The pi symbol represents an irrational number, that is, with infinite decimal numbers and without a repeated pattern. Pi is the result of the division between the length and the diameter of a circumference.

The number pi is known in its two-decimal version 3.14 and is present in many of the physical, chemical and biological constants and is therefore called the fundamental mathematical constant.

The pi symbol (π) is the sixteenth letter of the Greek alphabet and is used as a symbol of Pedagogy. In mathematics, the symbol pi represents the number 3.1415926535897932, with 16 first decimal places.

The number pi is present naturally in fractals, such as plant growth, and artificially, in the formulas needed for satellite tracking (GPS) and voice assistants that recognize voices as commands.

Since 1999, the House of Representatives of the United States of America decrees the **March 14 as National Pi Day** for all the contributions it has generated in science and technology.

## The first 100 decimals of the number Pi

3 , 1 4 1 5 9 2 6 5 3 5 8 9 7 9 3 2 3 8 4 6 2 6 4 3 3 8 3 2 7 9 5 0 2 8 8 4 1 9 7 1 6 9 3 9 9 3 7 5 1 0 5 8 2 0 9 7 4 9 4 4 5 9 2 3 0 7 8 1 6 4 0 6 2 8 6 2 0 8 9 9 8 6 2 8 0 3 4 8 2 5 3 4 2 1 1 7 0 6 7 9