Matrix: MathWorks/Harvard500

Description: Web matrix (Numerical Computing with MATLAB, Moler, 2004)

MathWorks/Harvard500 graph MathWorks/Harvard500 graph
(bipartite graph drawing) (graph drawing of A+A')

MathWorks/Harvard500
scc of MathWorks/Harvard500

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  • download as a MATLAB mat-file, file size: 14 KB. Use UFget(1172) or UFget('MathWorks/Harvard500') in MATLAB.
  • download in Matrix Market format, file size: 12 KB.
  • download in Rutherford/Boeing format, file size: 8 KB.

    Matrix properties
    number of rows500
    number of columns500
    nonzeros2,636
    # strongly connected comp.147
    explicit zero entries0
    nonzero pattern symmetry 41%
    numeric value symmetry 41%
    typebinary
    structureunsymmetric
    Cholesky candidate?no
    positive definite?no

    authorC. Moler
    editorT. Davis
    date2002
    kinddirected graph
    2D/3D problem?no

    Additional fieldssize and type
    nodenamefull 500-by-93

    SVD-based statistics:
    norm(A)18.148
    min(svd(A))2.95394e-112
    cond(A)6.14364e+112
    rank(A)170
    null space dimension330
    full numerical rank?no
    singular value gap9.59401e+12

    singular values (MAT file):click here
    SVD method used:s = svd (full (A)) ;
    status:ok

    MathWorks/Harvard500 svd

    For a description of the statistics displayed above, click here.

    Maintained by Tim Davis, last updated 12-Mar-2014.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.