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Math Help - Finite Precision?

  1. #1
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    Finite Precision?

    I have two functions that are totally equivalent sqrt(1+t^3)-1 and t^3/(sqrt(1+t^3)+1)... so which is more precise when t=10^-^6?

    Now I believe that the second one is more accurate and if u plug it into a calculator it has more decimal values in its approximation. But why is it more precise?
    Last edited by ductiletoaster; October 20th 2010 at 03:52 PM.
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  2. #2
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    Any Ideas?
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