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Thread: Partial derivatives

  1. #1
    Junior Member
    Joined
    Nov 2006
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    48

    Partial derivatives



    I don't seem to understand the function here
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  2. #2
    Senior Member Peritus's Avatar
    Joined
    Nov 2007
    Posts
    397
    just use the chain rule:

    $\displaystyle
    \begin{gathered}
    f_x = g_u u_x + g_v v_x + g_w w_x \hfill \\
    f_y = g_u u_y + g_v v_y + g_w w_y \hfill \\
    \end{gathered}
    $
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