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Re: Integrate Problems

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22474] Re: Integrate Problems
  • From: "N. Shamsundar" <shamsundar at uh.edu>
  • Date: Sat, 4 Mar 2000 02:26:40 -0500 (EST)
  • Organization: MECE-4792, University of Houston
  • References: <897et8$5un@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

The indefinite integral is (1/2)erf((x-a)/b\sqrt 2))

N. Shamsundar
University of Houston

com3 at ix.netcom*NOSPAM*.com wrote:
> 
> Can someone provide some help with the following results I get from
> version 3 ?
> 
> a=40000
> b=4000
> f[x_]:=(1/(b*(2*Pi)^.5))*Exp[(-1/2)*((x-a)/b)^2]
> 
><SNIP> ...
> 
> I need to obtain numerical values from these and similar calculations
> and suspect that some options need to be changed. Symbolic solutions
> would be preferred if possible. Are there guidelines that can help
> define what options for Integrate/NIntegrate work best ?
> 
> Please forgive any minor typos as my newsreader forces me to manually
> clean-up copied and pasted Mathematica commands.
> 
> Also any help in interpreting the associated Underflow and
> PolynomialGCD messages would be appreciated.
> 
> Thanks
> 
> Steve
> 
> For any e-mail responses, please remove *NOSPAM* from my address.


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