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#1 Help Me ! » chain rule on partial differentiation » 2006-09-05 04:29:11

tmnt007
Replies: 1

To whom it may concern,

I have been struggling to understand the chain rule on PARTIAL differentiation. With an example of a function f(u,v) where u(x,y) and v(x,y),

why is fx = fu*ux + fv*vx please??.... why '+' but not multiplication or division or substraction?

where
fx = df/dx (in partial derivatives)
fu = df/du (in partial derivatives)
ux=du/dx (in partial derivatives) and similar for fv and vx.

i look forward to hear and discuss thank you.

Regards,
tmnt007

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