COLORADO SPRINGS, Colo - It's not irrational to be excited about Pi Day. Tuesday marks National Pi Day.
The date, March 14, honors the digits 3.14, the ratio of a circle's circumference to its diameter. Commonly associated with the holiday, fresh baked goods. Here are some sweet deals across southern Colorado to celebrate the math number.
Boston Market: Free chicken pot pie with the purchase of an individual meal and drink.
Domino's: Choose two select items for $5.99 each or get a large three-topping carry out pizza for $7.99.
Village Inn: $2 discount on pies Monday and Tuesday at participating locations, while supplies last.
Whole Foods: Whole Foods is holding an all-day sale in light of Pi Day. Customers can save $3.14 on large pies and take-and-bake pizzas. The sale will only last while supplies last, and selections will vary from location to location.
Pizza Hut: Get a large two-topping pizza for just $7.99 during the month of March. Online orders only.
Non Food Deals:
Zazzle: Save 14 percent with coupon code 314159265358.
Half.com: "The Life of Pi" is 95 percent off.
ThinkGeek: Receive a free Pi Day T-shirt when you buy $31.41 worth of items. Use the coupon code PIOUS.
It wouldn't be Pi day without math. Here are some Pi facts to show off to your friends, courtesy of the YouTube channel MashUp Math and Live Science:
-The earliest reference to Pi was in Egypt, around the year 1650 BC.
-The Pi symbol was adopted by mathematician Leonard Euler in 1737.
-The spherical volume of the universe could be calculated with the first 39 digits of Pi.
-The number 1 is the most commonly occurring number in the first 100,000 decimal places of pi - it occurs 10,137 times.
-The time it would take to recite the 6.4 billion known digits of Pi without stopping is 133 years.
-Computers have calculated pi up to its 2,000,000,000,000,000th, or 2 quadrilliionth, digit.
-Favorite types of pie in the US, ranked in order, are apple, pumpkin, chocolate cream, cherry and pecan.