Matrix: Meszaros/nsct

Description: LP sequence: nsct1, nsct2

Meszaros/nsct graph
(bipartite graph drawing)

Meszaros/nsct dmperm of Meszaros/nsct
scc of Meszaros/nsct

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  • Matrix group: Meszaros
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  • download as a MATLAB mat-file, file size: 3 MB. Use UFget(1819) or UFget('Meszaros/nsct') in MATLAB.
  • download in Matrix Market format, file size: 7 MB.
  • download in Rutherford/Boeing format, file size: 3 MB.

    Matrix properties
    number of rows23,003
    number of columns37,563
    structural full rank?no
    structural rank23,002
    # of blocks from dmperm22
    # strongly connected comp.3,698
    explicit zero entries0
    nonzero pattern symmetry 0%
    numeric value symmetry 0%
    Cholesky candidate?no
    positive definite?no

    editorC. Meszaros
    kindlinear programming problem sequence
    2D/3D problem?no

    Additional fieldssize and type
    Acell 2-by-1
    bcell 2-by-1
    ccell 2-by-1
    locell 2-by-1
    hicell 2-by-1
    z0cell 2-by-1

    Converted to standard form via Resende and Veiga's mpsrd:
    minimize c'*x, subject to A*x=b and lo <= x <= hi        

    Ordering statistics:result
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD29,640,161
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD7,896,075

    SVD-based statistics:
    null space dimension386
    full numerical rank?no
    singular value gap1.0076

    singular values (MAT file):click here
    SVD method used:s = svd (full (R)) ; where [~,R,E] = spqr (A') with droptol of zero

    Meszaros/nsct 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.