# Directional Derivatives and the Gradient Vector

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More Lessons for Calculus

Math Worksheets

A series of free Calculus Video Lessons.
Directional derivative, and the corresponding definition of the gradient vector.

The Gradient Vector - Notation and Definition
This video talks about the directional derivative, and the corresponding definition of the gradient vector.
Introduction to the directional derivatives and the gradient

Finding the Directional Derivative 
This video gives the formula and do an example of finding the directional derivative that corresponds to a given angle.
Multivariable Calculus: Directional derivative of $f(x,y)$
This video presents an example and calculates the derivative of a function of two variables in a particular direction. The derivative of $f(x,y) := 1 - x^2/2 - y^4/4$ in the direction of the vector ${\bf u} := (1,1)$.

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