ALBUFEIRA

Math lovers celebrate today (3/14) as Pi Day, in honor of the irrational number pi.

Pi is an irrational number, meaning it cannot be written as a simple fraction

Pi, or π, is defined as the ratio of the circumference of a circle to its diameter. Pi is an irrational number, meaning it cannot be written as a simple fraction. Instead, it can be expressed as an infinite, nonrepeating decimal (3.14159…) or approximated as the fraction 22/7.

(Tanya Lewis – livescience.com)