Help! how to implement this concave function in cvx

1

f(t, E)=tlog(1+∑Ei/t), where ∑Ei=E1+E2+…+En, Ei>=0, t>0
is there any idea that can implement such a function in CVX?
Thanks!

2

Edit: Whoops, I mis-read your function

3

I have already know matlab. However, there is an error when I enter this function. I think cvx may not address the function where the variables are in the form of fraction. Do you know how can I tansform this function or enter which form into the CVX？ Thank you very much！

4

-rel_entr(t,t+sum(E))
where E = [E_1;E_2;...;E_n]

5

Thank you very much. That seems make sense！ I will try it in the simulation.