1. ## News - Two quadrillionth digit of Pi calculated

Yahoo researcher spends 23 days with 1,000 computers - and the number is...

2. ## Re: News - Two quadrillionth digit of Pi calculated

I don't believe them. Ask them to prove it.

3. ## Re: News - Two quadrillionth digit of Pi calculated

Wow that's pretty impressive. I'm surprised no-one has bothered to break the record on a large cluster, at least for some time.
The previous record is 5 trillion BTW, calculated on a single workstation: http://www.xtremesystems.org/forums/...d.php?t=221773

Edit: Oh after reading it properly, they haven't actually calculated two quadrillion digits, so the previous record still stands. I was pretty surprised by the huge number at first.

4. ## Re: News - Two quadrillionth digit of Pi calculated

I predict the 3 quadillionth number to be....7.

I challenge anyone to prove me wrong

5. ## Re: News - Two quadrillionth digit of Pi calculated

I'm going to go out on a limb and say that the seventeen-quadrillionth digit of Pi is a 3.

10% chance of getting it right until someone proves me wrong

[e!] - Argh didn't see BullDogg's post with the exact same theme. balls.

6. ## Re: News - Two quadrillionth digit of Pi calculated

Originally Posted by Hexus
For those who are interested, the two-quadrillionth digit of Pi is 0.
Originally Posted by BBC
Nicholas Sze, of technology firm Yahoo, determined that the digit - when expressed in binary - is 0.
When expressed as binary? So it's either a 0 or a 1.

BullDogg (17-09-2010),Terbinator (17-09-2010)

8. ## Re: News - Two quadrillionth digit of Pi calculated

Originally Posted by borandi
When expressed as binary? So it's either a 0 or a 1.
If that's the case, which it is, because I believe the BBC, it took 1000 computers 23 days to come up with a number that I had a 50% chance of correctly guessing?

Mathematics...practical as ever.

CAT-THE-FIFTH (17-09-2010)

10. ## Re: News - Two quadrillionth digit of Pi calculated

It was a 50/50 chance. I would have guessed 1. Guess I was wrong.

11. ## Re: News - Two quadrillionth digit of Pi calculated

So it's only the two hundred and fifty trillionth denary digit? Wouldn't a whole digit have been more useful?

12. ## Re: News - Two quadrillionth digit of Pi calculated

Hope they did a memtest first.

13. ## Re: News - Two quadrillionth digit of Pi calculated

Haha, there are ways of verifying a pi calculation but I'm not sure about doing it only to a small portion of numbers like this.

14. ## Re: News - Two quadrillionth digit of Pi calculated

I was thinking that map-reduce seemed like an odd way of doing it. Must be some quite clever maths. Still, what a waste of CPU power. If I had 1000 computers for 23 days, I'd do something much more useful.

15. ## Re: News - Two quadrillionth digit of Pi calculated

Like play Crysis.

16. ## Re: News - Two quadrillionth digit of Pi calculated

Fold, and overtake Lowe .

Tattysnuc (19-09-2010)

18. ## Re: News - Two quadrillionth digit of Pi calculated

Originally Posted by Fraz
If I had 1000 computers for 23 days, I'd do something much more useful.
Boinc with Rosetta@home!!

19. ## Re: News - Two quadrillionth digit of Pi calculated

The amount of points you could rack in on folding@home with that amount of processing power...