• UF Sparse Matrix Collection

    UF Sparse Matrix Collection: HB group.

  • Click here for a description of the HB 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?
    HB/1138_bus HB/1138_bus HB/1138_bus 1 MAT, MM, RB 1,138 1,138 4,054 real symmetric yes yes
    HB/494_bus HB/494_bus HB/494_bus 2 MAT, MM, RB 494 494 1,666 real symmetric yes yes
    HB/662_bus HB/662_bus HB/662_bus 3 MAT, MM, RB 662 662 2,474 real symmetric yes yes
    HB/685_bus HB/685_bus HB/685_bus 4 MAT, MM, RB 685 685 3,249 real symmetric yes yes
    HB/abb313 HB/abb313 HB/abb313 5 MAT, MM, RB 313 176 1,557 binary rectangular - no
    HB/arc130 HB/arc130 HB/arc130 6 MAT, MM, RB 130 130 1,037 real unsymmetric 0% no
    HB/ash219 HB/ash219 HB/ash219 7 MAT, MM, RB 219 85 438 binary rectangular - no
    HB/ash292 HB/ash292 HB/ash292 8 MAT, MM, RB 292 292 2,208 binary symmetric yes no
    HB/ash331 HB/ash331 HB/ash331 9 MAT, MM, RB 331 104 662 binary rectangular - no
    HB/ash608 HB/ash608 HB/ash608 10 MAT, MM, RB 608 188 1,216 binary rectangular - no
    HB/ash85 HB/ash85 HB/ash85 11 MAT, MM, RB 85 85 523 binary symmetric yes no
    HB/ash958 HB/ash958 HB/ash958 12 MAT, MM, RB 958 292 1,916 binary rectangular - no
    HB/bcspwr01 HB/bcspwr01 HB/bcspwr01 13 MAT, MM, RB 39 39 131 binary symmetric yes no
    HB/bcspwr02 HB/bcspwr02 HB/bcspwr02 14 MAT, MM, RB 49 49 167 binary symmetric yes no
    HB/bcspwr03 HB/bcspwr03 HB/bcspwr03 15 MAT, MM, RB 118 118 476 binary symmetric yes no
    HB/bcspwr04 HB/bcspwr04 HB/bcspwr04 16 MAT, MM, RB 274 274 1,612 binary symmetric yes no
    HB/bcspwr05 HB/bcspwr05 HB/bcspwr05 17 MAT, MM, RB 443 443 1,623 binary symmetric yes no
    HB/bcspwr06 HB/bcspwr06 HB/bcspwr06 18 MAT, MM, RB 1,454 1,454 5,300 binary symmetric yes no
    HB/bcspwr07 HB/bcspwr07 HB/bcspwr07 19 MAT, MM, RB 1,612 1,612 5,824 binary symmetric yes no
    HB/bcspwr08 HB/bcspwr08 HB/bcspwr08 20 MAT, MM, RB 1,624 1,624 6,050 binary symmetric yes no
    HB/bcspwr09 HB/bcspwr09 HB/bcspwr09 21 MAT, MM, RB 1,723 1,723 6,511 binary symmetric yes no
    HB/bcspwr10 HB/bcspwr10 HB/bcspwr10 22 MAT, MM, RB 5,300 5,300 21,842 binary symmetric yes no
    HB/bcsstk01 HB/bcsstk01 HB/bcsstk01 23 MAT, MM, RB 48 48 400 real symmetric yes yes
    HB/bcsstk02 HB/bcsstk02 HB/bcsstk02 24 MAT, MM, RB 66 66 4,356 real symmetric yes yes
    HB/bcsstk03 HB/bcsstk03 HB/bcsstk03 25 MAT, MM, RB 112 112 640 real symmetric yes yes
    HB/bcsstk04 HB/bcsstk04 HB/bcsstk04 26 MAT, MM, RB 132 132 3,648 real symmetric yes yes
    HB/bcsstk05 HB/bcsstk05 HB/bcsstk05 27 MAT, MM, RB 153 153 2,423 real symmetric yes yes
    HB/bcsstk06 HB/bcsstk06 HB/bcsstk06 28 MAT, MM, RB 420 420 7,860 real symmetric yes yes
    HB/bcsstk07 HB/bcsstk07 HB/bcsstk07 29 MAT, MM, RB 420 420 7,860 real symmetric yes yes
    HB/bcsstk08 HB/bcsstk08 HB/bcsstk08 30 MAT, MM, RB 1,074 1,074 12,960 real symmetric yes yes
    HB/bcsstk09 HB/bcsstk09 HB/bcsstk09 31 MAT, MM, RB 1,083 1,083 18,437 real symmetric yes yes
    HB/bcsstk10 HB/bcsstk10 HB/bcsstk10 32 MAT, MM, RB 1,086 1,086 22,070 real symmetric yes yes
    HB/bcsstk11 HB/bcsstk11 HB/bcsstk11 33 MAT, MM, RB 1,473 1,473 34,241 real symmetric yes yes
    HB/bcsstk12 HB/bcsstk12 HB/bcsstk12 34 MAT, MM, RB 1,473 1,473 34,241 real symmetric yes yes
    HB/bcsstk13 HB/bcsstk13 HB/bcsstk13 35 MAT, MM, RB 2,003 2,003 83,883 real symmetric yes yes
