Abstract:
In this paper we present some brief definitions, concepts and properties that can be used to solve the problems with limits of functions. The concept of the limit of a function at a point is rooted in the XVII and XVIII centuries. The definition of the limit of a function at a point was formulated by Karl Weierstrass, using the concept of a point neighborhood. The calculation of limits of functions supposes knowledge of methods for determining the limits of elementary functions, limits of remarkable and of the algorithms to eliminate non-determinations that may arise in this context.
