Happy Pi Day! (And what pie?)

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Happy Pi Day! (And what pie?)

Post by ResearchMed »

Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
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Re: Happy Pi Day! (And what pie?)

Post by samsoes »

ResearchMed wrote: Sun Mar 14, 2021 1:40 pm Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
Pi day occurred at 3/14/15 9:26:54. Won't happen again for a hundred years.
Last edited by samsoes on Sun Mar 14, 2021 2:01 pm, edited 1 time in total.
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Re: Happy Pi Day! (And what pie?)

Post by JoMoney »

I expect to get a discounted pizza later, at a place that was promoting a "Pi day special"

... but a slice of Blueberry Sour Cream Pie, with a cup of coffee would certainly hit the spot ;)
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Re: Happy Pi Day! (And what pie?)

Post by ResearchMed »

samsoes wrote: Sun Mar 14, 2021 1:53 pm
ResearchMed wrote: Sun Mar 14, 2021 1:40 pm Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
Pi day occurred at 3/14/15 9:26:54. Won't happen again for a hundred years.
:wink:

Perfect!

RM
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Re: Happy Pi Day! (And what pie?)

Post by nisiprius »

Might want to listen to Candy Apple Pie... if not the whole thing, start at 2:00 minutes in.
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Re: Happy Pi Day! (And what pie?)

Post by JoMoney »

nisiprius wrote: Sun Mar 14, 2021 2:22 pm Might want to listen to Candy Apple Pie... if not the whole thing, start at 2:00 minutes in.
:thumbsup
The ending to that was an unexpected fun surprise. Thanks for sharing!
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Re: Happy Pi Day! (And what pie?)

Post by mindboggling »

ResearchMed wrote: Sun Mar 14, 2021 1:40 pm Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
In my enthusiasm, I wished a European penpal a happy pi day and she didn't know what I was talking about. Seems they format their dates differently. So, I'm having humble pie. :happy
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Re: Happy Pi Day! (And what pie?)

Post by ResearchMed »

JoMoney wrote: Sun Mar 14, 2021 2:31 pm
nisiprius wrote: Sun Mar 14, 2021 2:22 pm Might want to listen to Candy Apple Pie... if not the whole thing, start at 2:00 minutes in.
:thumbsup
The ending to that was an unexpected fun surprise. Thanks for sharing!

Wonderful!
That is really special. Many thanks, nisi! :happy

RM
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Re: Happy Pi Day! (And what pie?)

Post by ResearchMed »

mindboggling wrote: Sun Mar 14, 2021 2:43 pm
ResearchMed wrote: Sun Mar 14, 2021 1:40 pm Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
In my enthusiasm, I wished a European penpal a happy pi day and she didn't know what I was talking about. Seems they format their dates differently. So, I'm having humble pie. :happy
Recipe and photo, please?

:twisted:

ETA: Turns out I posted this when the 'counter' for number of views for this thread was at - what else -

314

RM
Last edited by ResearchMed on Sun Mar 14, 2021 2:57 pm, edited 1 time in total.
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Re: Happy Pi Day! (And what pie?)

Post by Groundhog »

Strange but true story...
I bought a roll of fencing yesterday which I plan to make round cages with to go around plants in the garden. This morning I used pi to determine how long a piece of fence I would need to create a 24” round cage. I’ve known of pi since my school days and can recite it to a number of decimal places but never used it in practice until today. Didn’t realize it was pi day until I read this post. What are the odds!
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Re: Happy Pi Day! (And what pie?)

Post by Bylo Selhi »

samsoes wrote: Sun Mar 14, 2021 1:53 pm Pi day occurred at 3/14/15 9:26:54. Won't happen again for a hundred years.
According to International Standard ISO 8601 today is 2021-03-14. So π day can't ever happen :twisted:
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Re: Happy Pi Day! (And what pie?)

