% Custom function 6 L. LAURENT -- 06/11/2018 -- luc.laurent@lecnam.net
0001 %% Custom function 6 0002 %L. LAURENT -- 06/11/2018 -- 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 % 0025 %global minimum : f(x)=-0.4366 for x= 2.9084 0026 %local minima 0027 % f | x 0028 % 0.4971 | -1 0029 % -0.4366 | 2.9084 0030 % 0.5284 | 9.0759 0031 % 1.3305 | 15 0032 % 0033 % 0034 % 0035 %Design space: -1<xi<15 0036 % 0037 0038 0039 function [p,dp]=funCustom06(xx) 0040 %constants 0041 a=10; 0042 b=0; 0043 c=1; 0044 0045 %evaluation and derivatives 0046 % 0047 p=exp(-xx/a).*cos(c*xx)+1/a*xx+b; 0048 0049 % 0050 if nargout==2 0051 % 0052 dp=-exp(-xx/a).*(c*sin(c*xx)+1/a.*cos(c*xx))+1/a; 0053 end 0054 % 0055 end