A fast and effective differential evolution algorithm

This code includes an newly improved differential evolution (IDE) and FEM for truss structures. IDE which has been successfully applied for truss optimization with frequency constraints. IDE is simple but very effective with fast convergence and good solution. It can be easy to apply for any kinds of engineering optimization problems just replacing the objective and constraint functions of the code.
For more detail of IDE, please refer to the paper:
Ho-Huu V, Vo-Duy T, Luu-Van T, Le-Anh L, Nguyen-Thoi T. Optimal design of truss structures with frequency constraints using improved differential evolution algorithm based on an adaptive mutation scheme. Autom Constr 2016;68:81–94. doi:http://dx.doi.org/10.1016/j.autcon.2016.05.004.