• UF Sparse Matrix Collection

    UF Sparse Matrix Collection: JGD_BIBD group.

  • Click here for a description of the JGD_BIBD 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?
    JGD_BIBD/bibd_11_5 JGD_BIBD/bibd_11_5 JGD_BIBD/bibd_11_5 1922 MAT, MM, RB 55 462 4,620 binary rectangular - no
    JGD_BIBD/bibd_12_4 JGD_BIBD/bibd_12_4 JGD_BIBD/bibd_12_4 1923 MAT, MM, RB 66 495 2,970 binary rectangular - no
    JGD_BIBD/bibd_12_5 JGD_BIBD/bibd_12_5 JGD_BIBD/bibd_12_5 1924 MAT, MM, RB 66 792 7,920 binary rectangular - no
    JGD_BIBD/bibd_13_6 JGD_BIBD/bibd_13_6 JGD_BIBD/bibd_13_6 1925 MAT, MM, RB 78 1,716 25,740 binary rectangular - no
    JGD_BIBD/bibd_14_7 JGD_BIBD/bibd_14_7 JGD_BIBD/bibd_14_7 1926 MAT, MM, RB 91 3,432 72,072 binary rectangular - no
    JGD_BIBD/bibd_15_3 JGD_BIBD/bibd_15_3 JGD_BIBD/bibd_15_3 1927 MAT, MM, RB 105 455 1,365 binary rectangular - no
    JGD_BIBD/bibd_15_7 JGD_BIBD/bibd_15_7 JGD_BIBD/bibd_15_7 1928 MAT, MM, RB 105 6,435 135,135 binary rectangular - no
    JGD_BIBD/bibd_16_8 JGD_BIBD/bibd_16_8 JGD_BIBD/bibd_16_8 1929 MAT, MM, RB 120 12,870 360,360 binary rectangular - no
    JGD_BIBD/bibd_17_3 JGD_BIBD/bibd_17_3 JGD_BIBD/bibd_17_3 1930 MAT, MM, RB 136 680 2,040 binary rectangular - no
    JGD_BIBD/bibd_17_4 JGD_BIBD/bibd_17_4 JGD_BIBD/bibd_17_4 1932 MAT, MM, RB 136 2,380 14,280 binary rectangular - no
    JGD_BIBD/bibd_17_4b JGD_BIBD/bibd_17_4b JGD_BIBD/bibd_17_4b 1931 MAT, MM, RB 136 2,380 14,280 binary rectangular - no
    JGD_BIBD/bibd_17_8 JGD_BIBD/bibd_17_8 JGD_BIBD/bibd_17_8 1933 MAT, MM, RB 136 24,310 680,680 binary rectangular - no
    JGD_BIBD/bibd_18_9 JGD_BIBD/bibd_18_9 JGD_BIBD/bibd_18_9 1934 MAT, MM, RB 153 48,620 1,750,320 binary rectangular - no
    JGD_BIBD/bibd_19_9 JGD_BIBD/bibd_19_9 JGD_BIBD/bibd_19_9 1935 MAT, MM, RB 171 92,378 3,325,608 binary rectangular - no
    JGD_BIBD/bibd_20_10 JGD_BIBD/bibd_20_10 JGD_BIBD/bibd_20_10 1936 MAT, MM, RB 190 184,756 8,314,020 binary rectangular - no
    JGD_BIBD/bibd_22_8 JGD_BIBD/bibd_22_8 JGD_BIBD/bibd_22_8 1937 MAT, MM, RB 231 319,770 8,953,560 binary rectangular - no
    JGD_BIBD/bibd_49_3 JGD_BIBD/bibd_49_3 JGD_BIBD/bibd_49_3 1938 MAT, MM, RB 1,176 18,424 55,272 binary rectangular - no
    JGD_BIBD/bibd_81_2 JGD_BIBD/bibd_81_2 JGD_BIBD/bibd_81_2 1939 MAT, MM, RB 3,240 3,240 3,240 binary symmetric yes yes
    JGD_BIBD/bibd_81_3 JGD_BIBD/bibd_81_3 JGD_BIBD/bibd_81_3 1940 MAT, MM, RB 3,240 85,320 255,960 binary rectangular - no
    JGD_BIBD/bibd_9_3 JGD_BIBD/bibd_9_3 JGD_BIBD/bibd_9_3 1920 MAT, MM, RB 36 84 252 binary rectangular - no
    JGD_BIBD/bibd_9_5 JGD_BIBD/bibd_9_5 JGD_BIBD/bibd_9_5 1921 MAT, MM, RB 36 126 1,260 binary rectangular - 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.