.LTF

.LTF file extension

This is the basic program to work with .LTF extension

LINGO

LINGO LINGO Document

LINGO is designed to build and solve Linear, Nonlinear, Quadratically Constrained, Second Order Cone, Semi-Definite, Stochastic, and Integer optimization models. LINGO's modeling language allows you to express models in a straightforward intuitive manner using summations and subscripted variables... (more)

The program works with the following extensions: ltx, lrp, ltf, lng and ldt