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Math Help - chebychev's theorem

  1. #1
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    Talking chebychev's theorem

    i need to use chebychevs theorem to approximate the number of primes in between two numbers and then calculate how many there actually are
    (large numbers, say 5-6 digit)

    i understand pi(x)=x/lnx is a good approximation, and that i would use the difference, of the two for how many are in between
    i guess i am having trouble with the "theta" part of the expression.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by steiner View Post
    i need to use chebychevs theorem to approximate the number of primes in between two numbers and then calculate how many there actually are
    (large numbers, say 5-6 digit)

    i understand pi(x)=x/lnx is a good approximation, and that i would use the difference, of the two for how many are in between
    i guess i am having trouble with the "theta" part of the expression.
    What is theta, is this big Theta notation?

    CB
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  3. #3
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    yes, big theta notation
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