**Pi Day **is celebrated on

**March 14th** (3/14) around the world. Pi (Greek letter “

**π**”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159.Pi has been calculated to over one trillion digits beyond its decimal point. As an irrational and transcendental number, it will continue infinitely without repetition or pattern. While only a handful of digits are needed for typical calculations, Pi’s infinite nature makes it a fun challenge to memorize, and to computationally calculate more and more digits.

**(See all Pi Design Shirts Here) – (See all Pi Design Gift Merchandise Here)**

**Delicious T Shirt**

**I Ate Some Pie And It Was Delicious Tees**

**Pi Number Drawing Tees**

**I heart Pi Day – Pi Apparel Gift T Shirt**

**Spring Pi – Flowery Colorful Pi Day Gifts T-shirt**

**Cute Happy Pi Day – Pi Clothing Gift Tshirts**

**Pi Number Drawing Shirt**

**apple pi shirts**

**Pi Day Pirates – 3.14% of Sailors are PIrates! Tshirts**

**be rational! get real! t-shirt**

**Inspire Math Geek T-shirt**

**Pi fractal numbers tee shirt**

**Come To The Nerd Side We Have Pi Tshirt**

**At Pi Sign, Spiral Version Shirt**

**Pi rate Pirate Pi Day Shirts and Gifts**

**We have Pi Tee Shirts**

**Pi in the Sky Tee Shirts**

**Pi (π) Day Tee Shirts**

**Be Rational, Get Real! Tee Shirt**

**Awesome Pi Symbol T Shirts**

**Moustache you a question, Any more Pi T Shirts**

**mu-tant cow pi tee shirt**

**Pizza Volume Mathematical Formula = Pi*z*z*a Tee Shirts**

**Pi Day Chocolate Pi Shirt**

**Apple Pi, Apple Pie T Shirt**

**Pi Rate White Tshirts**

**Pi-Rate Shirt**

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**Vampire Math Geek T-shirt**

**Pi a la mode tshirts**

**Peace, Love, Pi Tee Shirt**

**T-Shirt, Chicken Pot Pi 2**

**Pi Number Design Tees**

**Cutie Pi Geek Girl T-shirt**

**Math Chick Layered Shirt**

**American Pi T Shirt**

**“PIE HOLE” shirt – choose style & color**

**Pi Day womens funny T Shirt**

**Pi Number Humor T-shirt**

**Absolutely EPIC Pi V1 T Shirts**

**Funny I heart Pi – 3.14 x more than u T-shirt**

**Happy Pi Day Tees**

**Pi rate t shirts**

**Funny Pi T-shirt**

**Pi Chick or Math Chick Shirts**

**Mathletic Department T-shirts**

**Property of Pi University T-shirt**

**Easy as Pie Tshirt**

**Mathlete T-shirt**

**Pi Symbol Irrational Behavior Ladie’s T shirt**

**Peace Love Pi T-shirt**

**3.14 = Pie Spelled Backwards Tees**

**Pi Stripes T Shirt**

**Pi Day 2015 Tee Shirts**

**Pi Math Pimp 3.14 Tees**

**Keep Calm and Eat Pi Tshirts**

**Keep Calm and Eat Pi Tee Shirt**

**I Heart (LoVe) Pi T Shirts**

**I love math Pi T-shirts**

**Keep calm it’s only Pi Tshirts**

**Pi red hearts tshirt**

**Pi devil tee shirts**

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**More Pi Gift Apparel, Products / Merchandise:**

Art & Posters, Aprons, Bags, Bumper Stickers, Business Cards, Buttons, Calendars, Hats, Invitations, iPhone, Keychains, Magnets, Mousepads, Mugs, Ornaments, Postage, Photo Prints, Postcards, Posters, Stickers, T-shirts & Shirts, Ties

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