LPnetlib/lpi_bgetam

Netlib LP problem bgetam: minimize c'*x, where Ax=b, lo<=x<=hi
Name lpi_bgetam
Group LPnetlib
Matrix ID 704
Num Rows 400
Num Cols 816
Nonzeros 2,537
Pattern Entries 2,537
Kind Linear Programming Problem
Symmetric No
Date 1993
Author L. Schrage
Editor J. Chinneck
Structural Rank 400
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 2
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 2.258292e+03
Minimum Singular Value 4.297841e-02
Condition Number 5.254480e+04
Rank 400
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes
An infeasible Netlib LP problem, in lp/infeas.  For more information        
send email to netlib@ornl.gov with the message:                             
                                                                            
	send index from lp                                                         
	send readme from lp/data                                                   
	send readme from lp/infeas                                                 
                                                                            
The lp/infeas directory contains infeasible linear programming test problems
collected by John W. Chinneck, Carleton Univ, Ontario Canada.  The following
are relevant excerpts from lp/infeas/readme (by John W. Chinneck):          
                                                                            
PROBLEM DESCRIPTION                                                         
-------------------                                                         
                                                                            
BGETAM is a medium model that is a version of the ETAMACRO test problem     
(in lp/data) in which one right hand side has been altered to make it       
infeasible.                                                                 
Contributor:  Linus Schrage, University of Chicago and LINDO Systems Inc.   
                                                                            
Name       Rows   Cols   Nonzeros Bounds      Notes                         
bgetam      401    688     2489   B                                         
                                                                            
Added to Netlib on Sept. 19, 1993