Definition:Derivative

Complex Functions
The definition for a complex function is similar to that for real functions.

Ordinary Derivative
Such a derivative as has been described here is known as a ordinary derivative.

This is to distinguish it from a Partial Derivative, which applies to functions of more than one independent variables.

Also see

 * Differentiable
 * Differentiation


 * Partial Derivative
 * Equivalence of Definitions of the Derivative