## Happy Pi Day 351 351

Jonathan writes

*"Today, the 14th of March, is Pi Day 2008. Pi Day is internationally celebrated in honor of the mathematical constant "Pi," who's actual value will — now and forever — remain unknown. NeoSmart Technologies has a run-down on the history of Pi, Pi Day, and the significance of Pi and other such "magical numbers" to science and technology. 'Pi isn't just a number that you can use to calculate circle-related mathematics, it's a symbol of something by far greater. Pi is one of many "magic" numbers that are found everywhere — if you know where to look. These magic numbers can't be explained, they just are. And if you use them right, they make it a lot easier to do a lot of really complicated things... In a way, they're a testimony to technology and computers (or vice-versa, depending on how you look at it).'"*
## Talk Like A Physicist Day (Score:5, Interesting)

## March 14, 2015 (Score:2, Interesting)

## Pi Day? Sing it! (Score:3, Interesting)

Lots of songs have been written about Pi Day (Google "Pi Day Songs" to find 'em).

One of the more creative is this rap song (with video) [teachpi.org] to the tune of Eminem's LOSE YOURSELF.

Best enjoyed with a slice of pie. Right, Agent Cooper?

## alternative representation in modular arithmetic (Score:5, Interesting)

March 14, 15:92:65

The proper representation is modular-place arithmetic. Instead of assuming each number chunk is either decimal or hundreds, you use the actual size of the place. The Calendar places are:

12 months

31 days

24 hours

60 minutes

60 seconds

So 3.14159265 is

3 months, remainder

4 days, remainder

9 hours, remainder

20 minutes, remainder

42 seconds, remainder

In other words March 4 9:20:43

## In honor of Pi day... (Score:-1, Interesting)

## I went to school with nerds. (Score:2, Interesting)

## 42 (Score:4, Interesting)

## Good book about Pi (Score:3, Interesting)

I found it entertaining and easy to read while at the same being informative/interesting. I feel the book gives a very good presentation of the thought process behind how different civilizations reached their approximation of Pi and a good insight into how brilliant people of different times where able to calculate Pi. I bet a lot of "ordinary" people wouldn't have a clue about how to find a good number for Pi, without hitting their "Pi"-button on a calculator

A good read. Very nice addition to say, your toilet library (I've got one...)

## Re:Unknown value? (Score:3, Interesting)

BTW, forget the years of college math - I learned late in life that just about anything you'd need is in Cryptonomicon - http://www.cryptonomicon.com/text.html [cryptonomicon.com]

Watch out for June 2 on this evenly-numbered year - that'll be Dick Tracy day!

## Hard 'n Phirm (Score:2, Interesting)

The patron saint of imperfection frees us from our sin.

And if our transcendental lift shall find a final floor,

Then Man will know the death of God where wonder was before.

## Re:Unknown value? (Score:3, Interesting)

You can do non-integer bases, but it gets interesting. Non-rational bases get even more interesting. Maybe not practical for much, and you can't represent the "normal" integers usefully, but it's still a field and all of the abstract algebra still works.

## Re:What do you mean by unknown? (Score:1, Interesting)