http://img292.imageshack.us/img292/7396/pdht7.jpg

I don't seem to understand the function here

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- Apr 14th 2008, 10:22 AMsomestudent2Partial derivatives
http://img292.imageshack.us/img292/7396/pdht7.jpg

I don't seem to understand the function here - Apr 14th 2008, 11:43 AMPeritus
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}

$