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LiberalArkie

(15,734 posts)
Sun Mar 15, 2015, 02:10 PM Mar 2015

How to Memorize Pi if You’re a Word Person

http://mentalfloss.com/article/62218/how-memorize-pi-if-youre-word-person


Pi Day is always on March 14 (3/14), but this year it’s extra special because we get two more digits because of the year (3/14/15). The day offers something for the math-lover, of course, but also for the baked-goods lover (Bake a pi pie!), the music lover (Sing some Pi Day carols!), and the parade lover (March in a pi-rade!) What about the word lover?

Pi enthusiasts have performed amazing feats of memorization, reciting the number to thousands of digits. World record holder Chao Lu has recited it to 67,890 digits without an error. But memorizing pi doesn’t have to be done through numbers—it can also be done through words. This sentence "How I wish I could calculate pi" gives you pi to seven places. Just count the number of letters in each word—3, 1, 4, 1, 5…—and you get 3.141592.

Here are some other pi sentences from the Pi Wordplay page at Wolfram Mathworld.

May I have a large container of coffee? (3.1415926)

How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics. (3.14159265358979)

Snip
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How to Memorize Pi if You’re a Word Person (Original Post) LiberalArkie Mar 2015 OP
Pi is 3.14. Brigid Mar 2015 #1
Memorizing a phrase that SheilaT Mar 2015 #2
355/113 is an amazingly accurate approximation to pi. Nye Bevan Mar 2015 #3
The nuns in the 40's used 22/7 in my 6th grade class. CK_John Mar 2015 #6
That is what I use for quick calcs. n/t PowerToThePeople Mar 2015 #7
I learned this as a kid ... Drifter Mar 2015 #4
When I was just a wee kid, Mom used to carve the Greek letter Pi into the top crust.... Hekate Mar 2015 #5
Just memorize the Chudnovsky algorithm Bosonic Mar 2015 #8
No one knows past 3.1415926, so you really could just start pulling numbers outta your ass NightWatcher Mar 2015 #9
 

SheilaT

(23,156 posts)
2. Memorizing a phrase that
Sun Mar 15, 2015, 03:23 PM
Mar 2015

then requires you go back and count the number of letters in each word strikes me as a great deal more unwieldy than a straightforward memorization.

But then, my younger son memorized Pi to at least 125 digits, and once got a standing ovation for reciting them at a school talent show.

Nye Bevan

(25,406 posts)
3. 355/113 is an amazingly accurate approximation to pi.
Sun Mar 15, 2015, 03:49 PM
Mar 2015

Easy to remember, too. Just take the odd numbers 1, 3, 5, duplicate each digit to get 113355, then take the final 3 digits divided by the first 3, 355/113.

Drifter

(4,751 posts)
4. I learned this as a kid ...
Sun Mar 15, 2015, 04:17 PM
Mar 2015

May I have a large container of orange juice now (3.141592653)

Seems a bit awkward, I will never forget this phrase.

Cheers
Drifter

Hekate

(90,978 posts)
5. When I was just a wee kid, Mom used to carve the Greek letter Pi into the top crust....
Sun Mar 15, 2015, 04:26 PM
Mar 2015

...of her apple pies. I amused my grandson by doing the same recently with a chicken pot pie.

Tradition!

Bosonic

(3,746 posts)
8. Just memorize the Chudnovsky algorithm
Sun Mar 15, 2015, 06:26 PM
Mar 2015

and then you can expand pi to as many digits as you can be bothered to work out



NightWatcher

(39,343 posts)
9. No one knows past 3.1415926, so you really could just start pulling numbers outta your ass
Sun Mar 15, 2015, 06:44 PM
Mar 2015

and few people would even know it. Most people would applaud you if you rattled off 20 or 50 digits after 3.1415926.

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