Concave constraints Nonconvex Nov 25, 2021 P Sujoy Paul Nov 25, 2021 #1 can we use concave constraint in MATLAB CVX programing M Mark L. Stone Nov 25, 2021 #2 There is no such thing as a concave constraint. A constraint is either convex or it’s not. if it’s not, you can’t use it in CVX.