### Introduction

There are a number of different terms used to describe the ways in which functions behave. In this Section we explain some of these terms and illustrate their use.

#### Prerequisites

- understand what is meant by a function
- be able to graph simple functions

#### Learning Outcomes

- explain the distinction between a continuous and discontinuous function
- find the limits of simple functions
- explain what is meant by a periodic function
- explain what is meant by an odd function and an even function

#### Contents

1 Continuous and discontinuous functions and limits2 Periodic functions

3 Odd and even functions