Pi just got a little bit bigger

Message boards : Number crunching : Pi just got a little bit bigger
Message board moderation

To post messages, you must log in.

1 · 2 · Next

AuthorMessage
W-K 666 Project Donor
Volunteer tester

Send message
Joined: 18 May 99
Posts: 19048
Credit: 40,757,560
RAC: 67
United Kingdom
Message 961172 - Posted: 6 Jan 2010, 10:00:32 UTC

According to a BBC news report, Pi has now been calculated to 2.7 trillion digits, 123 billion digits larger that last record.

http://news.bbc.co.uk/1/hi/technology/8442255.stm
ID: 961172 · Report as offensive
Profile HAL9000
Volunteer tester
Avatar

Send message
Joined: 11 Sep 99
Posts: 6534
Credit: 196,805,888
RAC: 57
United States
Message 961179 - Posted: 6 Jan 2010, 11:36:50 UTC

That's a lot of pi.

Myself, I like pumpkin pie.
SETI@home classic workunits: 93,865 CPU time: 863,447 hours
Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[
ID: 961179 · Report as offensive
Profile Reuben Gathright
Avatar

Send message
Joined: 8 Mar 01
Posts: 213
Credit: 14,594,579
RAC: 0
United States
Message 961197 - Posted: 6 Jan 2010, 14:00:04 UTC

ID: 961197 · Report as offensive
Profile Frosted
Avatar

Send message
Joined: 11 Jul 99
Posts: 83
Credit: 3,898,641
RAC: 0
Canada
Message 961202 - Posted: 6 Jan 2010, 14:21:08 UTC - in response to Message 961197.  

Reuben Gathright wrote:
Wait... I thought they solved Pi a few years ago.

There's a solution?
ID: 961202 · Report as offensive
Wembley
Volunteer tester
Avatar

Send message
Joined: 16 Sep 09
Posts: 429
Credit: 1,844,293
RAC: 0
United States
Message 961218 - Posted: 6 Jan 2010, 15:29:23 UTC

The only remaining question about pi is whether to cut it into 6 pieces or 8 pieces.
ID: 961218 · Report as offensive
Profile zoom3+1=4
Volunteer tester
Avatar

Send message
Joined: 30 Nov 03
Posts: 65736
Credit: 55,293,173
RAC: 49
United States
Message 961237 - Posted: 6 Jan 2010, 17:20:50 UTC - in response to Message 961179.  

That's a lot of pi.

Myself, I like pumpkin pie.

I like pumpkin too, But Apple is My favorite, My nephew likes Cherry a lot, Me I like Cherry also, But not as much as Apple. :D

And yeah that's a BIG Pi. :)
The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's
ID: 961237 · Report as offensive
Bert

Send message
Joined: 12 Oct 06
Posts: 84
Credit: 813,295
RAC: 0
United States
Message 961257 - Posted: 6 Jan 2010, 18:52:33 UTC - in response to Message 961197.  

Pi is an irrational number. It cannot be resolved, it is endless and non-repeating. Other irrational numbers are, for example, sqrt(2), e, the square root of any prime number. Irrational means it cannot be expressed as a ratio of two numbers.
ID: 961257 · Report as offensive
Profile Bill Walker
Avatar

Send message
Joined: 4 Sep 99
Posts: 3868
Credit: 2,697,267
RAC: 0
Canada
Message 961269 - Posted: 6 Jan 2010, 19:18:15 UTC

I think the ancient Greeks "solved" pi many moons ago. It is exactly the ratio of the circumference of a perfect circle to its diameter. Problems start when we try to express that "exact solution" as a numerical value.

ID: 961269 · Report as offensive
Profile Jet
Avatar

Send message
Joined: 8 May 99
Posts: 11
Credit: 6,357,134
RAC: 69
United States
Message 961275 - Posted: 6 Jan 2010, 19:44:23 UTC - in response to Message 961257.  
Last modified: 6 Jan 2010, 19:44:56 UTC

Pi is an irrational number. It cannot be resolved, it is endless and non-repeating. Other irrational numbers are, for example, sqrt(2), e, the square root of any prime number. Irrational means it cannot be expressed as a ratio of two numbers.


No...Pi is fine. It is the people that are irrational
ID: 961275 · Report as offensive
Luke
Volunteer developer
Avatar

Send message
Joined: 31 Dec 06
Posts: 2546
Credit: 817,560
RAC: 0
New Zealand
Message 961276 - Posted: 6 Jan 2010, 19:45:19 UTC
Last modified: 6 Jan 2010, 19:45:54 UTC

Hmmm... I wonder if the (calculated) length of Pi obeys Moore's law?

EDIT: And by the way, I can't stand pumpkins... ;)
- Luke.
ID: 961276 · Report as offensive
1mp0£173
Volunteer tester

Send message
Joined: 3 Apr 99
Posts: 8423
Credit: 356,897
RAC: 0
United States
Message 961278 - Posted: 6 Jan 2010, 20:00:43 UTC

Seems to me that the size of Pi is unchanged, and so is the number of digits that have yet to be calculated.
ID: 961278 · Report as offensive
Profile zoom3+1=4
Volunteer tester
Avatar

Send message
Joined: 30 Nov 03
Posts: 65736
Credit: 55,293,173
RAC: 49
United States
Message 961286 - Posted: 6 Jan 2010, 20:21:09 UTC - in response to Message 961276.  

