/
    c-52
    401 MAT,
    MM,
    RB
    23,948 23,948 23,948 9 23,939 0.0004 2.3e+023 2.2948 0.035% real
    sym.
    Schenk_IBMNA/c-54 Schenk_IBMNA/
    c-54
    490 MAT,
    MM,
    RB
    31,793 31,793 31,793 31,404 389 0.9878 3.1e+016 1.1111 0.038% real
    sym.
    Schenk_IBMNA/c-56 Schenk_IBMNA/
    c-56
    435 MAT,
    MM,
    RB
    35,910 35,910 35,910 35,904 6 0.9998 1.8e+013 8.3e+002 0.029% real
    sym.
    Schenk_IBMNA/c-64 Schenk_IBMNA/
    c-64
    469 MAT,
    MM,
    RB
    51,035 51,035 51,035 50,941 94 0.9982 7.2e+013 1.0198 0.027% real
    sym.
    Schenk_IBMNA/c-67 Schenk_IBMNA/
    c-67
    441 MAT,
    MM,
    RB
    57,975 57,975 57,975 57,348 627 0.9892 4.3e+013 1.0068 0.016% real
    sym.

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