A new proof of Ackermann's formula from control theory
Marius Costandin, Petru Dobra, Bogdan Gavrea · Studia Universitatis Babes-Bolyai Matematica · 2017
This paper presents a novel proof for the well known Ack- ermann's formula, related to pole placement in linear time invariant systems. The proof uses a lemma [1], concerning rank one updates for matrices, often used to eciently compute the determinants. The proof is given in great detail, but it can be summarised to few lines.