Quadratic problems
Quadratic programming (QP) models can contain quadratic objectives and quadratic constraints, with continuous and discrete decision variables.
A set of quadratic examples (no data files)
The examples are:
A mixed integer quadratic program (MIQP): examples/opl/miqpex1.
A quadratic program (QP) with a quadratic objective: examples/opl/qpex1.
The same QP with one added quadratic constraint giving a quadratically constrained program (QCP): examples/opl/qcpex1.
Game of Life Problem
A basic program for the game of life with birth constraints (model file only): examples/opl/lifegameip.
See also http://www.math.com/students/wonders/life/life.html