Here is my code:
cvx_begin
variable mat(2,2) complex semidefinite
maximize(log_det(mat))
subject to
trace(mat) <= 1;
cvx_end
which is definitely a convex problem with a solution. However what I get is always as follows:
Successive approximation method to be employed.
SDPT3 will be called several times to refine the solution.
Original size: 49 variables, 11 equality constraints
1 exponentials add 7 variables, 4 equality constraints
Cones | Errors |
Mov/Act | Centering Exp cone Poly cone | Status
--------±--------------------------------±--------
0/ 0 | 0.000e+00 0.000e+00 0.000e+00 | Unbounded
Status: Unbounded
Optimal value (cvx_optval): +Inf
PS:my cvx version is 3.0beta. I tried the code on other PC with 3.0beta but get a right solution !!
I don’t know where the problem is.