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Need help with erf function please

  1. Apr 3, 2009 #1
    I have this question that I have been stuck on for quite sometime. If someone could assist me in solving it then that would be great. Can someone please shed some light?

    I have attached the question in a document.

    Thankyou
     

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  2. jcsd
  3. Apr 4, 2009 #2

    Tom Mattson

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    What have you tried to do on this problem?
     
  4. Apr 4, 2009 #3

    jambaugh

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    To get started insert the integral definition of the error function into the integral you are doing. View this as a double integral over an area in u,x space. Then look at different ways to evaluate this double integral.
     
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