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A problem

  1. Apr 2, 2003 #1
    how are you all
    can you help me in finding the anti derivative of the function
  2. jcsd
  3. Apr 2, 2003 #2
    As-salaam alaikum!

    There's no closed-form solution for that integral, unfortunately.
  4. Apr 3, 2003 #3
    Although no elementary functions can be found, a closed expression is

    [inte]x/Ln(x)dx= -Ei(1,2Ln(x)),

    so that you can approximate the values of the function.

    P.S: It is not infortunate (for me) that there is no primitive, since the Ei function is an essential ingredient of the theory and has led to marvellous new insights.
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