galleryscr.pl is a script that fetches images from an online gallery or local directory structure and creates a random image collage. It features inclusion or exclusion of specific images, random or sequential selection of images, and various output options. It can be useful for creating images for a screensaver.
SCIP (Solving Constraint Integer Programs) is a framework for constraint integer programming oriented towards the needs of mathematical programming experts who want to have total control of the solution process and access detailed information down to the guts of the solver. It integrates techniques from mixed integer programming, constraint programming, and SAT solving. It can also be used as a pure MIP solver or as a framework for branch-cut-and-price. In order to use it, you have to link to an LP solver. It currently supports CLP, CPLEX, Mosek, Soplex, and XPress-MP.