Tagged: philosophy

Rene Descarets 0

Rene Descarets

We use variables to represent unknown values in mathematical problems every day. Rene who lived during the 16th – 17th century came up with the idea to use the lower letters of the English alphabet as variables in equations (such as x, y, z) and the upper letters of the alphabet as constants (a, b, c). Refernece: http://en.wikipedia.org/wiki/Ren%C3%A9_Descartes