Post by heartwood »

JoMoney wrote: Sun Mar 14, 2021 1:59 pm I expect to get a discounted pizza later, at a place that was promoting a "Pi day special"

... but a slice of Blueberry Sour Cream Pie, with a cup of coffee would certainly hit the spot ;)
A pizza has a radius z and thickness a. Its volume is pizza (or pi*z*z*a)

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Re: Happy Pi Day! (And what pie?)

Post by samsoes »

Bylo Selhi wrote: Sun Mar 14, 2021 3:02 pm
samsoes wrote: Sun Mar 14, 2021 1:53 pm Pi day occurred at 3/14/15 9:26:54. Won't happen again for a hundred years.
According to International Standard ISO 8601 today is 2021-03-14. So π day can't ever happen :twisted:
Sorry, I never bought into that whole Y2K compliance nonsense.
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Re: Happy Pi Day! (And what pie?)

Post by egrets »

Groundhog wrote: Sun Mar 14, 2021 2:56 pm Strange but true story...
I bought a roll of fencing yesterday which I plan to make round cages with to go around plants in the garden. This morning I used pi to determine how long a piece of fence I would need to create a 24” round cage. I’ve known of pi since my school days and can recite it to a number of decimal places but never used it in practice until today. Didn’t realize it was pi day until I read this post. What are the odds!
For a 24" round cage I think you would need a 24 inch length of fencing plus a bit to crimp together. Maybe you mean a 24" diameter cage?
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Re: Happy Pi Day! (And what pie?)

Post by Groundhog »

egrets wrote: Sun Mar 14, 2021 3:36 pm
Groundhog wrote: Sun Mar 14, 2021 2:56 pm Strange but true story...
I bought a roll of fencing yesterday which I plan to make round cages with to go around plants in the garden. This morning I used pi to determine how long a piece of fence I would need to create a 24” round cage. I’ve known of pi since my school days and can recite it to a number of decimal places but never used it in practice until today. Didn’t realize it was pi day until I read this post. What are the odds!
For a 24" round cage I think you would need a 24 inch length of fencing plus a bit to crimp together. Maybe you mean a 24" diameter cage?
Yes, 24” diameter. 24 x 3.1415926 = 75.4. So approx 75” length of fence will make a 24” diameter round cage, a bit less when put together.
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Re: Happy Pi Day! (And what pie?)

Post by Dottie57 »

JoMoney wrote: Sun Mar 14, 2021 2:31 pm
nisiprius wrote: Sun Mar 14, 2021 2:22 pm Might want to listen to Candy Apple Pie... if not the whole thing, start at 2:00 minutes in.
:thumbsup
The ending to that was an unexpected fun surprise. Thanks for sharing!
+1 thanks!
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Re: Happy Pi Day! (And what pie?)

Post by ionball »

I like to stare at a visual representation of the first 100,000 digits.
https://brilliant.org/discussions/threa ... au-visual/
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Re: Happy Pi Day! (And what pie?)

Post by Seasonal »

mindboggling wrote: Sun Mar 14, 2021 2:43 pm
ResearchMed wrote: Sun Mar 14, 2021 1:40 pm Happy Pi Day!

🍷 🍷

... and what special pie are you cooking today?

Anything especially relevant to pi itself?

I'm starting with a pumpkin pie. Those tasty spices deserve to be enjoyed more often than at the traditional Thanksgiving time.

Thanks, and Cheers!

RM
In my enthusiasm, I wished a European penpal a happy pi day and she didn't know what I was talking about. Seems they format their dates differently. So, I'm having humble pie. :happy
Speaking of which https://www.amazon.com/Humble-Pi-When-W ... 0593084683
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Re: Happy Pi Day! (And what pie?)

Post by nisiprius »

In Mathematical Recreations, W. W. Rouse Ball wrote:
De Morgan was explaining to an actuary what was the chance that a certain proportion of some group of people would at the end of a given time be alive; and quoted the actuarial formula, involving π, which, in answer to a question, he explained stood for the ratio of the circumference of a circle to its diameter. His acquaintance, who had so far listened to the explanation with interest, interrupted him and exclaimed, “My dear friend, that must be a delusion, what can a circle have to do with the number of people alive at a given time?”
I've seen this quoted more than once, but today, as I read it, I wonder: does anybody know exactly what formula that is? I can easily imagine actuarial formulas involve e, but I, too, have trouble seeing how π would be involved.
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Re: Happy Pi Day! (And what pie?)

