% Kursawe 1st objective function L. LAURENT -- 09/05/2018 -- luc.laurent@lecnam.net
0001 %% Kursawe 1st objective function 0002 %L. LAURENT -- 09/05/2018 -- luc.laurent@lecnam.net 0003 0004 % sources available here: 0005 % https://bitbucket.org/luclaurent/optigtest/ 0006 % https://github.com/luclaurent/optigtest/ 0007 0008 % optiGTest - set of testing functions A toolbox to easy manipulate functions. 0009 % Copyright (C) 2017 Luc LAURENT <luc.laurent@lecnam.net> 0010 % 0011 % This program is free software: you can redistribute it and/or modify 0012 % it under the terms of the GNU General Public License as published by 0013 % the Free Software Foundation, either version 3 of the License, or 0014 % (at your option) any later version. 0015 % 0016 % This program is distributed in the hope that it will be useful, 0017 % but WITHOUT ANY WARRANTY; without even the implied warranty of 0018 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0019 % GNU General Public License for more details. 0020 % 0021 % You should have received a copy of the GNU General Public License 0022 % along with this program. If not, see <http://www.gnu.org/licenses/>. 0023 0024 function [p,dp]=funObjKursawe1(xx) 0025 0026 %constants 0027 a=10; 0028 b=0.2; 0029 0030 %responses and derivatives 0031 xxx=xx(:,:,1); 0032 yyy=xx(:,:,2); 0033 zzz=xx(:,:,3); 0034 % 0035 tda=xxx.^2+yyy.^2; 0036 tdb=yyy.^2+zzz.^2; 0037 % 0038 sa=sqrt(tda); 0039 sb=sqrt(tdb); 0040 % 0041 etda=-a*exp(-b*sa); 0042 etdb=-a*exp(-b*sb); 0043 % 0044 p=etda+etdb; 0045 0046 if nargout==2 0047 % 0048 dp(:,:,1)=-b*etda.*xxx./sa; 0049 dp(:,:,2)=-b*etda.*yyy./sa-b*etdb.*yyy./sb; 0050 dp(:,:,3)=-b*etdb.*zzz./sb; 0051 end 0052 end