According to this link at Wolfram, the following formula can be used to calculate any digit of the base-16 representation of π:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]

\pi = \sum_{n=0}^{\infty} \

\left(

\frac{4}{8n+1} - \frac{2}{8n+4} - \frac{1}{8n+5} - \frac{1}{8n+6}

\right)

\cdot \frac{1}{16^n}

[/tex]

But apparently it is not as straightforward as simply taking the n^{th}term in the series to get the n^{th}digit. For example, the 0^{th}term is 3.1333..., and not simply 3 as it must be.

So my question is, just how does one use this formula to calculate a digit? Or am I missing something in my above reasoning?

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# Digits of pi, base 16

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