I'm trying to find the directional derivative of the function: $\displaystyle f(x,y,z)=x^3-xy^2-z $ at the point $\displaystyle P_0(1,1,0)$ Any help would be appreciated. Thanks!
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Originally Posted by btgebo I'm trying to find the directional derivative of the function: $\displaystyle f(x,y,z)=x^3-xy^2-z $ at the point $\displaystyle P_0(1,1,0)$ Any help would be appreciated. Thanks! Do you know the formula for calculating a directional derivative? Please quote it from your textbook or class notes.
Also, you need a direction in which to find the directional derivative. The direction needs to be a unit vector.
thanks for the help guys. turns out the paper with the problem didn't have the (necessary) vector equation on it. I figured it out once i got all the information
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