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How do I determine if a function is analytic at x=a?

  1. Oct 15, 2012 #1
    1. The problem statement, all variables and given/known data
    I'm studying diff eq and I'm not sure how to show that a function is analytic at point x=a. I know that the definition says that a function p(x) is analytic if it has a Taylor series expansion at x=a, but not sure how to show it.

    Thank you for the help!

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 15, 2012 #2

    micromass

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    Do you have a particular function you need to check?
     
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