4min 30 sec @TEDEd clip - where do math symbols come from? By John David Walters

Text from youtube

"Maths is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subscripts ... it can look like an illegible jumble. Where did all of these symbols come from? John David Walters shares the origins of mathematical symbols, and illuminates why they’re still so important in the field today.

 Lesson by John David Walters, directed by Chris Bishop."