Chapter 6. Operators

In this chapter, we look at operators, which are the symbols such as + (adding), - (subtracting), and * (multiplying).

Operators are like functions in that they do something with values, but they use symbols rather than function names. In the equation 2 + 3, the 2 and the 3 are both operands, and the + is the operator. There are three types of operators: unary, binary, and ternary, which take one, two, and three operands respectively. As you can see, the + operator (used to add numerical values) is a binary operator, because it takes two variables as input.