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Old 2006-05-29, 13:41   #1
Damian
 
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May 2005
Argentina

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Default Multivariable differentiability

Sorry if this is a bit off-topic.
I searched the web for the proof that if a multivariable function has partial derivatives, and they are continuous, then it is differentiable. (and f is called a C1 function)
Any help will be appreciated.
Damian.
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