    HB/bcsstk14 HB/bcsstk14 HB/bcsstk14 36 MAT, MM, RB 1,806 1,806 63,454 real symmetric yes yes
    HB/bcsstk15 HB/bcsstk15 HB/bcsstk15 37 MAT, MM, RB 3,948 3,948 117,816 real symmetric yes yes
    HB/bcsstk16 HB/bcsstk16 HB/bcsstk16 38 MAT, MM, RB 4,884 4,884 290,378 real symmetric yes yes
    HB/bcsstk17 HB/bcsstk17 HB/bcsstk17 39 MAT, MM, RB 10,974 10,974 428,650 real symmetric yes yes
    HB/bcsstk18 HB/bcsstk18 HB/bcsstk18 40 MAT, MM, RB 11,948 11,948 149,090 real symmetric yes yes
    HB/bcsstk19 HB/bcsstk19 HB/bcsstk19 41 MAT, MM, RB 817 817 6,853 real symmetric yes yes
    HB/bcsstk20 HB/bcsstk20 HB/bcsstk20 42 MAT, MM, RB 485 485 3,135 real symmetric yes yes
    HB/bcsstk21 HB/bcsstk21 HB/bcsstk21 43 MAT, MM, RB 3,600 3,600 26,600 real symmetric yes yes
    HB/bcsstk22 HB/bcsstk22 HB/bcsstk22 44 MAT, MM, RB 138 138 696 real symmetric yes yes
    HB/bcsstk23 HB/bcsstk23 HB/bcsstk23 45 MAT, MM, RB 3,134 3,134 45,178 real symmetric yes yes
    HB/bcsstk24 HB/bcsstk24 HB/bcsstk24 46 MAT, MM, RB 3,562 3,562 159,910 real symmetric yes yes
    HB/bcsstk25 HB/bcsstk25 HB/bcsstk25 47 MAT, MM, RB 15,439 15,439 252,241 real symmetric yes yes
    HB/bcsstk26 HB/bcsstk26 HB/bcsstk26 48 MAT, MM, RB 1,922 1,922 30,336 real symmetric yes yes
    HB/bcsstk27 HB/bcsstk27 HB/bcsstk27 49 MAT, MM, RB 1,224 1,224 56,126 real symmetric yes yes
    HB/bcsstk28 HB/bcsstk28 HB/bcsstk28 50 MAT, MM, RB 4,410 4,410 219,024 real symmetric yes yes
    HB/bcsstk29 HB/bcsstk29 HB/bcsstk29 51 MAT, MM, RB 13,992 13,992 619,488 binary symmetric yes no
    HB/bcsstk30 HB/bcsstk30 HB/bcsstk30 52 MAT, MM, RB 28,924 28,924 2,043,492 binary symmetric yes no
    HB/bcsstk31 HB/bcsstk31 HB/bcsstk31 53 MAT, MM, RB 35,588 35,588 1,181,416 binary symmetric yes no
    HB/bcsstk32 HB/bcsstk32 HB/bcsstk32 54 MAT, MM, RB 44,609 44,609 2,014,701 binary symmetric yes no
    HB/bcsstk33 HB/bcsstk33 HB/bcsstk33 55 MAT, MM, RB 8,738 8,738 591,904 binary symmetric yes no
    HB/bcsstm01 HB/bcsstm01 HB/bcsstm01 56 MAT, MM, RB 48 48 24 integer symmetric yes no
    HB/bcsstm02 HB/bcsstm02 HB/bcsstm02 57 MAT, MM, RB 66 66 66 real symmetric yes yes
    HB/bcsstm03 HB/bcsstm03 HB/bcsstm03 58 MAT, MM, RB 112 112 72 real symmetric yes no
    HB/bcsstm04 HB/bcsstm04 HB/bcsstm04 59 MAT, MM, RB 132 132 66 real symmetric yes no
    HB/bcsstm05 HB/bcsstm05 HB/bcsstm05 60 MAT, MM, RB 153 153 153 real symmetric yes yes
    HB/bcsstm06 HB/bcsstm06 HB/bcsstm06 61 MAT, MM, RB 420 420 420 real symmetric yes yes
    HB/bcsstm07 HB/bcsstm07 HB/bcsstm07 62 MAT, MM, RB 420 420 7,252 real symmetric yes yes
    HB/bcsstm08 HB/bcsstm08 HB/bcsstm08 63 MAT, MM, RB 1,074 1,074 1,074 real symmetric yes yes
    HB/bcsstm09 HB/bcsstm09 HB/bcsstm09 64 MAT, MM, RB 1,083 1,083 1,083 real symmetric yes yes
    HB/bcsstm10 HB/bcsstm10 HB/bcsstm10 65 MAT, MM, RB 1,086 1,086 22,092 real symmetric yes no
    HB/bcsstm11 HB/bcsstm11 HB/bcsstm11 66 MAT, MM, RB 1,473 1,473 1,473 real symmetric yes yes
    HB/bcsstm12 HB/bcsstm12 HB/bcsstm12 67 MAT, MM, RB 1,473 1,473 19,659 real symmetric yes yes
    HB/bcsstm13 HB/bcsstm13 HB/bcsstm13 68 MAT, MM, RB 2,003 2,003 21,181 real symmetric yes no
    HB/bcsstm19 HB/bcsstm19 HB/bcsstm19 69 MAT, MM, RB 817 817 817 real symmetric yes yes
    HB/bcsstm20 HB/bcsstm20 HB/bcsstm20 70 MAT, MM, RB 485 485 485 real symmetric yes yes
    HB/bcsstm21 HB/bcsstm21 HB/bcsstm21 71 MAT, MM, RB 3,600 3,600 3,600 real symmetric yes yes
