20Csupp3 - f xy and f yx will be equal. For an example...

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Notation for partial derivatives 2 f ∂x 2 = f xx , 2 f ∂y∂x = f xy , 2 f ∂x∂y = f yx , 2 f ∂y 2 = f yy . In any case, for most of the functions we work with, the mixed partials
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Unformatted text preview: f xy and f yx will be equal. For an example where mixed partial derivatives are NOT equal, see homework problem #81 in Section 14.3....
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This note was uploaded on 03/28/2011 for the course MATH 20C taught by Professor Helton during the Winter '08 term at UCSD.

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