(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The changing variable formula in partial derivative

f(u,v)

x=x(u,v)

y=y(u,v)

(∂f/∂x)_{y}= (∂f/∂u)_{v}(∂u/∂x)_{y}+ (∂f/∂v)_{u}(∂v/∂x)_{y}

I khow the how chain rule works, but I don't know why in the (∂f/∂u) v is constant and in the (∂u/∂x) y is constant

2. Relevant equations

3. The attempt at a solution

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# Homework Help: How Partial Derivative Changing Variable Formula works ?

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