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General feature of Newton Integral

  1. May 16, 2006 #1

    I need a help with responding one question from my calculus classes...

    Lef f: [0, + infin.) ---> R be a continuous function and let exist the finite Newton integral of f(x) dx from 0 to +infinity. It´s neccesary that f is bounded?

    Thanks for any help. :wink:
  2. jcsd
  3. May 16, 2006 #2


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    I'm not sure what you mean by "the finite Newton integral". Do you mean to assert that the Riemann integral is finite?
  4. May 18, 2006 #3
    By Newton Integral I mean the integral of f(x) dx from a to b defined as follows, let F be a primtive function to f then the discussed integral is equal to F(b) - F(a) or [lim (x --> b-) F(x) - lim (x --> a+) F(x)] and the Riemanns definition of integral is based on the areas in the graph. So the task demands to proof it only from the Newton's definition.
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