    HB/bcsstm22 HB/bcsstm22 HB/bcsstm22 72 MAT, MM, RB 138 138 138 real symmetric yes yes
    HB/bcsstm23 HB/bcsstm23 HB/bcsstm23 73 MAT, MM, RB 3,134 3,134 3,134 real symmetric yes yes
    HB/bcsstm24 HB/bcsstm24 HB/bcsstm24 74 MAT, MM, RB 3,562 3,562 3,562 real symmetric yes yes
    HB/bcsstm25 HB/bcsstm25 HB/bcsstm25 75 MAT, MM, RB 15,439 15,439 15,439 real symmetric yes yes
    HB/bcsstm26 HB/bcsstm26 HB/bcsstm26 76 MAT, MM, RB 1,922 1,922 1,922 real symmetric yes yes
    HB/bcsstm27 HB/bcsstm27 HB/bcsstm27 77 MAT, MM, RB 1,224 1,224 56,126 real symmetric yes no
    HB/beacxc HB/beacxc HB/beacxc 78 MAT, MM, RB 497 506 50,409 real rectangular - no
    HB/beaflw HB/beaflw HB/beaflw 79 MAT, MM, RB 497 507 53,403 real rectangular - no
    HB/beause HB/beause HB/beause 80 MAT, MM, RB 497 507 44,551 real rectangular - no
    HB/blckhole HB/blckhole HB/blckhole 81 MAT, MM, RB 2,132 2,132 14,872 binary symmetric yes no
    HB/bp_0 HB/bp_0 HB/bp_0 82 MAT, MM, RB 822 822 3,276 real unsymmetric 0.12% no
    HB/bp_1000 HB/bp_1000 HB/bp_1000 83 MAT, MM, RB 822 822 4,661 real unsymmetric 0.04% no
    HB/bp_1200 HB/bp_1200 HB/bp_1200 84 MAT, MM, RB 822 822 4,726 real unsymmetric 0.04% no
    HB/bp_1400 HB/bp_1400 HB/bp_1400 85 MAT, MM, RB 822 822 4,790 real unsymmetric 0.04% no
    HB/bp_1600 HB/bp_1600 HB/bp_1600 86 MAT, MM, RB 822 822 4,841 real unsymmetric 0.04% no
    HB/bp_200 HB/bp_200 HB/bp_200 87 MAT, MM, RB 822 822 3,802 real unsymmetric 0% no
    HB/bp_400 HB/bp_400 HB/bp_400 88 MAT, MM, RB 822 822 4,028 real unsymmetric 0.05% no
    HB/bp_600 HB/bp_600 HB/bp_600 89 MAT, MM, RB 822 822 4,172 real unsymmetric 0.05% no
    HB/bp_800 HB/bp_800 HB/bp_800 90 MAT, MM, RB 822 822 4,534 real unsymmetric 0.04% no
    HB/can_1054 HB/can_1054 HB/can_1054 91 MAT, MM, RB 1,054 1,054 12,196 binary symmetric yes no
    HB/can_1072 HB/can_1072 HB/can_1072 92 MAT, MM, RB 1,072 1,072 12,444 binary symmetric yes no
    HB/can_144 HB/can_144 HB/can_144 93 MAT, MM, RB 144 144 1,296 binary symmetric yes no
    HB/can_161 HB/can_161 HB/can_161 94 MAT, MM, RB 161 161 1,377 binary symmetric yes no
    HB/can_187 HB/can_187 HB/can_187 95 MAT, MM, RB 187 187 1,491 binary symmetric yes no
    HB/can_229 HB/can_229 HB/can_229 96 MAT, MM, RB 229 229 1,777 binary symmetric yes no
    HB/can_24 HB/can_24 HB/can_24 97 MAT, MM, RB 24 24 160 binary symmetric yes no
    HB/can_256 HB/can_256 HB/can_256 98 MAT, MM, RB 256 256 2,916 binary symmetric yes no
    HB/can_268 HB/can_268 HB/can_268 99 MAT, MM, RB 268 268 3,082 binary symmetric yes no
    HB/can_292 HB/can_292 HB/can_292 100 MAT, MM, RB 292 292 2,540 binary symmetric yes no
    HB/can_445 HB/can_445 HB/can_445 101 MAT, MM, RB 445 445 3,809 binary symmetric yes no
    HB/can_61 HB/can_61 HB/can_61 102 MAT, MM, RB 61 61 557 binary symmetric yes no
    HB/can_62 HB/can_62 HB/can_62 103 MAT, MM, RB 62 62 218 binary symmetric yes no
    HB/can_634 HB/can_634 HB/can_634 104 MAT, MM, RB 634 634 7,228 binary symmetric yes no
    HB/can_715 HB/can_715 HB/can_715 105 MAT, MM, RB 715 715 6,665 binary symmetric yes no
    HB/can_73 HB/can_73 HB/can_73 106 MAT, MM, RB 73 73 377 binary symmetric yes no
    HB/can_838 HB/can_838 HB/can_838 107 MAT, MM, RB 838 838 10,010 binary symmetric yes no
    HB/can_96 HB/can_96 HB/can_96 108 MAT, MM, RB 96 96 768 binary symmetric yes no
    HB/cegb2802 HB/cegb2802 HB/cegb2802 1173 MAT, MM, RB 2,802 2,802 277,362 binary symmetric yes no
