Algebra/Chapter 15/Discrete Functions

------------------------ AlgebraChapter 15: Sequences and SeriesSection 1: Discrete Functions Operations of Arithmetic 1.25rem 15.1: Discrete Functions A More Formal Understanding of Functions As you know, a function assigns an input to exactly one output. We defined the set of inputs as the function's domain and the set of outputs as its range. To describe a function f with a domain X and a codomain Y, we use the notation Discrete Functions Up to this point, we have studied what are called continuous functions, which took on certain values on any given interval. Surjections, Injections, and Bijections Inverses