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300tube TED-Ed   30 October, 2017
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download youtube mp4 : Where do math symbols come from? - John David Walters

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Math 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.

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