# LPnetlib/lpi_ceria3d

 UF Sparse Matrix Collection, Tim Davis

 http://www.cise.ufl.edu/research/sparse/matrices/LPnetlib/lpi_ceria3d

 [Netlib LP problem ceria3d: minimize c'*x, where Ax=b, lo<=x<=hi]

 id: 708

 date: 

 author: E. Klotz

 ed: J. Chinneck

 fields: title name A b id aux kind date author ed notes

 aux: c lo hi z0

 kind: linear programming problem

 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                                                         

 -------------------                                                         

                                                                             

 CERIA3D:  large problem which has some peculiarities.  There are no         

 column bounds, and it is highly degenerate.  Contributor:  Ed Klotz,        

 CPLEX Optimization Inc.                                                     

                                                                             

 Name       Rows   Cols   Nonzeros Bounds      Notes                         

 ceria3d    3577    824    17604   B FR         dense col (> 967)            

                                                                             

![LPnetlib/lpi_ceria3d](http://yifanhu.net/GALLERY/GRAPHS/GIF_SMALL/LPnetlib@lpi_ceria3d.gif)