最近在做毕业设计，想请问一下下面代码表示的是怎样的函数，请各位大侠帮帮忙啊！！！！！！！！！
function f = shufcn(y)
for j =1:size(y,1)
f(j) =0.0;
x = y(j,
;
temp1 = 0;
temp2 = 0;
x1 = x(1);
x2 = x(2);
for i =1:5
temp1 = temp1+i.*cos((i+1).*x1+i);
temp2 = temp2+i.*cos((i+1).*x2+i);
end
f(j) =temp1.*temp2;
end