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#1 2013-02-07 15:57:07
- Leroy
- Guest
Nth digit of pi
I've heard that there is a function that gives nth digit of pi,is it true?if it is i'd like to know more about it.
#2 2013-02-07 19:54:51
- bobbym
- Administrator
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Re: Nth digit of pi
Hi;
Yes, it is called a spigot algorithm. It can zero in on the nth digit without having to get all the preceding ones
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#4 2013-02-07 23:52:26
- bobbym
- Administrator
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Re: Nth digit of pi
Hi;
Here is an example of a spigot algorithm being used to get the 50 th digit from ln(2). Process is the same for pi.
http://www.mathisfunforum.com/viewtopic … 19#p229919
To see how pi is done check out the BBP formula right here.
http://en.wikipedia.org/wiki/Bailey-Bor … fe_formula
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#6 2013-02-08 02:13:04
- bobbym
- Administrator
Offline
Re: Nth digit of pi
Hi;
Your welcome.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#7 2013-02-08 03:11:28
- anonimnystefy
- Real Member
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Re: Nth digit of pi
Hi bobbym
Is there a way of getting the nth decimal digit of pi by a spigot algorithm?
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#8 2013-02-08 10:52:51
- bobbym
- Administrator
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Re: Nth digit of pi
Hi;
None that I know of, the BBP is for hexadecimal digits.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.