The integer and nonlinear solvers in LINGO 3.1 have been enhanced for greater speed.

The integer solver in LINGO 3.1 has a number of new techniques to improve its speed and efficiency. Many integer models that could not be solved in several hours now solve in a few minutes or less. For additional information on the new enhancements to the integer solver, see the Faster Integer Solver article.

Performance on the nonlinear solver in LINGO has also been improved. LINGO 3.1 is more efficient in solving nonlinear models -- especially large, sparse models. Many nonlinear models solve three to ten times faster.

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