Matrix: Gset/G49
Description: 2D torus, 100-by-30
(undirected graph drawing) |
Matrix properties | |
number of rows | 3,000 |
number of columns | 3,000 |
nonzeros | 12,000 |
# strongly connected comp. | 1 |
explicit zero entries | 0 |
nonzero pattern symmetry | symmetric |
numeric value symmetry | symmetric |
type | binary |
structure | symmetric |
Cholesky candidate? | no |
positive definite? | no |
author | C. Helmberg |
editor | Y. Ye |
date | 1996 |
kind | undirected random graph |
2D/3D problem? | no |
SVD-based statistics: | |
norm(A) | 4 |
min(svd(A)) | 1.63748e-17 |
cond(A) | 2.44278e+17 |
rank(A) | 2,982 |
null space dimension | 18 |
full numerical rank? | no |
singular value gap | 5.61101e+12 |
singular values (MAT file): | click here |
SVD method used: | s = svd (full (A)) ; |
status: | ok |
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.