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ngraph.sparse-collection

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Subset of the University of Florida sparse matrix collection

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# LPnetlib/lpi_bgetam UF Sparse Matrix Collection, Tim Davis http://www.cise.ufl.edu/research/sparse/matrices/LPnetlib/lpi_bgetam [Netlib LP problem bgetam: minimize c'*x, where Ax=b, lo<=x<=hi] id: 704 date: 1993 author: L. Schrage 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/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 ![LPnetlib/lpi_bgetam](http://yifanhu.net/GALLERY/GRAPHS/GIF_SMALL/LPnetlib@lpi_bgetam.gif)