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Børge
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 12:25 pm 
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udosuk wrote:
What is the earliest position for "0123456789", for example? :geek:
From the 26,852,899,245th decimal place!
ftp://pi.super-computing.org/README.our ... ecord_206b

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udosuk
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 12:40 pm 
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Thanks Børge! :thumbs:

But that was for "01234567891". I suspect the number could be smaller if we allow the 11th digit to be 2..9 instead of 0/1. :?:

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Børge
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 12:46 pm 
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udosuk wrote:
But that was for "01234567891". I suspect the number could be smaller if we allow the 11th digit to be 2..9 instead of 0/1. :?:
Why not just write your own computer program for calculating the decimals of Pi and searching for whatever subsequences you want to know when occur?
HERE are links to algorithms

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Glyn
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 1:02 pm 
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The source I used was The Pi Search Page only goes to 200 million places so I had to cheat a bit. Useful for shorter strings though.

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udosuk
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 2:09 pm 
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Glyn, thanks heaps for the link. I found out that 876543210 appears at position 2747956 (quite a small number), which should be quite attractive for a Sudoku using the digits 0..8. :ugeek:

Børge, don't think I have enough brain/computer power/time to program that myself. Guess I'll have to let it settle as a mystery. :whistle: Thanks for the link though. ;)

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enxio27
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 3:14 pm 
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Ayi-yi! My eyes are officially glazing over!! When I was in school, we had to manually calculate the first 8 or so places after the decimal. That was enough for me!!
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Glyn
 Post subject: Re: Pi Day puzzle
PostPosted: Sun Jun 08, 2008 3:35 pm 
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If you can remember sufficient digits of Pi, the next task to set yourself is "Can I remember the reciprocal"

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HATMAN
 Post subject: Re: Pi Day puzzle
PostPosted: Tue Jun 10, 2008 9:34 pm 
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Para your idea on Killers is good, particularly on Repeats - I may go back to 007s.

Matt - what is the alphabetic scribble at the bottom of your posts?
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udosuk
 Post subject: Re: Pi Day puzzle
PostPosted: Wed Jun 11, 2008 3:51 am 
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HATMAN wrote:
Matt - what is the alphabetic scribble at the bottom of your posts?

Glad you ask. ;) It's related to a very nice brainteaser. Check elsewhere in the forum. :ugeek:

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