# Happy Pi day

1. Mar 13, 2007

### interested_learner

All of you have a happy international Pi day.

2. Mar 13, 2007

### Ki Man

pi=3.13? may wanna check those calculations again =]

3. Mar 13, 2007

### d_leet

It's not pi day yet..

4. Mar 14, 2007

### dontdisturbmycircles

woohoo, pi day is finally here!! :uhh: :tongue: Can't wait til pi+0.01 day

Last edited: Mar 14, 2007
5. Mar 14, 2007

### d_leet

Another hour and a half for me..

6. Mar 14, 2007

### dontdisturbmycircles

Last edited: Mar 14, 2007
7. Mar 14, 2007

### mattmns

Hmmmm, $\pi$

8. Mar 14, 2007

### neutrino

I'd rather remember today as Einstein's birth anniversary, and wait till April 31st for pi-day.

9. Mar 14, 2007

### hypatia

pi day again already? Just where has the year gone? I didn't even get my pi day shopping done.

10. Mar 14, 2007

Are there e and i days, too? :tongue2:

11. Mar 14, 2007

### neutrino

e-day: 27th January
i-day: e^(i*pi/2) = 27th Jan^(i*31st April/2) = :uhh:

12. Mar 14, 2007

The only problem is, how to decide if it's celebrated at 3:14 am or 3:14 pm.

13. Mar 14, 2007

### neutrino

3.14 is taken care of by the date. So you celebrate it at 1:59:26(.5) in the morning (or in the afternoon if you don't use a 24-hour clock).

14. Mar 14, 2007

### humanino

I don't see it as a problem. We can precisely define pi's birth in this scheme, minutes second and everything, can't we ?

I mean :
month day hour minute sec...
3 14 15 9 27

now, maybe I see your objection
why not :
month day hour minute sec...
3 1 1 9 2
or :
month day hour minute sec...
3 14 1 59 27
...

indeed, I assumed that one fills as much decimal places as possible at each step. Thus for instance I took 9 minutes, because 92 minutes exceeds 60=1h... This might be a little simplistic, or even unesthetical. But eh, why not celebrating on the first of march otherwise ?

A more esthetical solution, would be to write down everthing in a decimal basis.

15. Mar 14, 2007

### humanino

I do use a 24-hour clock, but I would have thought we need to pick up 15:9:26

this is highly debatable...

16. Mar 14, 2007

Now you see it indeed is a sophisticated issue, gentlemen.

17. Mar 14, 2007

Oh yes, and there's another issue. In my country, we write the day first, and then the month, so we have no pi day! Which proves that the pi day is a those-who-write-the-month-first-o-centric product. Down with it! :tongue2:

18. Mar 14, 2007

### Math Is Hard

Staff Emeritus
Pi day at last! Can't wait to get up to campus at lunch time. Usually the math department sells yummy pie slices for a buck.

19. Mar 14, 2007

### neutrino

And that's why I said that I would rather wait will April 31st. This is strictly a US-centric Pi-day.

20. Mar 14, 2007

### MotolovCocktail

I know the first 120 digits of pi:

3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651

whew!

thats all I know off the top of my head.