unc_n2_camel3.m

it contains many classic Test Problems for Unconstrained Optimization such as camel6,treccani,goldst

function [fval]=unc_n2_camel3(x)
%reference:
%note that you can get the formulation of unc_n2_camel3 from some
%aritcles,such as
%(1)LS Zhang, CK Ng, D Li, WW Tian  'A New Filled Function Method for Global Optimization',
%Journal of Global Optimization,
%
%algorithm:
%below code is  edited according to 
%(1)LS Zhang, CK Ng, D Li, WW Tian  'A New Filled Function Method for Global Optimization',
%Journal of Global Optimization,
%
%solution:
% where the bounds are -3<=x1,x2<=3;
% The global minimum is at x*=(0,0),and f(x*)= 0;
% 

%Copyright:
% programmers:oiltowater.
% It comply with the GPL2.0
% Copyright 2006  oiltowater 



if size(x,1)~=2, 
    error('the row number of x is 2');
end

x1=x(1,1);
x2=x(2,1);

fval=2*x1*x1-1.05*(x1.^4)+(x1.^6)/6-x1*x2+x2.^2;