Happy Pi Day

[Cagivagurl]

143 ≡ 142.9999999999…

0.25 ≡ 0.2499999999…

371

 

[Cagivagurl]

Or in another language

φ^2​

 

[EmilyMiller]

371

OK - I was being super obtuse - and not acutie

 

[Bramblethorn]

But the more accurate Pi Day is in July: 22/7.

 

[Tio_Narratore]

As I noted on the other thread, I went to buy a quiche at the Tau Supermarket today. For some reason, they were offended, and made me buy two of them.

 

[Britva415]

At the τ Bakery, their "four inch quiche" is eight inches in diameter!

 

[JuanSeiszFitzHall]

Can we have Euler’s Day on Jan 27th (using European dates)?

If only it were so easy. I am vexed, unable to decide in favor of either school of thought on the Avogadro moment. Should it be roughly 5 a.m. on June 3, or should it be on June 2, at exactly 10:23 in the morning? There is even more rancor expressed about when and how to observe the fine structure constant. (Scientific journals try to suppress these statements, but they leak out through the dark web.)

At least, Avogadro occurs when the weather is often pleasant, in the Northern Hemisphere temperate zones. Festivities might take place outdoors. Does anyone have a recipe for barbecued mole?

 

[ericalauren]

I had a high school math teacher who gave out cherry pie on Pi Day. Happy Pi Day to him!

 

[sirhugs]

Ahem. Cough cough. The pi moment cannot occur on March 14. Ahem. Doing so would truncate the '159(etc.)' that follows the first three digits. Therefore, a proper observance of the pi moment would occur shortly before 4 a.m. on March 15. Cough. I would gladly consume pie at that time. Ahem. Or at any other time, but then not in connection with this number.

Ahem. I find it regrettable that there is no similar annual observance of the root of the natural logarithm (around February 21, varying by leap year) or the Feigenbaum constant (around April 21). Granted, I would not be interested in consuming logs. Nor feigenbaums. Ahem.

is that why I had my pie for breakfast just after 4 am today?

 

[sirhugs]

Saw this over on LinkedIn;

" Pi day is a fake holiday created by math companies to sell more math."

 

[MajorRewrite]

Mmmmmm, piiiiiiiiiiiiie

 

[designatedvictim]

Mmmmmm, piiiiiiiiiiiiie

Day-old pie...

Wait! You joined the forum on Pie Day!

 

[Candy_Kane54]

 

[JuanSeiszFitzHall]

Yule logs would keep until February. Or marzipan logs. And a Feigenbaum is a fig tree, so eating figs would make sense. You could make a log cake with fig paste in it, even...

This was merely an expression of my own preferences. My dislike of anything involving a 'log' derives from an encounter, in my youth, with a 'cheese log.' Also, I've never cared for figs, although I tolerate them in the cake/cookie object named after a British physicist. O mileage, how thou dost vary.

 

[old_prof]

I've never cared for figs, although I tolerate them in the cake/cookie object named after a British physicist.

Fig Newtons were named for the town in Massachusetts, not the physicist.
And they are false advertising, they should be called Fig quarter Netwons, because it takes approximately 4 cookies to generate a Newton of gravitational force at the earth's surface.

 

[yowser]

Frig Newton

 

[EmilyMiller]

It’s (π + 1) day, which surely is exuse enough to link the four most important numbers in math, and π as well:

exp(πi) + 1 = 0​

 

[BeechLeaf]

I never liked that much. It's a special case. A character (an 18-year-old girl) in one of my shelved, unusable WIPs is wearing a T-shirt saying the real thing (and humph, I don't seem to be able to do superscript here, so bold instead): eiz = cis z

 

[EmilyMiller]

I never liked that much. It's a special case. A character (an 18-year-old girl) in one of my shelved, unusable WIPs is wearing a T-shirt saying the real thing (and humph, I don't seem to be able to do superscript here, so bold instead): eiz = cis z

It’s either the most beautiful equation in math, or saying that if you turn 180 degrees you end up facing in the opposite direction

 

[BeechLeaf]

I love it so much. I think students should be stampeded towards it. Everyone doing school mathematics gets basic calculus, and here's e which is in a special function that is its own derivative. And they all get sin and cos, which are about circles and triangles. And they all get quadratic equations, and some more can be solved if you invent a thing called i. None of these three have anything to do with each other at school level, until... Here are three fundamental things unified.

 

[Britva415]

I love it so much. I think students should be stampeded towards it. Everyone doing school mathematics gets basic calculus, and here's e which is in a special function that is its own derivative. And they all get sin and cos, which are about circles and triangles. And they all get quadratic equations, and some more can be solved if you invent a thing called i. None of these three have anything to do with each other at school level, until... Here are three fundamental things unified.

And it really isn't that hard to teach them what i is and the complex plane too.

(The other prerequisites for appreciating Euler's identity.)