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# PI to numerous decimal places!

trib4lmaniac
03-14-2004, 01:46 AM
My dad has set me the challenge! The challenge to remember PI. I get 50p for every number I recite after 3.14 so far im up to 26 places (from memory - 3.14159265358979323846264338 - inform me if thats not correct) which is £12. Not bad, but I want more. So ways to remember large strings of numbers are much needed.

P.S. Sites that just list PI to 1.24 trillion places are not wanted. I need ways to remember PI - not PI itself!

P.P.S. If anyone has memorized PI to more than 26 places, I'd like to know how you did it.

P.P.P.S Mnemonics do NOT work for me.

whackaxe
03-14-2004, 01:59 PM
i once saw this guy on spanish tv who had to remember 100 numbers in one day. what he did was he seperated them into 20 groups of 5. try it on :)

trib4lmaniac
03-14-2004, 02:32 PM
At the moment I have them grouped up, but not by 5's. Kinda wateva feels right like 14159-26-535-8-979 etc...

raf
03-14-2004, 11:38 PM
The human mind is trained in remembering meaningful info and filtering out the info that is supposed to be insignificant.
Numerical info is almost always insignificant. Situations and geograpical or morphic info is far more usefull and better remembered.

The easiest way to remember useless info is integrating it into something meaningfull.
For instance, if you have a more pictural/situational memory, then you could transfor the numbers into features of an imagenary home or so.
With one entrance door that brings you into a room with four walls and one table in the middle. Five chairs around the table etc etc.
For me it would be easier to visualise and remember 3 room with each 10features, then to remember 230 digits. But maybe your better at remembering other data ...

trib4lmaniac
03-15-2004, 12:40 AM
Originally posted by raf
The easiest way to remember useless info is integrating it into something meaningfull.
For instance, if you have a more pictural/situational memory, then you could transfor the numbers into features of an imagenary home or so.
With one entrance door that brings you into a room with four walls and one table in the middle. Five chairs around the table etc etc.
For me it would be easier to visualise and remember 3 room with each 10features, then to remember 230 digits.
Not on your nellie. I've had that application to room items suggested to me loads of times.

I think the grouping the numbers is paying off now, after a slow start i managed to recite PI to 55 decimal places this evening (thats £26.50!)

raf
03-15-2004, 02:00 AM
Originally posted by trib4lmaniac
Not on your nellie. I've had that application to room items suggested to me loads of times.
Then it obviously isn't worth a try :rolleyes:

jkd
03-15-2004, 04:44 AM
Last year my roommate memorized it out to over 2000 places. He memorized it in blocks of 60 digits I believe. That is the tough way of doing it. Also last year, at our school's Pi day festivities (March 14th, 3/14), someone who had memorized it to over 4000 places came and lectured on memorization techniques. He had done it by creating a book, each page chock full of pneumonic devices, and then just mentally remembered the pages of the book. Was fascinating, but he messed up on digit 1636 or something while my roommate blazed on to past 2000. :)

mindlessLemming
03-15-2004, 12:24 PM
Originally posted by jkd
Last year my roommate memorized it out to over 2000 places.
Good Lord! :eek:
I have enough trouble remembering which bus to catch :o

mordred
03-15-2004, 02:14 PM
Why... PI? I mean, if one wants to impress by memorization skills, why not memorize something useful? Like the telephone book, bus/train schedule, some RFCs, Unicode letters... something you might actually have a use for.

Says mordred, who doesn't remember his own phone number when he needs it.

jkd
03-15-2004, 03:03 PM
Originally posted by mordred
Why... PI? I mean, if one wants to impress by memorization skills, why not memorize something useful? Like the telephone book, bus/train schedule, some RFCs, Unicode letters... something you might actually have a use for.

Says mordred, who doesn't remember his own phone number when he needs it.

He got his name published somewhere as a record. :D

But really, memorizing pi only serves as an example of the power of human memorization techniques. Indeed, it is pretty useless. But going back to the other guy I mentioned, the lecturer, he also memorized a dictionary. Give him any page number of it, and he could tell you the first and last words on that page in about a second. He emphasized non-sequential memorizing techniques, while my roommate trudged along sequentially. What that means is my roommate could only tell you the 2000th digit after pi after reciting the first 1999, while this guy asked people to give him random numbers between 0 and like, 4000 and he'd tell you the 10 digits starting at that point.

liorean
03-15-2004, 03:43 PM
When I memorised to 100 decimals back in my lost youth, I memorised it as a series of prime divisions. I've always had an affinity to prime numbers...

Mhtml
03-15-2004, 04:39 PM
My record is 62, which is 18 less than the number of elements I can remember ;) .. There is a person at my school who can remember 113! As far as I know he just does it by reciting groups over and over again and then just writes out each group. He has pages of digits and he plans to get them all, I think he needs a life :p.

I can't hardly remember more than 10 digits now, I got bored with it. I used to write them on paper in exams when I had a mental block and it usually freed up! :)

whackaxe
03-15-2004, 04:55 PM
makes me wonder why the computer was invented, this thread... :D

A1ien51
03-15-2004, 05:56 PM
I knew PI up over 80 places, got bored in Math class.

All I did was keep reapeating the number until it I remembered it, then I added another number.

After playing with that I realized I did better by doing it in chunks that had patterns.

Another friend of mine used his TI calc and basically memorized the numbes that filled one line on the screen.

Eric

trib4lmaniac
03-15-2004, 06:13 PM
Currently at 55 places! Doing well considering i only started this the day before yesterday.

Mhtml
03-15-2004, 06:50 PM
I'm much better at say walking into a room and memorizing all the objects in X time... :) ... Association is the best method I've found for memorizing things .. like notes. I use to sit on the bus and just memorize everything that whent past the window and then play them in various orders in my head.

trib4lmaniac
03-15-2004, 08:03 PM
Originally posted by Mhtml
I use to sit on the bus and just memorize everything that whent past the window and then play them in various orders in my head.

Fun! Lol!

trib4lmaniac
03-15-2004, 10:12 PM
Occording to IE this fraction i made is as accurate as Math.PI...

628318530717958678/200000000000000000

Useless I know but beats 355/113!

jmsloderbeck
03-10-2005, 04:57 AM
Who has gotten the farthest on memorizing pi? I've gotten to 100 numbers on my second day.

wabirdman
03-10-2005, 05:09 AM
I remembered it to 10 decimal places because thats all my calculator could show.

I think you should stop now because it seems like a waste of time for such a small reward :)

Well if its taken you 2 days to remember 55 places (\$26.50) then that is \$13.25 per day. Lets work on a an average working day (8 hours), so you are getting \$1.65625 an hour -- THATS SLAVE LABOUR :p

Just my 2 cents :D