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Re: How to introduce a Functional with the results with Solve command?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89286] Re: [mg89284] How to introduce a Functional with the results with Solve command?
  • From: "W_Craig Carter" <ccarter at mit.edu>
  • Date: Tue, 3 Jun 2008 07:31:17 -0400 (EDT)
  • References: <200806031046.GAA26745@smc.vnet.net>

Hello Kaibin,
I am not sure what you  are asking for, but perhaps this functional
construction will provide a hint:

sol5[f_, g_, x_] := 3 f[x] - g[f[x]]
D[sol5[p, q, z], z]

On Tue, Jun 3, 2008 at 6:46 AM, Kaibin Fu <kaibinfu at gmail.com> wrote:
> I get the expression of urm which is a function of rom.
>
> sol3=Solve[sol2 == 0, urm];
> sol4[rom_] = sol3[[1]][[1]][[2]];
>
> Because rom is a function of x1, I want to take the derivative of the following functional with respect of x1.
>
> sol5[x1_]=3*rom -sol4[rom]
>
> How should I do it?
>
> If convenient, please send an email to
>
> kaibinfu at gmail.com
>
> thanks.
>
>



-- 
W. Craig Carter


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