I placed my free PI-poster at http://www.wiblocks.com
Thanks to D.K., TeX and Friends.
(* jcl *)
?
Over a day to go...
But also ?++
Over a day to go to what?
PI day...
Keep up 
AWOL:
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Pi day is on the 14th of march (3.14 - the date being the first three digits of pi). Pi day has its own website: http://www.piday.org/ which should have more details.
Onions.
3.14 - the date being the first three digits of pi
...in decimal.
God! How lame is that?
(Besides, it's 14/3, not the 22nd of July)
XD XD XD
I just found out something even funnier than pi-day on wikipedia:
Pi Approximation Day is held on July 22 (or 22/7 in day/month date format), since the fraction 22?7 is a common approximation of ?
Who comes up with these things!?
Onions.
22 / 7 is for primary school kids.
355 / 113 is a much better approximation.
or just remember 3.141592654
How many nerds don't know that? Come on!?
or just remember 3.141592654
As was mentioned 22/7 is useful for primary school kids.
Can also be useful for doing quick approximations in your
head.
(* jcl *)
But it's still better than remembering 355/113 
or just remember 3.141592654
How many nerds don't know that?
Uber nerds just remember 4atan(1)
Well I get 3.141592654 as one more degree of accuracy still
Anyway happy american PI-day
Don McLean anyone? 
I read once that pi seconds is roughly a nano-century.
Edit: 3.155 seconds. Pah!
That's almost as bad as Indiana's Pi Bill.
The square root of gravitational constant g=9.81 is close to PI and we use that as a trick to cancel Pi^2 with g in physics all the time. Most students I teach don't remember 11^2=121 to 19^2=361 so many numerical things I do on the board is like magic.
The square root of gravitational constant g=9.81
I can hardly bring myself to point out that the gravitational constant is a good deal smaller than that.
About twelve orders of magnitude smaller.
No wonder the students think it magic.
355 / 113 is a much better approximation.
Yes, it is. It is also harder to remember, though.
"+Pi()"
To me, that looks screwy, because pi is constant, not a function.
(but then, I never liked spreadsheets)