Mathematical operators

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The mathematical operators perform basic math operations, such as addition and subtraction. The values that the operators act on are called operands.

Syntax and Operation

Addition

The addition operator + (plus sign) returns the sum of two values (i.e., it adds two values). In the following example, the value 12 would be stored in the variable x.

x = 10 + 2;

Note that the order of the operands is not important (that is, a + b is the same as b + a).

Subtraction

The subraction operator - (minus sign) returns the difference of two values (i.e., it subracts the right-hand value from the left-hand value). In the following example, the value 8 would be stored in the variable x.

x = 10 - 2;

Note that the order of the operands is important (that is, a - b is not the same as b - a).

Multiplication

The multiplication operator * (asterisk) returns the product of two values (i.e., it multiplies one value by the other). In the following example, the value 20 would be stored in the variable x.

x = 10 * 2;

Note that the order of the operands is not important (that is, a * b is the same as b * a).

Division

The division operator / (forward slash) returns the quotient of two values (i.e., it divides the left-hand value by the right-hand value). In the following example, the value 5 would be stored in the variable x.

x = 10 / 2;

Note that the order of the operands is important (that is, a / b is not the same as b / a).

Modulus

The modulus operator % (percent sign) returns the remainder of a division operation of two values. In the following example, the value 2 would be stored in the variable x, because 4 goes into 10 twice (4 * 2 = 8), with 2 left over.

x = 10 % 4;

Note that the order of the operands is important (that is, a % b is not the same as b % a).

See Also