The Premium Solver
Once the Premium Solver is installed, you can solve nonlinear optimization
problems (NLPs) of up to 400 variables (or changing cells) and 200 constraints in
addition to bounds on the variables, and linear optimization problems (LPs) of
up to 800 variables with no limit on the number of constraints. User interface
improvements make it easier to set up your models and give you better control
of various aspects of the solution process. Solution speed is improved for all
types of problems, especially for problems with all linear and integer
constraints.