So, i change all structure in this project, in directory src (SOURCE CODE) we have two modules, Core and Subjects. The module Core is divided in more two submodules MathBase and ResultsTables, MathBase contains the base data structures like Matrix, Polynomial, OrderedPair and yours several mothods for handle. ResultsTables have the resultsTable that are used to bring information about operations. The module Subject is divided in more tow submodules LinearAlgebra and Numerical Calculations that do operations of linear algebra like linear systems resolution, interpolation, polynomial root and others respectively