    HB/cegb2919 HB/cegb2919 HB/cegb2919 1174 MAT, MM, RB 2,919 2,919 321,543 binary symmetric yes no
    HB/cegb3024 HB/cegb3024 HB/cegb3024 1175 MAT, MM, RB 3,024 3,024 79,848 binary symmetric yes no
    HB/cegb3306 HB/cegb3306 HB/cegb3306 1176 MAT, MM, RB 3,306 3,306 74,916 binary symmetric yes no
    HB/curtis54 HB/curtis54 HB/curtis54 109 MAT, MM, RB 54 54 291 binary unsymmetric 95% no
    HB/dwt_1005 HB/dwt_1005 HB/dwt_1005 110 MAT, MM, RB 1,005 1,005 8,621 binary symmetric yes no
    HB/dwt_1007 HB/dwt_1007 HB/dwt_1007 111 MAT, MM, RB 1,007 1,007 8,575 binary symmetric yes no
    HB/dwt_1242 HB/dwt_1242 HB/dwt_1242 112 MAT, MM, RB 1,242 1,242 10,426 binary symmetric yes no
    HB/dwt_162 HB/dwt_162 HB/dwt_162 113 MAT, MM, RB 162 162 1,182 binary symmetric yes no
    HB/dwt_193 HB/dwt_193 HB/dwt_193 114 MAT, MM, RB 193 193 3,493 binary symmetric yes no
    HB/dwt_198 HB/dwt_198 HB/dwt_198 115 MAT, MM, RB 198 198 1,392 binary symmetric yes no
    HB/dwt_209 HB/dwt_209 HB/dwt_209 116 MAT, MM, RB 209 209 1,743 binary symmetric yes no
    HB/dwt_221 HB/dwt_221 HB/dwt_221 117 MAT, MM, RB 221 221 1,629 binary symmetric yes no
    HB/dwt_234 HB/dwt_234 HB/dwt_234 118 MAT, MM, RB 234 234 834 binary symmetric yes no
    HB/dwt_245 HB/dwt_245 HB/dwt_245 119 MAT, MM, RB 245 245 1,461 binary symmetric yes no
    HB/dwt_2680 HB/dwt_2680 HB/dwt_2680 120 MAT, MM, RB 2,680 2,680 25,026 binary symmetric yes no
    HB/dwt_307 HB/dwt_307 HB/dwt_307 121 MAT, MM, RB 307 307 2,523 binary symmetric yes no
    HB/dwt_310 HB/dwt_310 HB/dwt_310 122 MAT, MM, RB 310 310 2,448 binary symmetric yes no
    HB/dwt_346 HB/dwt_346 HB/dwt_346 123 MAT, MM, RB 346 346 3,226 binary symmetric yes no
    HB/dwt_361 HB/dwt_361 HB/dwt_361 124 MAT, MM, RB 361 361 2,953 binary symmetric yes no
    HB/dwt_419 HB/dwt_419 HB/dwt_419 125 MAT, MM, RB 419 419 3,563 binary symmetric yes no
    HB/dwt_492 HB/dwt_492 HB/dwt_492 126 MAT, MM, RB 492 492 3,156 binary symmetric yes no
    HB/dwt_503 HB/dwt_503 HB/dwt_503 127 MAT, MM, RB 503 503 6,027 binary symmetric yes no
    HB/dwt_512 HB/dwt_512 HB/dwt_512 128 MAT, MM, RB 512 512 3,502 binary symmetric yes no
    HB/dwt_59 HB/dwt_59 HB/dwt_59 129 MAT, MM, RB 59 59 267 binary symmetric yes no
    HB/dwt_592 HB/dwt_592 HB/dwt_592 130 MAT, MM, RB 592 592 5,104 binary symmetric yes no
    HB/dwt_607 HB/dwt_607 HB/dwt_607 131 MAT, MM, RB 607 607 5,131 binary symmetric yes no
    HB/dwt_66 HB/dwt_66 HB/dwt_66 132 MAT, MM, RB 66 66 320 binary symmetric yes no
    HB/dwt_72 HB/dwt_72 HB/dwt_72 133 MAT, MM, RB 72 72 222 binary symmetric yes no
    HB/dwt_758 HB/dwt_758 HB/dwt_758 134 MAT, MM, RB 758 758 5,994 binary symmetric yes no
    HB/dwt_869 HB/dwt_869 HB/dwt_869 135 MAT, MM, RB 869 869 7,285 binary symmetric yes no
    HB/dwt_87 HB/dwt_87 HB/dwt_87 136 MAT, MM, RB 87 87 541 binary symmetric yes no
    HB/dwt_878 HB/dwt_878 HB/dwt_878 137 MAT, MM, RB 878 878 7,448 binary symmetric yes no
    HB/dwt_918 HB/dwt_918 HB/dwt_918 138 MAT, MM, RB 918 918 7,384 binary symmetric yes no
    HB/dwt_992 HB/dwt_992 HB/dwt_992 139 MAT, MM, RB 992 992 16,744 binary symmetric yes no
    HB/eris1176 HB/eris1176 HB/eris1176 140 MAT, MM, RB 1,176 1,176 18,552 binary symmetric yes no
    HB/fs_183_1 HB/fs_183_1 HB/fs_183_1 141 MAT, MM, RB 183 183 998 real unsymmetric 0% no
    HB/fs_183_3 HB/fs_183_3 HB/fs_183_3 142 MAT, MM, RB 183 183 1,069 real unsymmetric 0% no
