  We present an algorithm for a time-delayed feedback control design to
stabilize periodic orbits with an odd number of positive Floquet exponents in
autonomous systems. Due to the so-called odd number theorem such orbits have
been considered as uncontrollable by time-delayed feedback methods. However,
this theorem has been refuted by a counterexample and recently a corrected
version of the theorem has been proved. In our algorithm, the control matrix is
designed using a relationship between Floquet multipliers of the systems
controlled by time-delayed and proportional feedback. The efficacy of the
algorithm is demonstrated with the Lorenz and Chua systems.
