I have a variable V(T,N), and my constraints are

for i=1:T

for j=1:N

abs(V(i,j))<=1;

end

end

My objective function is convex and my code runs on cvx, however it takes lot of time to produce the output, I would like to know if the above constraint on matrix V, such that each element has magnitude less than or equal to 1 can be vectorized.