Calc III Lesson 17 Dir Deriv and Gradient.mp4

Download the pdf file of notes for this video: http://math.sci.ccny.cuny.edu/docs?na... For more information, see http://math.sci.ccny.cuny.edu/pages?n... Table of Contents: 01:10 - Directional derivative limit definition 05:36 - Computing the directional derivative 07:44 - Gradient of f(x,y) 14:14 - Properties of the gradient 15:41 - Gradient vector fields 18:32 - Gradient of f(x,y,z) 20:06 - Finding tangent planes to level surfaces