History of Mathematical Symbols

Published by patrick honner on

This is a great resource:  a brief history of many mathematical symbols.


Ever wonder where the symbol for pi comes from?  Or why we use ‘%’ for percent?  Or who first used infty to first represent infinity?

There’s all that, and much more!  Although, I would like to know more about the bar used to represent repeating decimals.

patrick honner

Math teacher in Brooklyn, New York


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