• UF Sparse Matrix Collection

    UF Sparse Matrix Collection: Norris group.

  • Click here for a description of the Norris group.
  • Click here for a list of all matrix groups.
  • Click here for a list of all matrices.

    matrix graph Group/Name id download # rows # cols nonzeros type sym spd?
    Norris/fv1 Norris/fv1 Norris/fv1 887 MAT, MM, RB 9,604 9,604 85,264 real symmetric yes yes
    Norris/fv2 Norris/fv2 Norris/fv2 888 MAT, MM, RB 9,801 9,801 87,025 real symmetric yes yes
    Norris/fv3 Norris/fv3 Norris/fv3 889 MAT, MM, RB 9,801 9,801 87,025 real symmetric yes yes
    Norris/heart1 Norris/heart1 Norris/heart1 890 MAT, MM, RB 3,557 3,557 1,385,317 real unsymmetric 0% no
    Norris/heart2 Norris/heart2 Norris/heart2 891 MAT, MM, RB 2,339 2,339 680,341 real unsymmetric 0% no
    Norris/heart3 Norris/heart3 Norris/heart3 892 MAT, MM, RB 2,339 2,339 680,341 real unsymmetric 0% no
    Norris/lung1 Norris/lung1 Norris/lung1 893 MAT, MM, RB 1,650 1,650 7,419 real unsymmetric 0% no
    Norris/lung2 Norris/lung2 Norris/lung2 894 MAT, MM, RB 109,460 109,460 492,564 real unsymmetric 0% no
    Norris/stomach Norris/stomach Norris/stomach 895 MAT, MM, RB 213,360 213,360 3,021,648 real unsymmetric 0% no
    Norris/torso1 Norris/torso1 Norris/torso1 896 MAT, MM, RB 116,158 116,158 8,516,500 real unsymmetric 0% no
    Norris/torso2 Norris/torso2 Norris/torso2 897 MAT, MM, RB 115,967 115,967 1,033,473 real unsymmetric 0% no
    Norris/torso3 Norris/torso3 Norris/torso3 898 MAT, MM, RB 259,156 259,156 4,429,042 real unsymmetric 0% no

    Maintained by Tim Davis, last updated 10-Jun-2015.
    Matrix pictures by cspy, a MATLAB function in the CSparse package.
    See UFget to download directly into MATLAB.