JXS118@psuvm.psu.edu (Jeff Siegel) (12/06/90)
Most e-mail replies I received about my question on algorithm sources
suggested a book by Cody & Waite. Naturally, since this is the book
I need, Penn State doesn't have it. I did find a good algorithm to
compute the natural log however. It goes like this:
Write x as: (2 raised to the k) times q
where k is rigged to make q fall between 1 and 2
Uses the taylor series expansion about 1.5 to compute the ln(q)
Converges very quicky.
Store the log of 2 as a constant, the ln(2 raised to k) = k * ln(2)
The answer is then k*ln(2) + ln(q) for the ln(x)
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Can anyone give me a good algorithm to generate pi?
If possible, I would like one that generates a digit at a time.
Jeff