This preview shows page 1. Sign up to view the full content.
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
This is the end of the preview. Sign up
to
access the rest of the document.
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....
View
Full
Document
This note was uploaded on 03/28/2011 for the course MATH 20C taught by Professor Helton during the Winter '08 term at UCSD.
 Winter '08
 Helton
 Derivative

Click to edit the document details