Download or read book Essentials of Nonlinear Control Theory written by James R. Leigh and published by IET. This book was released on 1983 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following topics are dealt with: nonlinearity: dynamic systems; describing function method; phase plane portrait; linearisation ;nonlinear second-order system linearisation; envelope methods; Limit cycles; relaxation oscillations; Lienard's equation; gradient systems and system decomposition.