Calculate the directional derivatives of at (1,2,-1) in the direction
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Originally Posted by ottmar0 Calculate the directional derivatives of at (1,2,-1) in the direction Start by applying the basic definition: .
Originally Posted by ottmar0 Calculate the directional derivatives of at (1,2,-1) in the direction First find the Gradient: Thus, the gradient at would be Now, the directional derivative is equal to Does this make sense?
you can solve the problem and show the steps because my test is in about 8 hrs.
Originally Posted by ottmar0 you can solve the problem and show the steps because my test is in about 8 hrs. You have already been shown exactly how to do it. If you refering to my post, I suggest in future that to avoid confusion you quote the post you're replying to.
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