C++ How to Program, 10/e

2.6 Arithmetic

Most programs perform arithmetic calculations. Figure 2.9 summarizes the arithmetic operators. Note the use of various special symbols not used in algebra. The asterisk (*) indicates multiplication and the percent sign (%) is the remainder operator, which we’ll discuss shortly. The arithmetic operators in Fig. 2.9 are all binary operators—they each take two operands. For example, the expression number1 + number2 contains the binary operator + and the two operands number1 and number2.

Fig. 2.9 Arithmetic operators.

Operation	Arithmetic operator	Algebraic expression	C++ expression
Addition	+	f + 7	f + 7
Subtraction	-	p – c	p - c
Multiplication	*	bm or b · m	b * m
Division	/	x / y or $\frac{x}{y}$ or x ÷ y	x / y
Remainder ...