Matrix integration using integral(M​ATLAB_func​tion)

Dear sir,

I have a question that if the function is a matrix function like,

f=@(x,y) K_2*exp(A*(x(i)-y))*B*u;

where K_2 is a (3*6) matrix,A is a (6*6) matrix ,B is (6*3) and u is (3*1) matrix. I want to find g=@(x) integral(@(y) f(x,y),0,x(i)) but when I use this it is not giving the output as a (3*1) vector?

Finally I want to find w=u-(K_2*exp(A*x(i))*X) where X is (6*1). How we can use the integral function to solve this problem.