March 14 (UPI) --A 10-year-old British boy celebrated the run-up to the math-themed holiday Pi Day by breaking a world record for the most decimal places of pi recalled in one minute. Bristol student ...
Pi, a mathematical constant denoted by the Greek letter π, is the ratio of a circle's circumference C to its diameter d: π = C/d. The circumference of a circle is, in turn, equal to 2πr, where r is ...