Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Dec 17, 2011
All gradient fields are vector fields, but not vice-versa. We look at 2 (really cool) vector fields and see if we can "see" why they are not gradient fields.Great graphics with Mathematica - copy&paste: http://geogebrawiki.wikispaces.com/Gr...