Pi is the cornerstone of mathematics. It plays an essential role in geometry – essential for architecture, engineering and travel to space – as well as multiple other fields like physics, biology and music. But Pi remains fascinatingly mysterious and beautiful too: Dorina Mitrea of Baylor Mathematicians describes Pi as the cosmic nomad of mathematics which meanders across infinity yet remains sublimely beautiful – making Pi an intriguing, mysterious yet alluring number!
Pi is defined as the ratio between a circle’s circumference and diameter, and an infinite decimal point; its digits never repeat themselves and its decimal point remains unendingly.
Pi is an essential number for scientists in understanding how shapes like circles and spheres function as well as circular motions such as rotation and oscillation. Researchers also use it to find area or volume calculations on surfaces curved surfaces; and as part of its cultural impact; Pi was even featured prominently in movies like A Beautiful Mind as well as science-fiction books such as Contact where Carl Sagan proposed that there may be hidden messages hidden within its digits from our universe.
Pi is an inexhaustibly fascinating mathematical constant and its popularity has inspired various activities related to it, such as reciting its digits, pie-eating contests and National Pi Day on March 14 (3/14). Mathematicians have developed new algorithms that enable them to calculate ever-increasing decimal places for this irrational, transcendental, infinite mathematical constant.
Archimedes first documented pi in ancient Babylonia and Egypt; however, not until around 250 BC did Greek mathematician Archimedes devise a way of calculating it to its first few decimal places by inscribing and circumscribing polygons with up to 96 sides which allowed him to approximate pi’s value up to 39 decimal places.
Leonhard Euler of Switzerland popularized the name and symbol for this number, which originates in Greek meaning “periphery.” Today it is represented by decimal 3.14159 although any form can be written. Furthermore, its digits never repeat themselves or end.
Euler was one of the only mathematicians to truly embrace pi. He used it in elegant formulas and created the iconic symbol p (from Greek letter for periphery) as its representation. Euler also developed one of mathematics’ most celebrated equations e(ip)+1=0 that brings together five of mathematics’ most prominent constants such as e, i, p, 1 and 0.
Pi’s beauty lies in its transcendental quality; it defies definition as an ordinary wild number by existing outside the confines of what can be defined as simple ratios or rules. Pi is wild because it defies logic; it has the soul of an outlaw who lives at the edge of chaos while floating through infinity without ever coming to rest.