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## Main Question or Discussion Point

How do you visualize a second order partial derivative with respect to x and then y?

fxy or fyx?(same thing, but how to visualize)

fxy or fyx?(same thing, but how to visualize)

- Thread starter yitriana
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- #1

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How do you visualize a second order partial derivative with respect to x and then y?

fxy or fyx?(same thing, but how to visualize)

fxy or fyx?(same thing, but how to visualize)

- #2

tiny-tim

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(try using the X

You can visualise fHow do you visualize a second order partial derivative with respect to x and then y?

fxy or fyx?(same thing, but how to visualize)

f

- #3

Hurkyl

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Gold Member

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For example, the function

f(0,0) = 0

f

f

f

f

f

and all other derivatives are zero.

So, in some sense, the behavior of this function near

- #4

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Thank you for the replies. tiny-tim's explanation was especially helpful.

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