Re: NIntegrate a list
- To: mathgroup at smc.vnet.net
- Subject: [mg52969] Re: [mg52940] NIntegrate a list
- From: Sseziwa Mukasa <mukasa at jeol.com>
- Date: Sat, 18 Dec 2004 03:59:43 -0500 (EST)
- References: <200412171019.FAA16101@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On Dec 17, 2004, at 5:19 AM, Aaron Fude wrote:
> Hi,
>
> I can Integrate this, but apparently not NIntegrate this:
>
> Integrate[x*Sin[x]*{1, 2}, {theta, -Pi, Pi}]
>
> but not
>
> NIntegrate[x*Sin[x]*{1, 2}, {theta, -Pi, Pi}]
>
> Is there a good way to do this (w/o writing loops)?
>
> Many thanks!
It's not clear what you are trying to do. The first expression is
equivalent to
x Sin[x] {1,2} Integrate[1,{theta,-Pi,Pi}]
is that really what you meant? Or did you mean Integrate[theta
Sin[theta] {1,2},{theta,-Pi,Pi}]?
Anyway x Sin[x] is not a numeric expression and NIntegrate works only
on numeric expressions.
Regards,
Ssezi
- References:
- NIntegrate a list
- From: "Aaron Fude" <aaronfude@yahoo.com>
- NIntegrate a list