Machine generated contents note: 1 Classical Statistical Procedures -- 1.1 Introduction -- 1.2 The Score Vector, the Information Matrix, and the Cramer-Rao -- Lower Bound -- 1.3 Maximum Likelihood Estimators and Test Procedures -- 1.4 Nuisance Parameters -- 1.5 Differentiation and Asymptotics --...

We present a method to calculate formal symmetries of dynamical systems which are represented by polynomials in n dimensions. The technique is based on Lie transformations for ordinary differential equations. The procedure is illustrated with two applications.