    HB/fs_183_4 HB/fs_183_4 HB/fs_183_4 143 MAT, MM, RB 183 183 1,069 real unsymmetric 0% no
    HB/fs_183_6 HB/fs_183_6 HB/fs_183_6 144 MAT, MM, RB 183 183 1,000 real unsymmetric 0% no
    HB/fs_541_1 HB/fs_541_1 HB/fs_541_1 145 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no
    HB/fs_541_2 HB/fs_541_2 HB/fs_541_2 146 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no
    HB/fs_541_3 HB/fs_541_3 HB/fs_541_3 147 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no
    HB/fs_541_4 HB/fs_541_4 HB/fs_541_4 148 MAT, MM, RB 541 541 4,273 real unsymmetric 0% no
    HB/fs_680_1 HB/fs_680_1 HB/fs_680_1 149 MAT, MM, RB 680 680 2,184 real unsymmetric 0% no
    HB/fs_680_2 HB/fs_680_2 HB/fs_680_2 150 MAT, MM, RB 680 680 2,424 real unsymmetric 0% no
    HB/fs_680_3 HB/fs_680_3 HB/fs_680_3 151 MAT, MM, RB 680 680 2,471 real unsymmetric 0% no
    HB/fs_760_1 HB/fs_760_1 HB/fs_760_1 152 MAT, MM, RB 760 760 5,739 real unsymmetric 0% no
    HB/fs_760_2 HB/fs_760_2 HB/fs_760_2 153 MAT, MM, RB 760 760 5,739 real unsymmetric 0% no
    HB/fs_760_3 HB/fs_760_3 HB/fs_760_3 154 MAT, MM, RB 760 760 5,816 real unsymmetric 0% no
    HB/gemat1 HB/gemat1 HB/gemat1 155 MAT, MM, RB 4,929 10,595 46,591 real rectangular - no
    HB/gemat11 HB/gemat11 HB/gemat11 156 MAT, MM, RB 4,929 4,929 33,108 real unsymmetric 0% no
    HB/gemat12 HB/gemat12 HB/gemat12 157 MAT, MM, RB 4,929 4,929 33,044 real unsymmetric 0% no
    HB/gent113 HB/gent113 HB/gent113 158 MAT, MM, RB 113 113 655 binary unsymmetric 6% no
    HB/gr_30_30 HB/gr_30_30 HB/gr_30_30 159 MAT, MM, RB 900 900 7,744 integer symmetric yes yes
    HB/gre_1107 HB/gre_1107 HB/gre_1107 160 MAT, MM, RB 1,107 1,107 5,664 real unsymmetric 0% no
    HB/gre_115 HB/gre_115 HB/gre_115 161 MAT, MM, RB 115 115 421 real unsymmetric 0% no
    HB/gre_185 HB/gre_185 HB/gre_185 162 MAT, MM, RB 185 185 975 real unsymmetric 0% no
    HB/gre_216a HB/gre_216a HB/gre_216a 163 MAT, MM, RB 216 216 812 real unsymmetric 0% no
    HB/gre_216b HB/gre_216b HB/gre_216b 164 MAT, MM, RB 216 216 812 real unsymmetric 0% no
    HB/gre_343 HB/gre_343 HB/gre_343 165 MAT, MM, RB 343 343 1,310 real unsymmetric 0% no
    HB/gre_512 HB/gre_512 HB/gre_512 166 MAT, MM, RB 512 512 1,976 real unsymmetric 0% no
    HB/hor_131 HB/hor_131 HB/hor_131 167 MAT, MM, RB 434 434 4,182 real unsymmetric 37% no
    HB/ibm32 HB/ibm32 HB/ibm32 168 MAT, MM, RB 32 32 126 binary unsymmetric 9% no
    HB/illc1033 HB/illc1033 HB/illc1033 169 MAT, MM, RB 1,033 320 4,719 real rectangular - no
    HB/illc1850 HB/illc1850 HB/illc1850 170 MAT, MM, RB 1,850 712 8,636 real rectangular - no
    HB/impcol_a HB/impcol_a HB/impcol_a 171 MAT, MM, RB 207 207 572 real unsymmetric 1% no
    HB/impcol_b HB/impcol_b HB/impcol_b 172 MAT, MM, RB 59 59 271 real unsymmetric 0% no
    HB/impcol_c HB/impcol_c HB/impcol_c 173 MAT, MM, RB 137 137 400 real unsymmetric 1% no
    HB/impcol_d HB/impcol_d HB/impcol_d 174 MAT, MM, RB 425 425 1,255 real unsymmetric 2% no
    HB/impcol_e HB/impcol_e HB/impcol_e 175 MAT, MM, RB 225 225 1,303 real unsymmetric 0.16% no
    HB/jagmesh1 HB/jagmesh1 HB/jagmesh1 176 MAT, MM, RB 936 936 6,264 binary symmetric yes no
    HB/jagmesh2 HB/jagmesh2 HB/jagmesh2 177 MAT, MM, RB 1,009 1,009 6,865 binary symmetric yes no
    HB/jagmesh3 HB/jagmesh3 HB/jagmesh3 178 MAT, MM, RB 1,089 1,089 7,361 binary symmetric yes no
