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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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