Here is an update of my previous post on this topic . IBM ILOG CPLEX Optimization Studio (CPLEX) is free for for academics thanks to the IBM Academic Initiative. If you are not a faculty member, you may be interested by the free trials available on our developerWorks site.
IBM Academic Initiative (AI) is a global program that faculty members, research professionals at accredited institutions, and qualifying members of standards organizations can join. Members can get full versions of a... [More]