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Integral Interpretation

  1. Jan 23, 2010 #1
    1. The problem statement, all variables and given/known data

    I recently came across a simple type of integral that I did not know how to evaluate. Generally speaking how would one interpet [tex]\int_0^a dxf(x)[/tex]?

    2. Relevant equations

    3. The attempt at a solution
    At a glance, I thought to integrate with respect to 1, but then noticed the f(x) touching the differential. I have never seen this before.
  2. jcsd
  3. Jan 23, 2010 #2


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    That's just a different way of writing

    [tex]\int_0^a f(x)dx[/tex]
  4. Jan 23, 2010 #3
    I feel like an idiot. Thank you very much.
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