The ability to round a number to a number of decimal places or to a number of significant figures means that answers can be written to an agreed degree of accuracy. Watch the video to learn how ...

Happy Pi Day, the annual celebration of this incredible, mysterious, and irrational mathematical constant. Okay, so Pi — most commonly written as the Greek symbol π — is an essential mathematical ...

March 14, National Pi Day, honors 3.14 (π) the ratio of the circumference of a circle. Whether you're challenging yourself to find how many decimal placements are actually in Pi (π) or you're eating ...

Mar. 14—The late Larry Shaw didn't necessarily look like a physicist. Not with that mane of Viking-red locks unfurling past his shoulders like that. Not with that Allen Ginsberg beard and goofy, ...

CHICAGO (WLS) -- March 14th is Pi Day: 3.14. While when most hear "pi" they think of pie or pizza, the day is truly a celebration of mathematics. Pi is the ratio of a circle's circumference to its ...