A Brooklyn artist is claiming a broad trademark in T-shirts, jackets, caps, and other apparel featuring the Greek letter, resulting in the mass, temporary removal of thousands of products from the ...

Math lovers: Get excited! Today is National Pi Day. That’s not pie as in dessert. But as in the math symbol — the Greek letter Pi. Keeping it simple, it’s 3.14 — like March … ...

Wednesday is National Pi Day! That’s not pie as in dessert. But as in the math symbol — the Greek letter Pi. Keeping it simple, it’s 3.14 — like March 14. But PiDay.org says people have ...

The Greek letter pi is the symbol used in mathematics to represent the ratio of the circumference of a circle to its diameter. Pi is approximately 3.14159, and can go on infinitely beyond its ...

1700s? That’s when a Welsh mathematician, William Jones, began using the Greek letter pi to illustrate the ratio. He didn’t choose pi because he was hungry.

"Pi is a decimal series that goes on forever with no repeating digits. We represent it with a Greek letter pi," explained Lambertson. "Pi's accessible to all of us." ...

On Friday, math enthusiasts celebrate pi, the infinite number representing the relationship between a circle's circumference and its diameter. Represented by the Greek letter pi, the number is ...