GLPK 4.34 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the free program is GnuWin32. The most popular version among the software users is 4.3.
GLPK lies within Education Tools, more precisely Science Tools. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. GLPK is sometimes distributed under different names, such as "GnuWin32 Glpk-4.34".
From the developer:
GLPK (GNU Linear Programming Kit) is a program intended for solving large scale linear programming problems by means of the revised simplex method. It is a set of routines written in ANSI C and organized in the form of a library. The program can solve large-scale linear programming (LP), mixed integer linear programming (MIP) and other related problems.
You may want to check out more software, such as StatPlus 2007, Avantage BPM Foundation or Adding Machine, which might be similar to GLPK.