By Paul Kandarian, Globe Correspondent
Maybe itís fitting in the land of Boston big brains: The Charles Hotel in the heart of Harvard Square, is offering a Pi discount on March 14 Ė National Pi Day, which pays homage to π, the mathematical symbol used to represent a constant, the ratio of the circumference of a circle to its diameter, which is approximately 3.14159. The Charles is moving the decimal point on March 14 giving guests a 31.4-percent discount. To get it, you have to book on that day but the rate is good for stays from March 19 to April 3. The rate applies to suites as well. Visit www.charleshotel.com or call 800-882-1818 and use code PI2013.
According to the Pi Day website, Pi has been calculated to more than one trillion digits beyond its decimal point. As an irrational and transcendental number, it will continue infinitely without repetition or pattern. If youíre keeping count, that is, and being so close to Harvardís big brains, someone surely must be.