I am receiving the display message: “Functin not implemented” when I declare my cost function in CVX. No typo there, it really says “functin” and not “function”. It is not an error, just simply a line of text that appears once I tell CVX what to minimize.
Particularly, if we suppose that
cost is a convex function of two CVX variables x and u, then I receive the message when I write
minimize( cost(x,u) ).
I have been using the same CVX model for a few months now with no issue, but all of a sudden I am seeing these lines printed with each run. It has the effect of not applying the cost function, and so I am always solving a feasibility problem when I don’t want to be.
Has anyone seen this before?