    HB/jagmesh4 HB/jagmesh4 HB/jagmesh4 179 MAT, MM, RB 1,440 1,440 9,504 binary symmetric yes no
    HB/jagmesh5 HB/jagmesh5 HB/jagmesh5 180 MAT, MM, RB 1,180 1,180 7,750 binary symmetric yes no
    HB/jagmesh6 HB/jagmesh6 HB/jagmesh6 181 MAT, MM, RB 1,377 1,377 8,993 binary symmetric yes no
    HB/jagmesh7 HB/jagmesh7 HB/jagmesh7 182 MAT, MM, RB 1,138 1,138 7,450 binary symmetric yes no
    HB/jagmesh8 HB/jagmesh8 HB/jagmesh8 183 MAT, MM, RB 1,141 1,141 7,465 binary symmetric yes no
    HB/jagmesh9 HB/jagmesh9 HB/jagmesh9 184 MAT, MM, RB 1,349 1,349 9,101 binary symmetric yes no
    HB/jgl009 HB/jgl009 HB/jgl009 185 MAT, MM, RB 9 9 50 binary unsymmetric 48% no
    HB/jgl011 HB/jgl011 HB/jgl011 186 MAT, MM, RB 11 11 76 binary unsymmetric 52% no
    HB/jpwh_991 HB/jpwh_991 HB/jpwh_991 187 MAT, MM, RB 991 991 6,027 integer unsymmetric 94% no
    HB/lap_25 HB/lap_25 HB/lap_25 1177 MAT, MM, RB 25 25 169 binary symmetric yes no
    HB/lns_131 HB/lns_131 HB/lns_131 188 MAT, MM, RB 131 131 536 real unsymmetric 2% no
    HB/lns_3937 HB/lns_3937 HB/lns_3937 189 MAT, MM, RB 3,937 3,937 25,407 real unsymmetric 0.14% no
    HB/lns_511 HB/lns_511 HB/lns_511 190 MAT, MM, RB 511 511 2,796 real unsymmetric 2% no
    HB/lnsp3937 HB/lnsp3937 HB/lnsp3937 191 MAT, MM, RB 3,937 3,937 25,407 real unsymmetric 0.14% no
    HB/lnsp_131 HB/lnsp_131 HB/lnsp_131 192 MAT, MM, RB 131 131 536 real unsymmetric 2% no
    HB/lnsp_511 HB/lnsp_511 HB/lnsp_511 193 MAT, MM, RB 511 511 2,796 real unsymmetric 2% no
    HB/lock1074 HB/lock1074 HB/lock1074 1178 MAT, MM, RB 1,074 1,074 51,588 binary symmetric yes no
    HB/lock2232 HB/lock2232 HB/lock2232 1179 MAT, MM, RB 2,232 2,232 80,352 binary symmetric yes no
    HB/lock3491 HB/lock3491 HB/lock3491 1180 MAT, MM, RB 3,491 3,491 160,444 binary symmetric yes no
    HB/lock_700 HB/lock_700 HB/lock_700 1181 MAT, MM, RB 700 700 22,175 binary symmetric yes no
    HB/lshp1009 HB/lshp1009 HB/lshp1009 194 MAT, MM, RB 1,009 1,009 6,865 binary symmetric yes no
    HB/lshp1270 HB/lshp1270 HB/lshp1270 195 MAT, MM, RB 1,270 1,270 8,668 binary symmetric yes no
    HB/lshp1561 HB/lshp1561 HB/lshp1561 196 MAT, MM, RB 1,561 1,561 10,681 binary symmetric yes no
    HB/lshp1882 HB/lshp1882 HB/lshp1882 197 MAT, MM, RB 1,882 1,882 12,904 binary symmetric yes no
    HB/lshp2233 HB/lshp2233 HB/lshp2233 198 MAT, MM, RB 2,233 2,233 15,337 binary symmetric yes no
    HB/lshp2614 HB/lshp2614 HB/lshp2614 199 MAT, MM, RB 2,614 2,614 17,980 binary symmetric yes no
    HB/lshp3025 HB/lshp3025 HB/lshp3025 200 MAT, MM, RB 3,025 3,025 20,833 binary symmetric yes no
    HB/lshp3466 HB/lshp3466 HB/lshp3466 201 MAT, MM, RB 3,466 3,466 23,896 binary symmetric yes no
    HB/lshp_265 HB/lshp_265 HB/lshp_265 202 MAT, MM, RB 265 265 1,753 binary symmetric yes no
    HB/lshp_406 HB/lshp_406 HB/lshp_406 203 MAT, MM, RB 406 406 2,716 binary symmetric yes no
    HB/lshp_577 HB/lshp_577 HB/lshp_577 204 MAT, MM, RB 577 577 3,889 binary symmetric yes no
    HB/lshp_778 HB/lshp_778 HB/lshp_778 205 MAT, MM, RB 778 778 5,272 binary symmetric yes no
    HB/lund_a HB/lund_a HB/lund_a 206 MAT, MM, RB 147 147 2,449 real symmetric yes yes
    HB/lund_b HB/lund_b HB/lund_b 207 MAT, MM, RB 147 147 2,441 real symmetric yes yes
    HB/mahindas HB/mahindas HB/mahindas 208 MAT, MM, RB 1,258 1,258 7,682 real unsymmetric 0% no
    HB/man_5976 HB/man_5976 HB/man_5976 1182 MAT, MM, RB 5,976 5,976 225,046 binary symmetric yes no
