Product Rule

In calculus, the product rule is a formula used to find the derivatives of products of two or more functions. It may be stated thus:

or in the Leibniz notation thus:

.

In the notation of differentials this can be written as follows:

.

The derivative of the product of three functions is:

.

Read more about Product Rule:  Discovery By Leibniz, Examples, A Common Error, Proof of The Product Rule, Applications

Famous quotes containing the words product and/or rule:

    The writer’s language is to some degree the product of his own action; he is both the historian and the agent of his own language.
    Paul De Man (1919–1983)

    Roman, remember that you shall rule the nations by your authority, for this is to be your skill, to make peace the custom, to spare the conquered, and to wage war until the haughty are brought low.
    Virgil [Publius Vergilius Maro] (70–19 B.C.)