partial differentiation.

[amriths04]

hello friends,
under what conditions is...

(d ²F ) (d ²F)
------ = ---------
(dX.dY) (dY.dX )

where d denotes "doh" or partial differentiation..


??

thank you in advance,

 

[pkalavakuru]

Hey

We prounce it as doh..nothing other than an partial differentiation .

 

[amriths04]

no.. that was not my question. my question was under what conditions that equation will be satisfied?

thank you,

Hey

We prounce it as doh..nothing other than an partial differentiation .

 

[hakeen]

Hi,
For being partial differentiation, the variable should be independent of each other.

 

[claudiocamera]

If the function is twice differentiable , and once x and y are independent variables, I think under any conditions the equallity holds.