Re: a problem about NDSolve and NIntegrate
- To: mathgroup at smc.vnet.net
- Subject: [mg79973] Re: a problem about NDSolve and NIntegrate
- From: ben <benjamin.friedrich at gmail.com>
- Date: Fri, 10 Aug 2007 01:39:46 -0400 (EDT)
- References: <f9emog$lpq$1@smc.vnet.net>
Dear Lynn,
please provide a short, but self-contained
code example of your problem.
Bye
Ben
On 9 Aug., 11:28, lynn <lynn0... at gmail.com> wrote:
> Hello,
>
> I'm tring to solve a diffrential equation with
>
> its upper boundary as a variable.
>
> and then I want to integrate it, and define
>
> it as a funcion with two variable.
>
> However, I don't know why it doesn't work at the second step.
>
> my equation is as following,
>
> f[c_?NumberQ]:=y[x]/.NDSolve[{eqn,y[0]==1,y'[0]==0},y,{x,0,c},MaxSteps-
>
> >10000][[1]]
>
> n[w_NumberQ,c_NumberQ]:=NIntegrate[c*y[x]*(r-w)],{r,w,1}]
>
> function f works well, however there's some problem in funcion n,
>
> and it's confused me for a long time...,
>
> thanks for your help!!
>
> Best Regards!!
> Lynn