griewank.m

包括建初始种群

function  y=Griewank(x)
[m n]=size(x);
for i=1:m
  for j=1:n
      t1(i,j)=cos(x(i,j)/sqrt(i));
      t2(i,j)=cumprod(t1(i,j));
  end
end

for i1=1:m
    t3(i,1)=t2(i,n);
end
y=sum((x.*x)')'/4000-t3;