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0dev

macrumors 68040
Dec 22, 2009
3,947
24
127.0.0.1
uq1F7.png
 

Doctor Q

Administrator
Staff member
Sep 19, 2002
39,782
7,513
Los Angeles
The Khan Academy has a very basic introduction to the properties of circles, including pi. They also have lots of other math lessons, plus lessons on science, art history, chemistry, biology, history, economics, and lots of other fields. Pick one and maybe you'll learn something new!

And if you don't want to watch 'em on the web, you can use their free iPad app!
 

Doctor Q

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Sep 19, 2002
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We didn't get to the last digit of pi yet

1949: The ENIAC computer computed 2,037 digits of pi in 70 hours.

1959: An IBM 704 computed 16,157 digits of pi in 4 hours and 20 minutes.

1961: An IBM 7090 computed 100,000 digits of pi in 8 hours and 43 minutes.

1989: An IBM 3090 computed 1 billion digits of pi.

1999: 200 billion digits of pi.

2005: 1.24 trillion digits of pi.

Current record: Japan’s T2K Supercomputer computed 2.6 trillion digits of pi in 73 hours, 36 minutes.

Source: Pi Day: How the 'irrational' number pushed the limits of computing
 

chordate68

macrumors regular
Oct 16, 2007
198
0
Los Angeles
The Khan Academy has a very basic introduction to the properties of circles, including pi. They also have lots of other math lessons, plus lessons on science, art history, chemistry, biology, history, economics, and lots of other fields. Pick one and maybe you'll learn something new!

And if you don't want to watch 'em on the web, you can use their free iPad app!

60 Minutes did a report on the Khan Academy a few weeks ago. The learning technique is intuitive, but not suited for schools in the poorer districts.
 

Peace

Cancelled
Apr 1, 2005
19,546
4,556
Space The Only Frontier
0110100001100001011100000111000001111001001000000011001100101110001100010011010000110001001101010011100100110010001101100011010100110011001101010011100100100000011001000110000101111001

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bradl

macrumors 603
Jun 16, 2008
5,923
17,398
Co-worker came into work with this shirt on:

41dF57eS%2BjL.jpg


Software developers laughed. Our Marketing department didn't get it.

BL.
 

Doctor Q

Administrator
Staff member
Sep 19, 2002
39,782
7,513
Los Angeles
Who is ready to challenge the world's record for the fastest time to recite the first 100 digits of pi while balancing one-legged on a balance board, manipulating a basketball and bouncing a golf ball on a rubber mallet?

Come to think of it, how many people have tried to set such a record?
 

Doctor Q

Administrator
Staff member
Sep 19, 2002
39,782
7,513
Los Angeles
Happy Pi Day 2014

Who's ready for the MIT cheer?

Cosine, secant, tangent, sine, 3.14159.
Integral radical mu dv
Slipstick, sliderule, MIT!​
And speaking of March 14, Happy 135th Birthday to Albert Einstein. I hope he divides the circumference of a pumpkin by its diameter to make some dessert. Yum!
 

rdowns

macrumors Penryn
Jul 11, 2003
27,397
12,521
Who's ready for the MIT cheer?

Cosine, secant, tangent, sine, 3.14159.
Integral radical mu dv
Slipstick, sliderule, MIT!​
And speaking of March 14, Happy 135th Birthday to Albert Einstein. I hope he divides the circumference of a pumpkin by its diameter to make some dessert. Yum!


Will you be doing something special at 1:59:26?
 

Doctor Q

Administrator
Staff member
Sep 19, 2002
39,782
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Los Angeles
Will you be doing something special at 1:59:26?
I spend most of my time doing something special, so to mark the Pi-cassion I'll do nothing special for one second. (Actually, when rounded off the time is 1:59:27.)

Of course, real geeks should use infinitely accurate clocks and celebrate Pi-time for an infinitesmal length of time.
 

The Doctor11

macrumors 603
Dec 15, 2013
5,974
1,406
New York
I know that pie is 3.1415...
I think that's pretty good.

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I just realized something! Pi next year pie day will be on the day 3/14/15 witch is exactly the first 5 numbers in pi.
 

Doctor Q

Administrator
Staff member
Sep 19, 2002
39,782
7,513
Los Angeles
22/7

The one thing I learned from Hitchhikers Guide...
One of the first programs I wrote when I learned to program was named QFR4NO, pronounced "Q-franno". It stood for "fractions for numbers" and it computed increasingly accurate fractions for a given decimal value. It found 22/7 for pi but next reported 355/113, and that's still a fairly-easy-to-remember approximation.

I know everyone's first program is supposed to be "Hello world", but I'm never one to follow the rules. :)
 

LizKat

macrumors 604
Aug 5, 2004
6,766
36,273
Catskill Mountains
Yes, Happy Pi Day, everyone! I contemplated making little pies with pi marked on them, or door posters, or some darn thing, as I have variously done on Pi Day in the past, but settled for letting Bing do all the work this year...

http://www.bing.com/images/search?q=pi+day+images

I think my favorite of the fetched images might be the "Have an Irrational Day" pin. Take off the 3.14 annotation and the whole world could wear it 24/7/365, or so it seems to me lately ;)
 
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