    HB/mbeacxc HB/mbeacxc HB/mbeacxc 209 MAT, MM, RB 496 496 49,920 real unsymmetric 0% no
    HB/mbeaflw HB/mbeaflw HB/mbeaflw 210 MAT, MM, RB 496 496 49,920 real unsymmetric 0% no
    HB/mbeause HB/mbeause HB/mbeause 211 MAT, MM, RB 496 496 41,063 real unsymmetric 0.78% no
    HB/mcca HB/mcca HB/mcca 212 MAT, MM, RB 180 180 2,659 real unsymmetric 0% no
    HB/mcfe HB/mcfe HB/mcfe 213 MAT, MM, RB 765 765 24,382 real unsymmetric 0% no
    HB/nnc1374 HB/nnc1374 HB/nnc1374 214 MAT, MM, RB 1,374 1,374 8,588 real unsymmetric 59% no
    HB/nnc261 HB/nnc261 HB/nnc261 215 MAT, MM, RB 261 261 1,500 real unsymmetric 61% no
    HB/nnc666 HB/nnc666 HB/nnc666 216 MAT, MM, RB 666 666 4,032 real unsymmetric 59% no
    HB/nos1 HB/nos1 HB/nos1 217 MAT, MM, RB 237 237 1,017 real symmetric yes yes
    HB/nos2 HB/nos2 HB/nos2 218 MAT, MM, RB 957 957 4,137 real symmetric yes yes
    HB/nos3 HB/nos3 HB/nos3 219 MAT, MM, RB 960 960 15,844 real symmetric yes yes
    HB/nos4 HB/nos4 HB/nos4 220 MAT, MM, RB 100 100 594 real symmetric yes yes
    HB/nos5 HB/nos5 HB/nos5 221 MAT, MM, RB 468 468 5,172 real symmetric yes yes
    HB/nos6 HB/nos6 HB/nos6 222 MAT, MM, RB 675 675 3,255 real symmetric yes yes
    HB/nos7 HB/nos7 HB/nos7 223 MAT, MM, RB 729 729 4,617 real symmetric yes yes
    HB/orani678 HB/orani678 HB/orani678 224 MAT, MM, RB 2,529 2,529 90,158 real unsymmetric 0.00% no
    HB/orsirr_1 HB/orsirr_1 HB/orsirr_1 225 MAT, MM, RB 1,030 1,030 6,858 real unsymmetric 41% no
    HB/orsirr_2 HB/orsirr_2 HB/orsirr_2 226 MAT, MM, RB 886 886 5,970 real unsymmetric 41% no
    HB/orsreg_1 HB/orsreg_1 HB/orsreg_1 227 MAT, MM, RB 2,205 2,205 14,133 real unsymmetric 41% no
    HB/plat1919 HB/plat1919 HB/plat1919 228 MAT, MM, RB 1,919 1,919 32,399 real symmetric yes yes
    HB/plat362 HB/plat362 HB/plat362 229 MAT, MM, RB 362 362 5,786 real symmetric yes yes
    HB/plsk1919 HB/plsk1919 HB/plsk1919 230 MAT, MM, RB 1,919 1,919 9,662 real skew-symmetric 0% no
    HB/plskz362 HB/plskz362 HB/plskz362 231 MAT, MM, RB 362 362 1,760 real skew-symmetric 0% no
    HB/pores_1 HB/pores_1 HB/pores_1 232 MAT, MM, RB 30 30 180 real unsymmetric 29% no
    HB/pores_2 HB/pores_2 HB/pores_2 233 MAT, MM, RB 1,224 1,224 9,613 real unsymmetric 39% no
    HB/pores_3 HB/pores_3 HB/pores_3 234 MAT, MM, RB 532 532 3,474 real unsymmetric 31% no
    HB/psmigr_1 HB/psmigr_1 HB/psmigr_1 235 MAT, MM, RB 3,140 3,140 543,160 integer unsymmetric 1% no
    HB/psmigr_2 HB/psmigr_2 HB/psmigr_2 236 MAT, MM, RB 3,140 3,140 540,022 real unsymmetric 0% no
    HB/psmigr_3 HB/psmigr_3 HB/psmigr_3 237 MAT, MM, RB 3,140 3,140 543,160 real unsymmetric 0% no
    HB/rgg010 HB/rgg010 HB/rgg010 238 MAT, MM, RB 10 10 76 binary unsymmetric 64% no
    HB/saylr1 HB/saylr1 HB/saylr1 239 MAT, MM, RB 238 238 1,128 real unsymmetric 65% no
    HB/saylr3 HB/saylr3 HB/saylr3 240 MAT, MM, RB 1,000 1,000 3,750 real symmetric yes no
    HB/saylr4 HB/saylr4 HB/saylr4 241 MAT, MM, RB 3,564 3,564 22,316 real symmetric yes no
    HB/sherman1 HB/sherman1 HB/sherman1 242 MAT, MM, RB 1,000 1,000 3,750 real symmetric yes no
    HB/sherman2 HB/sherman2 HB/sherman2 243 MAT, MM, RB 1,080 1,080 23,094 real unsymmetric 0.49% no
    HB/sherman3 HB/sherman3 HB/sherman3 244 MAT, MM, RB 5,005 5,005 20,033 real unsymmetric 45% no
    HB/sherman4 HB/sherman4 HB/sherman4 245 MAT, MM, RB 1,104 1,104 3,786 real unsymmetric 0% no
