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Re: The value of a partial derivative


Hi,

D[x*y*Sin[x + y], y] /. {x -> 1, y -> Pi} // N


??

Regards
  Jens

Anastasius Moumtzoglou wrote:
> 
> Hi,
> 
> I have derived the partial derivative of an expression and I would like
> to give values to the parameters in order to get a value for the partial
> derivative. Is there a way I could do it using Mathematica 3.0?


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