# Tag Info

Accepted

You can use BARON and Knitro for free from the NEOS Server. Also, you have the following options: If you are in the first year of graduation, you can apply for a one-year free graduate student ...
• 8,185

### Linearize a product of an integer variable (not just binary) and a continuous variable?

The McCormick envelope is one possible approach. Another, if the domain of $y$ is not too large, is to use a type 1 Special Ordered Set. Assume that $y\in\lbrace 1,\dots,N\rbrace$. Replace $y$ with\...
• 28.9k

You can also download our Octeract Engine - it's free for students and academic staff and solves a superset of the problem types that BARON and KNITRO do (global optimality for non convex problems + ...
• 11.1k

You can download a 1 month trial licence of Knitro from Artelys website and ask for an extension if needed. Artelys also offers free licenses for teaching programs.

### BARON Error: variables/rows fixed as scaled bounds too close

BARON is having trouble finding a feasible local solution. The $0.100000E+52$ number is the default number used before the first feasible solution is found. The word "scaled" can be misleading here, ...
• 11.1k
1 vote
Accepted

### Large MINLP problem, searching for solver, tried BARON, ANTIGONE, DICOPT

If a deterministic global optimisation solver (such as Baron) reports a local solution, that solution is reliable. If the solver is terminated prematurely, the global solver will return the best ...
• 11.1k
1 vote

### Model Simulation in PYOMO

By reading your edited question, I think you are trying to get feasible solutions(values for the variables that satisfy the system of equations). If it's true, you can simply fix the objective ...
• 8,185

Only top scored, non community-wiki answers of a minimum length are eligible