PlatEMO/Problems/Single-objective optimization/Simple SOPs/SOP_F5.m
classdef SOP_F5 < PROBLEM
% <1999> <single> <real> <expensive/none>
% Generalized Rosenbrock's function

%------------------------------- Reference --------------------------------
% X. Yao, Y. Liu, and G. Lin. Evolutionary programming made faster. IEEE
% Transactions on Evolutionary Computation, 1999, 3(2): 82-102.
%------------------------------- Copyright --------------------------------
% Copyright (c) 2025 BIMK Group. You are free to use the PlatEMO for
% research purposes. All publications which use this platform or any code
% in the platform should acknowledge the use of "PlatEMO" and reference "Ye
% Tian, Ran Cheng, Xingyi Zhang, and Yaochu Jin, PlatEMO: A MATLAB platform
% for evolutionary multi-objective optimization [educational forum], IEEE
% Computational Intelligence Magazine, 2017, 12(4): 73-87".
%--------------------------------------------------------------------------

    methods
        %% Default settings of the problem
        function Setting(obj)
            obj.M = 1;
            if isempty(obj.D); obj.D = 30; end
            obj.lower    = zeros(1,obj.D) - 30;
            obj.upper    = zeros(1,obj.D) + 30;
            obj.encoding = ones(1,obj.D);
        end
        %% Calculate objective values
        function PopObj = CalObj(obj,PopDec)
            PopObj = sum(100*(PopDec(:,2:end)-PopDec(:,1:end-1).^2).^2+(PopDec(:,1:end-1)-1).^2,2);
        end
    end
end