1 Using a scientific calculator 1 1.1 Introduction 1 1.2 Keys of a scientific calculator 1 2 Numbers 8 2.1 Introduction 8 2.2 History of numbers 8 2.3 Positive numbers, negative numbers and integers 9 2.4 Prime and composite numbers 10 2.5 Square nu
Table of Contents 1. Introduction....................................................................................................................................................2 1.1 What's Special About UNIX?....................................