    HB/sherman5 HB/sherman5 HB/sherman5 246 MAT, MM, RB 3,312 3,312 20,793 real unsymmetric 15% no
    HB/shl_0 HB/shl_0 HB/shl_0 247 MAT, MM, RB 663 663 1,687 integer unsymmetric 0% no
    HB/shl_200 HB/shl_200 HB/shl_200 248 MAT, MM, RB 663 663 1,726 integer unsymmetric 0% no
    HB/shl_400 HB/shl_400 HB/shl_400 249 MAT, MM, RB 663 663 1,712 integer unsymmetric 0% no
    HB/sstmodel HB/sstmodel HB/sstmodel 250 MAT, MM, RB 3,345 3,345 22,749 binary symmetric yes no
    HB/steam1 HB/steam1 HB/steam1 251 MAT, MM, RB 240 240 2,248 real unsymmetric 27% no
    HB/steam2 HB/steam2 HB/steam2 252 MAT, MM, RB 600 600 5,660 real unsymmetric 19% no
    HB/steam3 HB/steam3 HB/steam3 253 MAT, MM, RB 80 80 314 real unsymmetric 32% no
    HB/str_0 HB/str_0 HB/str_0 254 MAT, MM, RB 363 363 2,454 real unsymmetric 0% no
    HB/str_200 HB/str_200 HB/str_200 255 MAT, MM, RB 363 363 3,068 real unsymmetric 0% no
    HB/str_400 HB/str_400 HB/str_400 256 MAT, MM, RB 363 363 3,157 real unsymmetric 0% no
    HB/str_600 HB/str_600 HB/str_600 257 MAT, MM, RB 363 363 3,279 real unsymmetric 0% no
    HB/watt_1 HB/watt_1 HB/watt_1 258 MAT, MM, RB 1,856 1,856 11,360 real unsymmetric 99% no
    HB/watt_2 HB/watt_2 HB/watt_2 259 MAT, MM, RB 1,856 1,856 11,550 real unsymmetric 97% no
    HB/well1033 HB/well1033 HB/well1033 260 MAT, MM, RB 1,033 320 4,732 real rectangular - no
    HB/well1850 HB/well1850 HB/well1850 261 MAT, MM, RB 1,850 712 8,755 real rectangular - no
    HB/west0067 HB/west0067 HB/west0067 262 MAT, MM, RB 67 67 294 real unsymmetric 0% no
    HB/west0132 HB/west0132 HB/west0132 263 MAT, MM, RB 132 132 413 real unsymmetric 0.49% no
    HB/west0156 HB/west0156 HB/west0156 264 MAT, MM, RB 156 156 362 real unsymmetric 0% no
    HB/west0167 HB/west0167 HB/west0167 265 MAT, MM, RB 167 167 506 real unsymmetric 0% no
    HB/west0381 HB/west0381 HB/west0381 266 MAT, MM, RB 381 381 2,134 real unsymmetric 0.09% no
    HB/west0479 HB/west0479 HB/west0479 267 MAT, MM, RB 479 479 1,888 real unsymmetric 0% no
    HB/west0497 HB/west0497 HB/west0497 268 MAT, MM, RB 497 497 1,721 real unsymmetric 0% no
    HB/west0655 HB/west0655 HB/west0655 269 MAT, MM, RB 655 655 2,808 real unsymmetric 0% no
    HB/west0989 HB/west0989 HB/west0989 270 MAT, MM, RB 989 989 3,518 real unsymmetric 0.40% no
    HB/west1505 HB/west1505 HB/west1505 271 MAT, MM, RB 1,505 1,505 5,414 real unsymmetric 0% no
    HB/west2021 HB/west2021 HB/west2021 272 MAT, MM, RB 2,021 2,021 7,310 real unsymmetric 0% no
    HB/will199 HB/will199 HB/will199 273 MAT, MM, RB 199 199 701 binary unsymmetric 6% no
    HB/will57 HB/will57 HB/will57 274 MAT, MM, RB 57 57 281 binary unsymmetric 87% no
    HB/wm1 HB/wm1 HB/wm1 275 MAT, MM, RB 207 277 2,909 real rectangular - no
    HB/wm2 HB/wm2 HB/wm2 276 MAT, MM, RB 207 260 2,942 real rectangular - no
    HB/wm3 HB/wm3 HB/wm3 277 MAT, MM, RB 207 260 2,948 real rectangular - no
    HB/young1c HB/young1c HB/young1c 278 MAT, MM, RB 841 841 4,089 complex unsymmetric 85% no
    HB/young2c HB/young2c HB/young2c 279 MAT, MM, RB 841 841 4,089 complex unsymmetric 85% no
    HB/young3c HB/young3c HB/young3c 280 MAT, MM, RB 841 841 3,988 real unsymmetric 81% no
    HB/young4c HB/young4c HB/young4c 281 MAT, MM, RB 841 841 4,089 complex unsymmetric 80% no
    HB/zenios HB/zenios HB/zenios 282 MAT, MM, RB 2,873 2,873 1,314 real symmetric yes 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.