3
Functions
LEARNING OBJECTIVES
After reading this chapter, you will be conversant with:
- Introduction
- Definition
- Domain and Range of a Function
- Difference Between Relation and Function
- Different Types of Functions (or Mappings) Constant Function
- Composition of Functions
- Functions for Computer Science
- Some Special Functions Used in Discrete Mathematics
- Some Important Theorems and Problems
- Ackermann’s Function
- Fuzzy Sets
- Time Complexity of Algorithm
- Connectivity Relation
3.1 INTRODUCTION
A concept of fundamental importance next to the notation of ‘set’ is that of a function. The knowledge of function plays a key role in several branches of mathematics and computer science. The idea of function is also used in our everyday life. When we compute ...
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