Classrooms everywhere fete a most mathematical holiday
                                
                                
                                    (Newser) -
                                    Math lovers, rejoice, for today is Pi Day, celebrated in classrooms around the country—preferably at 1:59, which, on 3/14, nearly matches 3.14159, the famed irrational number’s first six digits. “What’s fun about pi is that everyone knows the number,” a math professor tells...