Post by F150HD »

anyone remember the little hot apple pies McDonalds used to sell? I recall them as a kid, that was a rare treat when we got one.

Ah, via Google I see they are back.
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Re: Happy Pi Day! (And what pie?)

Post by JoMoney »

F150HD wrote: Sun Mar 14, 2021 6:21 pm anyone remember the little hot apple pies McDonalds used to sell? I recall them as a kid, that was a rare treat when we got one.

Ah, via Google I see they are back.
Pretty sure the McDonalds apple pie never went away. They did add some other flavors though, I think cherry pie is an option now.
I've been told that through the "app" they're giving away free pie on pi day ;)
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Re: Happy Pi Day! (And what pie?)

Post by gwe67 »

Made a blackberry pie (canned filling/store-bought crust).
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Re: Happy Pi Day! (And what pie?)

Post by yog »

nisiprius wrote: Sun Mar 14, 2021 5:37 pm In Mathematical Recreations, W. W. Rouse Ball wrote:
De Morgan was explaining to an actuary what was the chance that a certain proportion of some group of people would at the end of a given time be alive; and quoted the actuarial formula, involving π, which, in answer to a question, he explained stood for the ratio of the circumference of a circle to its diameter. His acquaintance, who had so far listened to the explanation with interest, interrupted him and exclaimed, “My dear friend, that must be a delusion, what can a circle have to do with the number of people alive at a given time?”
I've seen this quoted more than once, but today, as I read it, I wonder: does anybody know exactly what formula that is? I can easily imagine actuarial formulas involve e, but I, too, have trouble seeing how π would be involved.
The Circle of Life has gamma distributions derived from the gamma function, and the special values of the gamma function contain pi:
https://actuarialmodelingtopics.wordpre ... -function/

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Re: Happy Pi Day! (And what pie?)

Post by F150HD »

JoMoney wrote: Sun Mar 14, 2021 6:55 pm
F150HD wrote: Sun Mar 14, 2021 6:21 pm anyone remember the little hot apple pies McDonalds used to sell? I recall them as a kid, that was a rare treat when we got one.

Ah, via Google I see they are back.
Pretty sure the McDonalds apple pie never went away. They did add some other flavors though, I think cherry pie is an option now.
I've been told that through the "app" they're giving away free pie on pi day ;)
Don't go there frequently enough to track their menu items but area I was in (years ago) they were not available. Maybe it was due to the pie recipe change a few years back.

https://thetakeout.com/review-mcdonalds ... 1829182481
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Re: Happy Pi Day! (And what pie?)

Post by cashheavy18 »

Fresh strawberry :D
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Re: Happy Pi Day! (And what pie?)

Post by nisiprius »

yog wrote: Sun Mar 14, 2021 7:26 pmThe Circle of Life has gamma distributions derived from the gamma function, and the special values of the gamma function contain pi:
https://actuarialmodelingtopics.wordpre ... -function/

Image
Thank you!

And I just remembered that the height of the peak of the Gaussian distribution has π in it. So we can get π into financial statistics if we try.
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Re: Happy Pi Day! (And what pie?)

Post by Clever_Username »

Dang it, why did I pick the month that contains pi day to be more careful about what I eat?
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Re: Happy Pi Day! (And what pie?)

Post by nisiprius »

I was desolated to read of the demolition of the Pyare Square Building in Madison, Wisconsin.

Image

Pyare Square Building being slowly demolished after 47 years of prominence on West Side
From “iconic” to “blighted,” a variety of adjectives have been used over the years to describe the towering Pyare Square building in Shorewood Hills... Named for the mathematical formula to calculate the area of a circle (A=πr²), Pyare Square was completed in 1969 and served as home for the state Department of Natural Resources for its first 10 years.
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Re: Happy Pi Day! (And what pie?)

