Problem status:

  • primal_dual_feasible: Solution exists – specs are attained
  • dual_infeasible: No solution exists – specs are not attained
  • unknown:
    • Numerical issue (poles near the unit circle, is too small)
    • There are too many poles
    • is too big

Solution status:

  • primal_dual_optimal: Found the optimal solution
  • dual_infeasible: No solution exists
  • unknown: Numerical issues