Friday, 9 August 2013

calculate gradient

calculate gradient

I'm trying to understand differentiation. At 9:45 the kind sir is filling
in numbers in this video.
My question is, where is he getting the gradient numbers from when hes
filling in the table? I know it can be calculated by using nx^n-1, but I
don't think hes using it over there because he only explains this at the
time the video reaches 13:09.
Also can someone tell me when differentiating applies? Is it just in
parabolic shapes? (I dont feel like its worth opening a new question for
this)

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