GHS_indef/exdata_1

MATRIX EXDATA FROM STEVE WRIGHT . MA57 SLOWER THAN MA27
Name exdata_1
Group GHS_indef
Matrix ID 1235
Num Rows 6,001
Num Cols 6,001
Nonzeros 2,269,500
Pattern Entries 2,269,501
Kind Optimization Problem
Symmetric Yes
Date 2004
Author S. Wright
Editor N. Gould, Y. Hu, J. Scott
Structural Rank 6,001
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 1
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 3.695657e+08
Minimum Singular Value 3.486051e-04
Condition Number 1.060127e+12
Rank 6,000
sprank(A)-rank(A) 1
Null Space Dimension 1
Full Numerical Rank? no
Download Singular Values MATLAB