Schenk: IBM TJ Watson, Yorktown, nonlinear optimization
Name c-70
Group GHS_indef
Matrix ID 1227
Num Rows 68,924
Num Cols 68,924
Nonzeros 658,986
Pattern Entries 658,986
Kind Optimization Problem
Symmetric Yes
Date 2004
Author IBM
Editor O. Schenk
Structural Rank 68,924
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type real
Download MATLAB Rutherford Boeing Matrix Market
Revised Nov 2006; relative eps changes to A, right-hand-side added.
Note that this matrix should have been placed in the Schenk_IBMNA/ 
directory when it was first added in August 2004, but moving it now
would disrupt exising users of the collection.