unc_n2_rosenbrock1.m

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

function [fval]=unc_n2_rosenbrock1(x)
%reference:
%note that you can get the formulation of unc_n2_rosenbrock1 from some
%aritcles,such as
%(1)
%algorithm:
%below code is  edited according to 
%(1)
%solution:
% where the bounds are -3<=x1,x2<=3;
% The global minimum is at x*=( 1,1) 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=0.5*(x1.^2-x2).^2+(x1-1).^2;