how to make vector sum to one?

I'm using fmincon to minimize the varience of a portfolio. As such, how would I be able to use TWO linear equality constraints?

Moreover, how would I be able to set the sum of W(which is currently a NX1 vector) to 1.00?

I'm reading something where it says to use w'and a bold 1 to equal 1.00.

please help thanks.

Answer 1

[George Papazafeiropoulos]

W'*ones(N,1)=1