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Math Help - Conceptual doubt about directional derivative.

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    Conceptual doubt about directional derivative.

    is this theorem true if the function is non differentiable function. if yes please give proof for the above and if not please provide an example.
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    Last edited by mr fantastic; October 17th 2011 at 02:18 PM. Reason: Edited title.
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    Re: Conceptual doubt about directional derivative.

    Quote Originally Posted by saurabhtmz View Post
    is this theorem true if the function is non differentiable function. if yes please give proof for the above and if not please provide an example.
    If it was true for non-differentiablity then the theorem would say so.

    It looks to me like most of your questions should be asked to your instructor.
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