One distinguishes linear and not-linear optimization (linear and not-linear programming), ever after, whether the goal-function and the affiliated (un -) equations are linear or not-linear.
Optimization-tasks are particularly in the business and political economy as procedures of the Operations-Research of importance.
My academy of arts under the railroad-bridge.
See or be seen? Is that the question here?
I rather shut the window. It reeks of rat piss namely.