Showing posts with label pi. Show all posts
Showing posts with label pi. Show all posts

Saturday, December 17, 2022

Dec 17 2022 - Pi in the Sky

 

I heard an interview with Darren Aronofsky, the director of the Move Pi.  (Not to be confused with Life of Pi). So I went and read the plot summary on Wikipedia HERE.  That is fascinating of itself.    Such imagination to created that set of circumstances and events.  The themes of the film are religion, mysticism and the relationship of the universe to mathematics. 

Coming up is the 25th anniversary of the movie.  Darren Aronofsky gets back the rights to the movie - he put that in the contract at the time of his directorial debut.  He said he is going to launch the refurbishment of the movie on Pi Day, March 14th.   This gives new meaning to Scientific American calling Pi Day the celebration  "Irrational exuberance".


And Pi?  What about it?  Pi is an irrational number, meaning it cannot be expressed as a fraction.  Pi is a transcendental number, a real number that is not algebraic, or in even more technical terms, a real number that cannot be a root of a polynomial equation with integer coefficients.

Where did Pi come from?  The earliest known reference to Pi comes from ancient civilizations such as the Egyptians and the Babylonians (4,000 years ago). In ancient times, documents such as the Rhind Mathematical Papyrus found the area of a circular shape in a curious, three-step manner.  
Here is the explanation of the experiment from Scientific American:  

"Try a brief experiment: Using a compass, draw a circle. Take one piece of string and place it on top of the circle, exactly once around. Now straighten out the string; its length is called the circumference of the circle. Measure the circumference with a ruler. Next, measure the diameter of the circle, which is the length from any point on the circle straight through its center to another point on the opposite side. (The diameter is twice the radius, the length from any point on the circle to its center.) If you divide the circumference of the circle by the diameter, you will get approximately 3.14—no matter what size circle you drew! A larger circle will have a larger circumference and a larger radius, but the ratio will always be the same. If you could measure and divide perfectly, you would get 3.141592653589793238..., or pi."  

And how many digits are there?  More than six billion have been identified through computer computations.


Christmas themes at the Fantasy of Trees this year.
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Tuesday, March 15, 2022

Mar 15 2022 - Pi Day Yesterday

 

That was Pi Day yesterday - 3.14.  


Pi has a long celebration for the the chronology of its computation.  The Wikipedia entry  HERE shows its milestones:

Before 1400
1400-1949
1949-2009
2009 - present

The most accurate value of Pi?
A Swiss university has set a new world record for calculating the mathematical constant pi to 62.8 trillion decimal places. To reach this record a supercomputer worked solidly for 108 days and nine hours, according to the team from The University of Applied Sciences in Graubünden. April 2021

The most Pi places memorized?  
It is 70,000 and achieved by Rajveer Meena on March 15 2015.  It took nearly 10 hours.  He was blindfolded.

I can't imagine being named Pi.  It would be an "unending" series of jokes on one's name.  It is a Chinese surname so not quite as bad as a first name.  However, Wikipedia says that Chinese people address each other with surname, first name and middle name, so I guess it would be a probable source of irritation.  I guess that this is part of the reason I find Pi jokes so funny. A name and a mathematical construct.  How many Pi jokes are there?  More than 3.14!

Here are just a few.   

Why should you never start talking to pi at a party?
Because it just goes on forever.

Why is pi so lucky in love?
Because its love is infinite and non-repeating.

What do you call it when someone gets a huge tattoo of pi on their face?
An irrational decision.

Why shouldn’t you eat too much pi?
You’ll end up with a big circumference.

Why did pi fail its driving test?
Because it didn’t know when to stop.


 


A note to self to make sure I grow Sweet Peas this year - they have a wonderful fragrance. 
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