% Ursem 1 function L. LAURENT -- 24/02/2017 -- luc.laurent@lecnam.net
0001 %% Ursem 1 function 0002 % L. LAURENT -- 24/02/2017 -- 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 %1 minimum global: f(1.69714,0)=-4.8168 0025 % 0026 %Design space -2.5<x1<3 -2<x<2 0027 0028 function [p,dp] = funUrsem01(xx) 0029 0030 %constants 0031 a=2; 0032 b=pi/2; 0033 c=3; 0034 d=1/2; 0035 0036 %evaluation and derivatives 0037 x=xx(:,:,1); 0038 y=xx(:,:,2); 0039 % 0040 pa=-sin(a*x-b); 0041 pb=-c*cos(y); 0042 % 0043 p=pa+pb-d*x; 0044 0045 if nargout==2 0046 % 0047 dp=zeros(size(xx)); 0048 % 0049 dp(:,:,1)=-a*cos(a*x-b)-d; 0050 dp(:,:,2)=c*sin(y); 0051 end 0052 end 0053