Post by F150HD »

Kings 7:23

And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it round about.
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Re: Happy Pi Day! (And what pie?)

Post by ohboy! »

nisiprius wrote: Sun Mar 14, 2021 2:22 pm Might want to listen to Candy Apple Pie... if not the whole thing, start at 2:00 minutes in.
Great! Cheers to those fellas
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Re: Happy Pi Day! (And what pie?)

Post by tomsense76 »

Happy Pi Day!

Did not expect to see a Gamma Function pop up here :D

My favorite formula with pi has always been Euler's identity (not sure how we get LaTeX to work here :wink:)

Code: Select all

e^{ i \pi } + 1 = 0
Captures e, pi, i, 1, and 0 all in one formula.
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Re: Happy Pi Day! (And what pie?)

Post by manatee2005 »

Banana cream pie of course.
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Re: Happy Pi Day! (And what pie?)

Post by Rudedog »

Grandson's second birthday, pizza pie from Papa John's, he loves the black olives.
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Re: Happy Pi Day! (And what pie?)

Post by Swee'pea »

We celebrated with chocolate pecan. The strawberry plants are coming up, so I think fresh strawberry pie is in our future.

With St. Patrick's day approaching we may segue into savory steak and Guinness pie or Irish pasties. Oh my, pi.
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Re: Happy Pi Day! (And what pie?)

Post by Vtsax100 »

JoMoney wrote: Sun Mar 14, 2021 6:55 pm
F150HD wrote: Sun Mar 14, 2021 6:21 pm anyone remember the little hot apple pies McDonalds used to sell? I recall them as a kid, that was a rare treat when we got one.

Ah, via Google I see they are back.
Pretty sure the McDonalds apple pie never went away. They did add some other flavors though, I think cherry pie is an option now.
I've been told that through the "app" they're giving away free pie on pi day ;)

They never went away but they are a sorry shell of what they once were.
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Re: Happy Pi Day! (And what pie?)

Post by hudson »

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Re: Happy Pi Day! (And what pie?)

Post by Peculiar_Investor »

For some background ... A Slice of Pi (π) Day History | Exploratorium
March 14 is Pi (π) Day, the annual celebration of a never-ending number—and Albert Einstein’s birthday. How did pi inspire a national holiday and an international celebration thousands of years after its discovery? It all started at the Exploratorium with former staff physicist, tinkerer, and media specialist Larry Shaw.

In 1988, three years after the death of Exploratorium Founder Frank Oppenheimer, staff gathered at a retreat in Monterey, California, to soul search and brainstorm. It was there that Shaw linked March 14 (3.14) with the digits of pi (3.14159…), seeing it as an extraordinary opportunity to bring Exploratorium staff together. And π Day was born.

On the first π Day, at 1:59—the π numbers that follow 3.14—Larry and his wife, Catherine, set up a table on the museum's floor topped with fruit pies and a tea urn for the celebration.
I love the fact they've chosen that specific time for the celebration.

BTW, In March 2009, π Day became an official U.S. national holiday.

Other oddities about π Day. Albert Einstein was born on π Day (1879) and Stephen Hawking passed away on π Day (2018).
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Re: Happy Pi Day! (And what pie?)

Post by bob60014 »

Drivin my Chevy past the levee and will buy some American Pie.....

Apple of course! ;)
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Re: Happy Pi Day! (And what pie?)

Post by MGBMartin »

Not going to make one but if I could get my hands on a Melton Mowbray pork pie I’d have a happy pi day.
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Re: Happy Pi Day! (And what pie?)

Post by gatorking »

"When the moon hits your eye like a big pizza pie, that's amore ..."
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Re: Happy Pi Day! (And what pie?)

Post by Glockenspiel »

We're having pie today here at work (engineering office). Hopefully some Key Lime, Lemon Meringue, Apple, or Blueberry with a nice crumb topping.
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Re: Happy Pi Day! (And what pie?)

