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MathGroup Archive 2000

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RE: Numerical Integration

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22368] RE: [mg22323] Numerical Integration
  • From: Chiam Sim Ai <engp8949 at nus.edu.sg>
  • Date: Sat, 26 Feb 2000 22:04:55 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello,

Realised that the two commands copied from Mathematica do not appear in the
actual form in my previous message.  Sorry for using the wrong text form.
What I meant were as flow:

1.  NIntegrate[f(x),{x,0,n}]

2.  N[Integrate[f(x),{x,0,n}]]

Cheers.

Sim Chiam
 

-----Original Message-----
From: Chiam Sim Ai [mailto:engp8949 at nus.edu.sg]
To: mathgroup at smc.vnet.net
Subject: [mg22368] [mg22323] Numerical Integration


Dear all,

I would like to find out the difference between the following two commands
on Mathematica:

1.   <<...OLE_Obj...>> 

2.   <<...OLE_Obj...>> 

Is there anything wrong in writing in the 2nd way?  Can anyone tell me the
difference between the algorithm used by Mathematica (Versions 3 & 4) in
performing the above two operations?

For a same problem, both commands give the same numerical answer but the 2nd
has an error message.  Can anyone tell me why?



Best regards,
Sim A. Chiam
National University of Singapore




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