H = [ -6, 0, 0, 0, 0, 0, 0, 0, 0, 0; 4, -6, 0, 0, 0, 0, 0, 0, 0, 0; 4, 4, -6, 0, 0, 0, 0, 0, 0, 0; 4, 4, 4, -6, 0, 0, 0, 0, 0, 0; 0, 0, 0, 0, 2, 0, 0, 0, 0, 0; 0, 0, 0, 0, 0, 2, 0, 0, 0, 0; 0, 0, 0, 0, 0, 0, 2, 0, 0, 0; 0, 0, 0, 0, 0, 0, 0, 2, 0, 0; 0, 0, 0, 0, 0, 0, 0, 0, 2, 0; 0, 0, 0, 0, 0, 0, 0, 0, 0, 2]; lb = [0; 0; 0; 0; 2; 1; 1; 1; 1; 2]; ub = [3; 3; 3; 3; 2; 3; 3; 3; 3; 2]; A_in = [ 1, -1, 0, 0, -1, 0, 0, 0, 0, 0; -1, 1, 0, 0, -1, 0, 0, 0, 0, 0; 1, 0, -1, 0, 0, -1, 0, 0, 0, 0; -1, 0, 1, 0, 0, -1, 0, 0, 0, 0; 0, 1, -1, 0, 0, 0, -1, 0, 0, 0; 0, -1, 1, 0, 0, 0, -1, 0, 0, 0; 1, 0, 0, -1, 0, 0, 0, -1, 0, 0; -1, 0, 0, 1, 0, 0, 0, -1, 0, 0; 0, 1, 0, -1, 0, 0, 0, 0, -1, 0; 0, -1, 0, 1, 0, 0, 0, 0, -1, 0; 0, 0, 1, -1, 0, 0, 0, 0, 0, -1; 0, 0, -1, 1, 0, 0, 0, 0, 0, -1]; [x, obj, info, lambda] = qp(ones([10, 1]), H, zeros([10, 1]), [], [], lb, ub, [], A_in, zeros([12, 1]))