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We at CatSynth once again, celebrate Pi Day on its three-digit approximation, March 14 (3-14).

We start with some interesting facts about the digits of pi. We presented statistics about the distribution in our 2007 Pi Day post. From super-computing.org, we present some interesting patterns:

**01234567890** first occurs at the 53,217,681,704-th digit of pi.

**09876543210** first occurs at the 42,321,758,803-th digit of pi.

**777777777777** first occurs at the 368,299,898,266-th digit of pi.

**666666666666** first occurs at the 1,221,587,715,177-th digit of pi.

**271828182845** first occurs at the 1,016,065,419,627-th of digit pi. (that’s *e* for those who haven’t memorized it)

**314159265358** first occurs at the 1,142,905,318,634-th digit of pi.

Last year, we showed the relationship to the Gamma function, and of course to Euler’s identity, which links pi surprisingly closely to the imaginary constant *i* and the number *e*. But it is also surprisingly easy to generate pi from simple sequences of integers. Consider the Madhava-Leibniz formula for pi:

Thus one can generate pi from odd integers and simple arithmetic. Another formula only involving perfect squares of integers comes from the Basel problem (named for the town of Basel in Switzerland):

In recognition of Pi Day, the U.S. House of Representatives passed a resolution this week:

And thus the sad history of pi in politics as exemplified by the Indiana Pi Bill of 1897 is put to rest. Now onto erasing the sad history of science and politics in general of the past eight years…

I do find it interesting that our two previous presidents leave the new one a collapsed stock market. But I digress, I don’t think cats/synths & politics should meld.

For someone who’s very bad at math, ‘pi’ + number ‘e’ = ‘pie’ – Yummy!

You know, all the jokes about “pie” aside, I never thought of pi + e before…

Most interesting post!!

The comments in your Monday post will not work for me 🙁

Was thinking the 36 is a nice number and you give nice facts!!

Maybe the best thing about 36 is BIRTHDAY cake you will have ?????

If that is correct…HAPPY BIRTHDAY!!!!!!!!!

If not…enjoy some cake 🙂

Purrs Mickey

There was definitely a problem earlier with accessing the “36” post for comments. I fixed it this evening, and copied your comment to that post as well. And yes, thanks for the birthday wishes 🙂