[Help-glpk] Callbacks in C#

2009-11-25 Thread jezambranos
Hi Has anyone have used GLPKSharp to implement cut callbacks , is there a place where i can see an example ? Sorry for the english Regards Javier HiHas anyone have used GLPKSharp to implement cut callbacks , is there a place where i can see an example ?Sorry for the englishRegards

Re: [Help-glpk] Linear Programming Relaxation

2009-11-25 Thread David Bremner
RC Loh wrote: Just to confirm on question (2). I understand that GLPK also uses Interior Point method. Isn't the Interior Point method a polynomial time method? Yes it is, but for linear programming, not for integer or mixed integer programming. So with the Linear Programming Relaxation, the

Re: [Help-glpk] Linear Programming Relaxation

2009-11-25 Thread Andrew Makhorin
What does actually 2-approximation 3-approximation or 6-approximation means? See: http://en.wikipedia.org/wiki/Approximation_algorithm ___ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk

[Help-glpk] glpk and glpk-java

2009-11-25 Thread Torben Frøberg
Hi I am using Ubuntu 9.04 and I have installed the glpk version 4.39. I would like to install the java interface glpk-java version 1.0.6 (http://sourceforge.net/projects/glpk-java/). When trying to compile the package I get the compiler error: mkdir -p src/java mkdir -p java/org/gnu/glpk