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approximate functions in polynomial

• To: mathgroup at smc.vnet.net
• Subject: [mg53884] approximate functions in polynomial
• From: "Tun Myint Aung" <TMA at nus.edu.sg>
• Date: Tue, 1 Feb 2005 04:08:51 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Dear All,

How can we approximate the following functions by polynomials ?

f(a,b,c,d) = 1 / [ (a - b)^2 + (c - d)^2]

I have tried to use Series in Mathematica but the result is complicated
and not close at all to the exact value if maximum power is 3.

Thank you very much


With Regards,
Tun Myint Aung (Graduate Student)
Civil Engineering Department
National University of Singapore
E1A 02-18
E-mail: g0202015 at nus.edu.sg (or) tma at nus.edu.sg