Matrix: Rajat/rajat09

Description: Rajat/rajat09 circuit simulation matrix

Rajat/rajat09 graph
(undirected graph drawing)

Rajat/rajat09 dmperm of Rajat/rajat09

  • Home page of the UF Sparse Matrix Collection
  • Matrix group: Rajat
  • Click here for a description of the Rajat group.
  • Click here for a list of all matrices
  • Click here for a list of all matrix groups
  • download as a MATLAB mat-file, file size: 188 KB. Use UFget(1193) or UFget('Rajat/rajat09') in MATLAB.
  • download in Matrix Market format, file size: 182 KB.
  • download in Rutherford/Boeing format, file size: 171 KB.

    Matrix properties
    number of rows24,482
    number of columns24,482
    structural full rank?yes
    structural rank24,482
    # of blocks from dmperm183
    # strongly connected comp.1
    explicit zero entries0
    nonzero pattern symmetrysymmetric
    numeric value symmetrysymmetric
    Cholesky candidate?no
    positive definite?no

    editorT. Davis
    kindcircuit simulation problem
    2D/3D problem?no

    Ordering statistics:result
    nnz(chol(P*(A+A'+s*I)*P')) with AMD371,955
    Cholesky flop count2.6e+07
    nnz(L+U), no partial pivoting, with AMD719,428
    nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD683,566
    nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD1,261,972

    SVD-based statistics:
    null space dimension0
    full numerical rank?yes

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

    Rajat/rajat09 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.