GAMS World Forum

Hi, I've been a bit lost with creating some iterative method for mesh refinement. I'm looking at orthogonal collocation methods to optimise certain trajectories, and have my sets which help describe these relationships, but I don't know how I would go about adding points between points in these sets...

I am having trouble finding a way to reference elements in a dynamic set. What I would like to do is introduce something resembling a variable step size in my optimization. The way I have approached this so far is to define a set that has all possible divisions (half-steps) and conditionally activat...