Web Seminar

Guidelines for Assessing Ill Conditioning in Linear and Integer Programs

The simplex method solves square linear systems of equations while optimizing a single linear program (LP). O.R. practitioners can use condition numbers of these systems to assess ill conditioning in an LP.  Most literature describes ill conditioned models as having large condition numbers, but provides no thresholds for values that indicate an ill conditioned system.  We will provide a methodology to define suitable thresholds and assess ill conditioning in linear and integer programs.

Dr. Ed Klotz, Mathematical Programming Specialist, IBM ILOG CPLEX

Web Seminar

Date: Wednesday, March 9, 2011
Time: 10 am PST / 1 pm EST

Solving Quadratic Models with IBM ILOG CPLEX Optimization Studio

IBM ILOG CPLEX Optimization Studio offers the most powerful, comprehensive and reliable solvers for convex quadratic optimization problems.  Learn about the types of problems that can be solved, the many modeling interfaces available, and examples of use in industries such as finance and electric utilities.

John Gregory, Senior Product Manager, IBM ILOG CPLEX Optimizer


Don’t miss IBM at these must attend events:

April 10-15
Las Vegas, NV
For IT professionals, business partners and business leaders

IBM Advanced Analytics Summit

April 13
Chicago, IL
Register for this special IBM event following the INFORMS Conference on Business Analytics and Operations Research at the Marriott Chicago, IL. Learn how the IBM ILOG Optimization, SCM and SPSS portfolios and Business Analytics & Optimization service line enable you to quickly and confidently answer fundamental business questions.

register now

April 10-12
Chicago, IL
The premiere conference on Business Analytics and Operations Research

follow us on Twitter

If you'd like IBM to refrain from sending you similar marketing e-mails send an e-mail to, IBM Corporation, 777 East Wisconsin Avenue, 31st Fl, Milwaukee, WI 53202

This information is provided "as is" without warranty of any kind, express or implied, and is based on current IBM product plans and strategy, which are subject to change by IBM without notice. IBM shall not be responsible for any damages arising out of the use of, or otherwise related to, this document. Nothing contained in this document is intended to, nor shall have the effect of, creating any warranties or representations from IBM (or its suppliers or licensors), or altering the terms and conditions of the applicable license agreement governing the use of IBM software.

IBM, the IBM logo,, Smarter Planet and the planet icon are trademarks of International Business Machines Corporation, registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web at