C# 7.0 All-in-One For Dummies

Chapter 4

Smooth Operators

IN THIS CHAPTER

Performing a little arithmetic

Doing some logical arithmetic

Complicating matters with compound logical operators

Mathematicians create variables and manipulate them in various ways, adding them, multiplying them, and — here’s a toughie — even integrating them. Chapter 2 of this minibook describes how to declare and define variables. However, it says little about how to use variables to get anything done after you declare them. This chapter looks at the operations you can perform on variables to do some work. Operations require operators, such as +, –, =, <, and &. This chapter also discusses arithmetic, logical, and other types of operators.

Performing Arithmetic

The set of arithmetic operators breaks down into several groups: the simple arithmetic operators, the assignment operators, and a set of special operators unique to programming. After you digest these, you also need to digest a separate set of logical operators. Bon appétit!

Simple operators

You most likely learned in elementary school how to use most of the simple operators. Table 4-1 lists them. Note: Computers use an asterisk (*), not the multiplication sign (×), for multiplication. ...