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One wants to approximate the real value of $\sqrt[3]{x}$ when $x$ is rational number. One want to approximate to two decimal digits.

Is there any way to do this quickly?

  • 2
    Did you study Taylor polynomial? http://en.wikipedia.org/wiki/Taylor_series#Approximation_and_convergence2012-10-14
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    Got it. thanks.2012-10-14
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    Another way is to use Newton's method.2012-10-14
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    Another way is to use a calculator.2012-10-14
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    Another way is to compute the continued fraction.2012-10-14

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