Interactive Example of Tangent Plane with Vectors

As always with these special examples, you don't have to worry about understanding the code here.  Just evaluate the next cell to start the example.  Then collapse this subsection (so you don't have to look at the messy commands) and continue reading the lab.

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f[x_, y_] = 2y * Exp[-x^2 - y^2] ; gf[x_, y_] = {D[f[x, y], x], D[f[x, y], y]} ; (* Gradient o ... "MOUSE_DRAG_ACTION=ROTATE", "MAGNIFICATION=1"}] ; EndJavaBlock[] ; Clear[g] ;

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Created by Mathematica  (November 6, 2004)