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# Pi Day, E Day, Phi Day and other math-related holidays

Sun 14 Mar, 2021 09:55 pm
Today, as of the time of the posting of this is March 14, which is Pi Day:

https://en.wikipedia.org/wiki/Pi_Day

Yes, there's a holiday dedicated to the number π (pi), which is 3.1415926....

Similarly there is an E day, or Euler's Number Day, February 7, which celebrates the number e, or Euler's constant, which is 2.7182818.... :

https://www.timeanddate.com/holidays/fun/e-day#:~:text=Euler's%20number%20is%20commonly%20celebrated%20on%20February%207.&text=People%20living%20in%20countries%20that,digits%20of%20e%20(2.71).

There's even a Phi Day, or Golden Ratio Day which is June 16:

https://www.mentalfloss.com/article/546530/happy-phi-day-last-day-match-golden-ratio-century#:~:text=According%20to%20Bloomberg%2C%20June%201,digits%20of%20the%20golden%20ratio.
https://www.mentalfloss.com/article/546530/happy-phi-day-last-day-match-golden-ratio-century#:~:text=According%20to%20Bloomberg%2C%20June%201,digits%20of%20the%20golden%20ratio.

Phi is 0.618033988749894....

Does anyone here care about all this? If so, Happy Pi Day 2021!

What math-related holidays do you like? Feel free to discuss about them here.

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Type: Discussion • Score: 3 • Views: 1,038 • Replies: 3
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izzythepush

0
Mon 15 Mar, 2021 02:16 am
Most countries portray the date as DMY, America may be the only country to use MDY.

That changes everything.
Linkat

1
Mon 15 Mar, 2021 02:55 pm
@izzythepush,
izzythepush wrote:

Most countries portray the date as DMY, America may be the only country to use MDY.

That changes everything.

that's why you will never have things like pi day. sad really sad
izzythepush

0
Mon 15 Mar, 2021 03:04 pm
@Linkat,
I’m bereft.
0 Replies

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