Classes for Robust Two-Dimensional Minimization

The use of the technique proposed here allows an algorithm that is robust even for the two-dimensional case to be obtained and hence to solve multimodal problems with functions undefined somewhere, and including certain very narrow valleys and discontinuities in derivatives. 

The class implemented in the BzzMath library for robust two-dimensional 

This class is designed to search for the two-dimensional nunimization of a function in the following cases  

Once an object from this class has been defined, it can be initialized using the operator () with the same argument as the last three constructors. For example 

When the values 1,2 or 2,1 are not explicit, the object automatically performs both searches. This option is clearly computationally heavier, but offers a greater guarantee that the search will be successful. 

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