Re: Integral problem
- To: mathgroup at smc.vnet.net
- Subject: [mg58318] Re: [mg58309] Integral problem
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Tue, 28 Jun 2005 05:13:18 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
expr=Rationalize[
0.5*(1+10^7*((1-x-y)/1.5+x/8)^10)+
0.004*x/((1-x-y)/1.5+x/8)^10];
Integrate[expr,{x,425/10000,1999/10000},
{y,8425/10000-x,8/10}]//N
1.9153852813471046*^8
Bob Hanlon
>
> From: HUAFANG CUI <huafangc at seas.upenn.edu>
To: mathgroup at smc.vnet.net
> Date: 2005/06/26 Sun PM 11:13:11 EDT
> Subject: [mg58318] [mg58309] Integral problem
>
> Hi,
>
> I have a question about integral. I could not figure out what is wrong.
>
> function is
> 0.5 * (1 + 10^7 * ((1-x-y)/1.5 + x/8)^10) + 0.004 * x / ((1-x-y)/1.5 +
> x/8)^10)
>
> limit on y is
> 0.8425 - x, 0.8
>
> limit on x is
> 0.0425, 0.1999
>
> I run it on Ver4.0. It runs forever and does not stop.
>
> Thank you.
>
> HC
>
>