directional derivatives, gradient

Question:directional derivatives, gradient

Posted: laporte bernard 45 Product: Maple

October 22 2014

1) find the direction in which f(x,y) increases most rapidly at the point P(1,2), and find the maximum rate of increase
of f at P.

Interpret 1) using the graph of f.

Let f(x,y) = 2+x^2 +1/4*(y^2)

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