Hmmm... I wonder if the (calculated) length of Pi obeys Moore's law?

EDIT: And by the way, I can't stand pumpkins... ;)

Some here can't either, Some build air cannons, catapults and such just to see who can lob one the farthest, All just to see a pumpkin go splat!
The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's
ID: 961286 · Report as offensive
Profile Bill Walker
Avatar

Send message
Joined: 4 Sep 99
Posts: 3868
Credit: 2,697,267
RAC: 0
Canada
Message 961378 - Posted: 7 Jan 2010, 0:46:47 UTC - in response to Message 961278.  

Seems to me that the size of Pi is unchanged, and so is the number of digits that have yet to be calculated.


Very true Ned. Should we be funding this research based on how much they decreased the number of remaining digits in the last budget cycle?

ID: 961378 · Report as offensive
1mp0£173
Volunteer tester

Send message
Joined: 3 Apr 99
Posts: 8423
Credit: 356,897
RAC: 0
United States
Message 961439 - Posted: 7 Jan 2010, 4:55:47 UTC - in response to Message 961378.  

Very true Ned. Should we be funding this research based on how much they decreased the number of remaining digits in the last budget cycle?

Makes sense to me.

ID: 961439 · Report as offensive
Profile Lint trap

Send message
Joined: 30 May 03
Posts: 871
Credit: 28,092,319
RAC: 0
United States
Message 961604 - Posted: 7 Jan 2010, 19:03:47 UTC




ISTR there's a sci-fi story that is based on finding a long string of repeating 0's (zeroes) in Pi.

Does anyone know the name of it?

Martin
ID: 961604 · Report as offensive
1mp0£173
Volunteer tester

Send message
Joined: 3 Apr 99
Posts: 8423
Credit: 356,897
RAC: 0
United States
Message 961624 - Posted: 7 Jan 2010, 20:12:25 UTC - in response to Message 961604.  

ISTR there's a sci-fi story that is based on finding a long string of repeating 0's (zeroes) in Pi.

Not sure why it'd be a sci-fi. If there are an infinite number of digits, and the probability of any digit is 1 in 10, then the law of large numbers says that there will be an infinitely long string of zeros somewhere in an infinitely long number.

ID: 961624 · Report as offensive
Profile Bill Walker
Avatar

Send message
Joined: 4 Sep 99
Posts: 3868
Credit: 2,697,267
RAC: 0
Canada
Message 961625 - Posted: 7 Jan 2010, 20:21:01 UTC - in response to Message 961624.  

ISTR there's a sci-fi story that is based on finding a long string of repeating 0's (zeroes) in Pi.

Not sure why it'd be a sci-fi. If there are an infinite number of digits, and the probability of any digit is 1 in 10, then the law of large numbers says that there will be an infinitely long string of zeros somewhere in an infinitely long number.


Of course, that infinitely long string of zeros would only be an infinitesimal portion of the whole string of digits making up pi.

Thinking like this makes my brain hurt.

ID: 961625 · Report as offensive
Profile zoom3+1=4
Volunteer tester
Avatar

Send message
Joined: 30 Nov 03
Posts: 65736
Credit: 55,293,173
RAC: 49
United States
Message 961631 - Posted: 7 Jan 2010, 20:34:11 UTC - in response to Message 961625.  

ISTR there's a sci-fi story that is based on finding a long string of repeating 0's (zeroes) in Pi.

Not sure why it'd be a sci-fi. If there are an infinite number of digits, and the probability of any digit is 1 in 10, then the law of large numbers says that there will be an infinitely long string of zeros somewhere in an infinitely long number.


Of course, that infinitely long string of zeros would only be an infinitesimal portion of the whole string of digits making up pi.

Thinking like this makes my brain hurt.

Are Ya sure Yer not a Voomer? ;)

(VOodoo Organic Metal Extension Resource), robots manufactured by the Genom Corporation, Which can become a Boomer(very bad). :D
The T1 Trust, PRR T1 Class 4-4-4-4 #5550, 1 of America's First HST's
ID: 961631 · Report as offensive
1mp0£173
Volunteer tester

Send message
Joined: 3 Apr 99
Posts: 8423
Credit: 356,897
RAC: 0
United States
Message 961637 - Posted: 7 Jan 2010, 20:55:47 UTC - in response to Message 961625.  

ISTR there's a sci-fi story that is based on finding a long string of repeating 0's (zeroes) in Pi.

Not sure why it'd be a sci-fi. If there are an infinite number of digits, and the probability of any digit is 1 in 10, then the law of large numbers says that there will be an infinitely long string of zeros somewhere in an infinitely long number.


Of course, that infinitely long string of zeros would only be an infinitesimal portion of the whole string of digits making up pi.

Thinking like this makes my brain hurt.

Absolutely, along with an infinite number of other strings, like 01234567890123....
ID: 961637 · Report as offensive
Profile Lint trap

Send message
Joined: 30 May 03
Posts: 871
Credit: 28,092,319
RAC: 0
United States
Message 961643 - Posted: 7 Jan 2010, 21:08:30 UTC

If there are...


Exactly.

No one knows if pi is or isn't infinite and that's the (fun) and crux of the problem.

It's still sci-fi because, so far, no one has detected any continuously repeating strings. If/when any are found, Pi will cease to be considered an irrational number.

Martin
ID: 961643 · Report as offensive
1 · 2 · Next

Message boards : Number crunching : Pi just got a little bit bigger


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.