Thursday, March 14, 2013

Happy Pi Day 2013

Today is Pi Day.

Just what is Pi Day? Well since the value of Pi is considered to be 3.14 then today date of 3-14-13 is this year’s Pi Day.

The number Pi (or π, if you’re using the Greek letter) is a mathematical constant. It’s technically the ratio of any circle's circumference to its own diameter. For general use, Pi is the number you get when dividing 22 by 7. It’s approximately equal to 3.14159.
What’s special about Pi? Well here are a few interesting things:
  •  Pi is an irrational number. In irrational number is one that can’t be written exactly as a ratio of two integers. That means when people say Pi is just 22/7, they’re technically not correct. 

  •  Pi is a transcendental number, which means that despite thousands of years of people trying to do it, it is impossible to solve the ancient challenge of “squaring the circle.” It means using the tools of a compass and straight-edge to construct a square with the exact same area as a circle.

  •  Pi has a decimal pattern never repeats. So far, nobody has been able to distinguish a pattern of repeating numbers in the digits that flow to the right of the decimal point, despite having been calculated out to more than a million decimal places.
                Here’s an example: 3.14159265358979323846264338327950288419716.

As a vocational college, we find that most of our students are adults who use everyday math just fine but have forgotten some of the things they learned in secondary school. Geometry and the concept of Pi are concepts not only used in specialized fields but also around us all the time if you just look for them.

Events like today’s Pi Day are good reminders of how fun math can be and how to keep on learning.

And, since any celebration includes some type of dessert, here is an easy recipe for making your own Pi pie on Pi Day. Its measurements use the value of Pi and it includes Greek yogurt for the Greek letter. Ok, that might be stretching it some but we’ve got to get in the spirit of these things and it sure does make a good no-bake cheesecake pie.

EASY As PI - PI-Day Cheesecake Pie


3.14 ounces of plain Greek yogurt (can be rounded to 3 ounces)

3.14 ounces of sugar

6.28 ounces cream cheese, softened (can be rounded to 6 ounces)

6.28 ounces of thawed whipped topping (can be rounded to 6 ounces)

3.14 ounces of sugar (can be rounded to 3 ounces)

Splash of vanilla


Mix cream cheese, yogurt, and sugar together until smooth. Add vanilla. Gently fold in whipped topping until well combined. Do not over-mix or the air will come out of the whipped topping and the pie will be too dense. Pour into pie crust shape (see below for recipe). Chill for 1 hour in refrigerator and serve. Top with remaining whipped topping if desired.

Make Your Own Graham Cracker Pie Crust


2 cups graham cracker crumbs

1/2 cup butter

1/3 cup brown sugar

1/2 teaspoon cinnamon


Preheat oven to 400 degrees

Using heavy duty aluminum foil, pinch out the PI Greek letter π to form at least 1 inch wide “legs” and 1 inch wide top bar. The lengths should be approximately four inches each. Spray well with nonstick cooking spray.

Combine all ingredients.

Press over bottom and up sides of foil form. Chill for half an hour, using crumpled aluminum foil around the form to support the shape until it sets. Bake at 400° for 10 minutes.

More Rational Pie

1 comment:

Unknown said...

A great read about Pi day. Thanks for sharing the recipe i will love to try this. keep posting.
northwestern business college chicago

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