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Re: Best syntax for derivative

  • To: mathgroup at smc.vnet.net
  • Subject: [mg96427] Re: [mg96386] Best syntax for derivative
  • From: "Louis A. Talman" <talmanl at mscd.edu>
  • Date: Fri, 13 Feb 2009 03:44:40 -0500 (EST)
  • References: <200902121141.GAA08658@smc.vnet.net>

Maybe you want

Derivative[0,1,0][f][x, y, z]

???



On Feb 12, 2009, at 4:41 AM, Aaron Fude wrote:

> Hi,
>
> Suppose I have a function of three variables
>
> f[x_, y_, z_]:=Sin[x y z]
>
> And I want to construct g[x, y, z] which is the partial derivative  
> of f
> [] with respect to y. I do
>
> f[x_, y_, z_] := Sin[x y z]
> g[x_, y_, z_] := D[f[x, temp, z], temp] /. temp -> y
>
> but I'm sure there is something better. Something along the lines of
>
> g = Partial[f, 2]
>
> Many thanks in advance.
>
> Aaron
>
>



--Lou Talman
   Department of Mathematical and Computer Sciences
   Metropolitan State College of Denver

  <http://clem.mscd.edu/%7Etalmanl>




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