ga_f26.m

书籍代码:遗传演算法原理与应用_活用MATLAB(Source Code)

function PI=GA_f26(x)
% Fitness function evaluation of Example 2-6
% See P.218 of King's Computational Intelligence
% in Control Engineering

% PenChen Chou, 6-30-2001

global MIN_offset
PI=x(1)^2+x(2)^2-0.3*cos(3*pi*x(1))-0.4*cos(4*pi*x(2))+0.7;
if MIN_offset>0
    PI=MIN_offset-PI;
end;