I need to maximize the function

maximize (x_1^{a_1}*x_2^{a_2}*...*x_N^{a_N})

s.t 1/2((x_n-1)/y_n+y_nz_n^2)<=hg

h, y and z are given.

My matlab code is

cvx_solver sedumi

cvx_begin

variables x(N), g(4,1)

maximize (?)

subject to
???

cvx_end

I’m sorry but it simply does not work for you to use this forum to obtain a basic tutorial for CVX. In fact, it seems that you may be unfamiliar with MATLAB as well, and we cannot offer support for that. Please read the users’ guide, please browse the example library.