School Math Mugs
Description: Quirky math teacher with numbers as precious jewels! Quirky line art illustration of an eccentric professor wearing digits as crown, necklace, earrings – funny vintage style with turquoise accents. Perfect gift for mathematics lovers, math teachers, jewelry fans and back to school!
Description: Rainbow Pi The number π is a mathematical constant, approximately equal to 3.14159. It is defined in Euclidean geometry[a] as the ratio of a circle's circumference to its diameter, and also has various equivalent definitions. It appears in many formulas in all areas of mathematics and physics. The earliest known use of the Greek letter π to represent the ratio of a circle's circumference to its diameter was by the Welsh mathematician William Jones in 1706. It is also referred to as Archimedes's constant.