Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2010-04-26 05:54:55

DaveRobinsonUK
Member
Registered: 2010-04-24
Posts: 123

Graham's Number

Has anybody any ideas on how to find out the digits?


Can feel it coming together.. Slowly but Surely smile

Offline

#2 2010-04-26 09:05:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 92,914

Re: Graham's Number

Hi David;

Ramsey theory and numbers are the toughest. To give you an idea of what you are asking I spent a long time trying to get just the front digit of the power tower:

9^(9^(9^9))

And that tower is immeasurably tiny next to Grahams number.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

#3 2010-04-27 01:49:06

DaveRobinsonUK
Member
Registered: 2010-04-24
Posts: 123

Re: Graham's Number

Hi Bobby

Wow, I thought it would be very complicated. I watched a documentary a while ago on Infinity and Ronald Graham came on discussing how he decided one day to stop being a Circus artist and become a Mathematician and he explained how he came up with them number.

Are the carrats in your 9^(9^(9^9) Knuth notation?


Can feel it coming together.. Slowly but Surely smile

Offline

#4 2010-04-27 01:50:15

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 92,914

Re: Graham's Number

Hi Dave;

No, that represents regular exponentiation:

I didn't see that documentary.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Online

Board footer

Powered by FluxBB