2. Design optimization algorithms

It's important to note that there is no one perfect optimization algorithm that will solve all electromechanical design problems accurately and reliably. Indeed, these design problems are by nature very different, leading to very different associated mathematical models. As we shall see in the following, optimization methods can be based on the calculation of derivatives, if these are computable (if the functions are differentiable) and inexpensive in terms of CPU time.

Note that this is generally not the case if the function or constraint evaluations are carried...