# Product rule

### From Conservapedia

This article/section deals with mathematical concepts appropriate for a student in late high school or early university. |

The **Product Rule** is a rule in calculus pertaining to the derivative of two variables or functions. The Leibniz notation is as follows:

The product rule in words is the derivative of uv is u multiplied by the derivative of v plus the derivative of u multipled by v. The commutative property allows the terms to be interchanged, which occasionally leads to introduction in reverse.