0 March 14, 2021 12:30 by Matthew Bird Adam Goriparthi Pi-sces month, March 14 th (3/14, in the US date format) marks another Pi Day—named for the first 3 digits of the number (sadly not in the British calendar format). Pi is something non-mathematicians love to use to feign some mathematical understanding, but what is it? Why should we care about a number? A mathematical constant that is familiar both within and outside the scientific community, Pi refers to the ratio of the circumference (length around) to the diameter (length through) of a circle. In mathematical terms: Pi = c/d The resultant number is endless but is normally approximated to be 3.14. No matter the size of a circle, the ratio will always result in this number. Consequently, this number can be used to understand circles and spheres. However, it is not quite