Ex 1: 2D Gradient Field - What do we see?
Ex. 1: We look at the 2D gradient field of a function z=f(x,y) and see what we can conclude. Can we see extreme values (stationary points). What can say about the growth rate of the function. What is vector scale (and why do we care)? Great graphics with Mathematica - copy&paste: http://geogebrawiki.wikispaces.com/Gr...