Math lovers celebrate today (3/14) as Pi Day, in honor of the irrational number pi. Pi, or π, is defined as the ratio of the circumference of a circle to its diameter. Pi is an irrational number, ...

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its diameter and equals 3.14... Schools and museums often plan events to ...

Pi is an important mathematical constant since it is the ratio of a circle's circumference to its diameter. The pi (π) is used in many mathematical formulae across math and physics. For the past ...

KUSA – If you're a math nerd, March 14 is a pretty magical day. And this year, 03/14/15 is especially awesome. And while some use Pi Day as an excuse to eat pie (the food)/make puns, others use Pi Day ...

– Pi Day is also Albert Einstein’s birthday, along with the birthdays of Apollo 8 Commander Frank Borman, Astronomer Giovanni Schiaparelli, and last-man-on-the-moon Gene Cernan. – There is a pi ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Pi Day is celebrated every year on March 14—when the date can be ...

Math lovers celebrate today (3/14) as Pi Day, in honor of the irrational number pi. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Pi, or π, is ...