Happy National Pi Day.

The third month and the 14th day of the year is the day to celebrate the mathematical constant π. Also known as pi, the first three and most recognized digits are 3.14. National Pi Day is celebrated by pi enthusiasts and pie lovers alike.

What is pi?

Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159. It is a never-ending number, patternless, and without repetition.Pi has been calculated to over one trillion digits beyond its decimal point.

How do you observe the day?

Well, there is pie to eat; there is pizza (pie) as well. Perhaps watch the movie, “The Life of Pi” — all ideas provided by the National Day Calendar.