A can be written one by one when A is smaller, but if A is larger,as A = 50, how should I describe it?

function Pe= cvx_Pe(Ba1,ba2,Ba3,Pe,A,Pth)

cvx_begin quiet

cvx_precision low

variable Pe(E,1) complex;

minimize inv_pos((Pe*bae2+Ba3)/Ba1)%I don’t know what to do here

subject to

sum(Pe)<=Pth;

cvx_end

end