This paper deals with the description of a new method for calculating the functional output-controllability. It is computed
by means of the rank of a certain constant matrix which can be associated to the system. Moreover, a new method for
the pointwise output-controllability determination by means of constructing the output-controllability matrix associated
to the system using the residues of the given linear system is developed. Finally, a simple physical example is presented
Garcia-Planas, M.I.; Domínguez, J. Alternative tests for functional and pointwise output-controllability of linear time-invariant systems. "Systems & control letters", 2013, vol. 62, p. 382-387.