Happy Pi Day !!

The Power of Pi Compels you.

There aren’t many constants in Life, but you can always count on Pi. Today is the 24th annual celebration of that wonderfully useful yet completely irrational number…Pi.

Although the Greek letter has been around since…well…ancient Greece, the number was first named Pi by the mathematician William Jones in 1706. He used it as an abbreviation for “periphery/diameter”. Before this, good old Pi was known as Archimedes’ Constant.

Pi  is an irrational number, which means that its value cannot be expressed exactly as a fraction having integers in both the numerator and denominator. With it you can figure out the diameter and area of  a circle. Without Pi we wouldn’t have wheels or gears or PIE! On second thought , we’d probably still have Pie.

Many people celebrate Pi Day by competing to see who has memorized the most digits. Akira Haraguchi, has claimed he has memorized 100,00 digits but this has not been confirmed by the Guinness Book of Records. The Guinness-recognized record for remembered digits of π is 67,890 digits, held by Lu Chao, a 24-year-old graduate student from China.It took him 24 hours and 4 minutes to recite to the 67,890th decimal place of π without an error. If you want to memorize Pi, click here to see Pi rendered to a million digits. Get cracking.

You can also celebrate the day by baking a Pi Pie. Many Pi-philes will gather to form huge human Pis.

Bake a Pi Pie.


Here’s J. Tobin School in Boston .


Wait a minute….


If you missed this year’s celebration you can gear up for Pi


Approximation Day on July 22nd.

Get some Pi Swag here.




Happy Pi Day!

Baking the traditional pi’s.

Today we celebrate all things pi. The first Pi Day was celebrated in 1989 at the San Francisco Exploratorium, whose staff celebrates most years by walking in a circle around a “Pi shrine” a little more than 3 times.  School children will learn about the history of Pi.  How we wouldn’t have wheels without pi.



The youngest child has the honor of lighting the pi candles.

Traditional families will light the pi candles at 7:38 in the morning and then spend the day dividing twenty-two by seven.

In some countries, folks celebrate Pi day with the Traditional Hot Dog Toss. During which hot dogs are thrown on to a floor marked with evenly spaced parallel lines.

Why? Because the proportion of hot dogs that cross the lines when they fall works out to be approximately 1 over Pi!

The day comes to an end when celebrants form the pi formation and recite pi from memory. One by one, people will drop out of the formation until a person who has memorized the most digits is declared the winner.


Pi echos from the hills as the Pi Formations join as one voice!

Repeat after me…..

3 POINT 141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128

When you have these memorized you may continue your study by clicking here.

Alpha Delta PI Sorority Alabama
Alpha Delta PI Sorority Alabama