LPnetlib/lpi_pang

Netlib LP problem pang: minimize c'*x, where Ax=b, lo<=x<=hi
Name lpi_pang
Group LPnetlib
Matrix ID 725
Num Rows 361
Num Cols 741
Nonzeros 2,933
Pattern Entries 2,933
Kind Linear Programming Problem
Symmetric No
Date 1993
Author R. Main
Editor J. Chinneck
Structural Rank 361
Structural Rank Full true
Num Dmperm Blocks 5
Strongly Connect Components 6
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 9.999900e+04
Minimum Singular Value 3.424125e-01
Condition Number 2.920425e+05
Rank 361
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/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                                                         
-------------------                                                         
                                                                            
GOSH, GRAN, PANG:  these very large, large, and medium size models,         
respectively, problems arose from British Petroleum operations models.      
Contributor:  Roger Main, BP Oil.                                           
                                                                            
Name       Rows   Cols   Nonzeros Bounds      Notes                         
pang        362    460     2666   B FR FX                                   
                                                                            
Added to Netlib on Sept. 19, 1993