Post by whitecollarhillbilly »

I made it a point to buy a Pi Day tee shirt several years ago....but then again I'm a nerdy engineer.

Happy Pi Day to all!
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Re: Happy Pi Day! (And what pie?)

Post by ResearchMed »

I think I'll just wear the t-shirt that DH gave me a couple of years ago, the one with pi to the first 100 digits.

And wouldn't you know, at a valet parking area, one of the valets (probably college student part time job?) looked at it, looked at me (gray-ish hair older female), and asked, very politely and friendly, "Do you know the digits of pi?"

I smiled, and started listing them... after about 10 or 12 digits, he laughed and said, "Thanks! You win!" with a big grin.

Fun.

And no, I don't know all of the first 100, but I've started working on it again.
Hey, it can come in handy in the most unexpected places! :D

RM
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Re: Happy Pi Day! (And what pie?)

Post by Peculiar_Investor »

whitecollarhillbilly wrote: Thu Mar 14, 2024 10:25 am I made it a point to buy a Pi Day tee shirt several years ago....but then again I'm a nerdy engineer.
Another engineer here. My username often gets shortened to P_I. Both influenced my avatar choice so I can celebrate Pi day each and every day. 😁
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Re: Happy Pi Day! (And what pie?)

Post by veggivet »

Groundhog wrote: Sun Mar 14, 2021 2:56 pm Strange but true story...
I bought a roll of fencing yesterday which I plan to make round cages with to go around plants in the garden. This morning I used pi to determine how long a piece of fence I would need to create a 24” round cage. I’ve known of pi since my school days and can recite it to a number of decimal places but never used it in practice until today. Didn’t realize it was pi day until I read this post. What are the odds!
The odds would be 3.14:1, of course!
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Re: Happy Pi Day! (And what pie?)

Post by Tamalak »

In lieu of pie I'm going to have 3.141 glasses of whiskey
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Re: Happy Pi Day! (And what pie?)

Post by HIinvestor »

Our local market is giving away free slices of chocolate haupia pie. I plan to get myself a slice today. Yum. Will also go to my fav pie-maker and buy some pies from her and a few quiches from Costco for a meeting tonight.

My friend wanted hot pizza and I have decided it will not work out with all the driving to pick up and drop off folks to also get hot pizza for meeting. Quiche at whatever temperature it is!
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Re: Happy Pi Day! (And what pie?)

Post by Bylo Selhi »

Peculiar_Investor wrote: Thu Mar 14, 2024 10:50 am
whitecollarhillbilly wrote: Thu Mar 14, 2024 10:25 am I made it a point to buy a Pi Day tee shirt several years ago....but then again I'm a nerdy engineer.
Another engineer here. My username often gets shortened to P_I. Both influenced my avatar choice so I can celebrate Pi day each and every day. 😁
Meanwhile the Perimeter Institute of Theoretic Physics, [note the initials and the logo], makes no mention of today's significance on their Events horizon. Embarrassing.

Image

OTOH at my alma mater the Mathies do know how to celebrate Pi day https://www.youtube.com/watch?v=nNm7Y7dXXOQ
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Re: Happy Pi Day! (And what pie?)

Post by MP173 »

Two things to celebrate PI day:

1. Thin crust 16" pizza from local C-store for $3.14. Actually it is very good.
2. Using my Hemmi 250 slide rule for certain calculations, but then again, it is used most days.

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Re: Happy Pi Day! (And what pie?)

Post by physics911 »

Bylo Selhi wrote: Sun Mar 14, 2021 3:02 pm
samsoes wrote: Sun Mar 14, 2021 1:53 pm Pi day occurred at 3/14/15 9:26:54. Won't happen again for a hundred years.
According to International Standard ISO 8601 today is 2021-03-14. So π day can't ever happen :twisted:
Or if you make an arbitary judgement that the day is 3/14.1592654, then it happens every year on 3/14 around 3:49 a.m.
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