# Pi Day 2023

Tagged:`Beauty`

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`Food`

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`Math`

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`Obscurantism`

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`TheDivineMadness`

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`ϜΤΦ`

Today is Pi Day (3/14) in 2023. Sort of.

## Pi Day?

Well, of course, it depends on your date notation!

- 3/14 sort of makes sense (in decimal), but 3/14/2023 most emphatically does not.
- And the American notation of MM/DD/YYYY is also crazy from the start. Clearly you should
either go in increasing or decreasing order of granularity:

o DD/MM/YYYY (as in Europe) or

o YYYY/MM/DD (as in the ISO standard).

But non of those express*π*very well, beyond 3 significant digits.

The Correct Way, of course, has nothing to do with decimal digits: either continued
fractions in the Way of Gosper, or binary if you *must* have a polynomial expansion way of
expressing the continued fraction, or at least with real pie.
As we wrote 2 years ago, here on this Crummy Little Blog
That Nobody Reads:

(Why has nobody ever built Gosper continued fraction hardware as an alternative to floating point? Is it because of the exponents?)

Of course, no Pi Day would be complete without a quick visit to the inimitable Vi Hart,
who always has, by definition, The Most Interesting Opinions. (This one apparently
involves General Relativity and observable amounts of curvature influencing measurement of *π.*)

I mean, anybody who can talk their friends into
playing homemade cardboard instruments in a quintet *while they are set on fire*
is… well, at the very least quite persuasive! Possibly frighteningly so.

## Notes & References

1: Nope. Go eat pie, or something.

*Published*Tue 2023-Mar-14

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