Last modified on 21 September 2007, at 22:31

Programmed Math/Commutative

An operation is commutitive if and only if the order does not affect the result.

For example, addition is commutitive for the real numbers; thus, if a, b are both real:

a + b = b + a

An operation that is not commutitive is subtraction over the reals; ie, the following is not true:

a - b = b - a