• UF Sparse Matrix Collection
  • Matrix group: Cunningham
  • Click here for a description of the Cunningham group.
  • Click here for a list of all matrices
  • Click here for a list of all matrix groups

  • Matrix: Cunningham/m3plates
  • Description: FE mass matrix, 3 plates meeting at a line. A. Cunningham
  • download as a MATLAB mat-file, file size: 38 KB. Use UFget(843) or UFget('Cunningham/m3plates') in MATLAB.
  • download in Matrix Market format
  • download in Rutherford/Boeing format

    Cunningham/m3plates

    dmperm of Cunningham/m3plates

    scc of Cunningham/m3plates

    Cunningham/m3plates graph

    Matrix properties
    number of rows11,107
    number of columns11,107
    nonzeros6,639
    structural full rank?no
    structural rank6,639
    # of blocks from dmperm6,641
    # strongly connected comp.11,107
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetrysymmetric
    typereal
    structuresymmetric
    Cholesky candidate?yes
    positive definite?no

    authorA. Cunningham
    editorT. Davis
    date2002
    kindacoustics problem
    2D/3D problem?yes

    Ordering statistics:AMD METIS
    nnz(chol(P*(A+A'+s*I)*P'))11,107 11,107
    Cholesky flop count1.1e+04 1.1e+04
    nnz(L+U), no partial pivoting11,107 11,107
    nnz(V) for QR, upper bound nnz(L) for LU11,107 11,107
    nnz(R) for QR, upper bound nnz(U) for LU11,107 11,107

    Maintained by Tim Davis, last updated 04-May-2008.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.