Seconded! Fredrik is a hero. Favorite line: "Euler's formula... Discovered aroun... | Hacker News

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peter_d_sherman on July 23, 2019 | parent | context | favorite | on: A Grimoire of Functions

Seconded! Fredrik is a hero.

Favorite line:

"Euler's formula... Discovered around 1740 by the Swiss Sorcerer Supreme, Leonhard Euler, this formula can transmute exponentials into trigonometric functions and vice versa. A magic formula indeed!"

Indeed! (And a mathematical IDENTITY... as are many others in this "Grimoire"...)

Great work, Fredrik!

jacobolus on July 23, 2019 [–]

> Discovered around 1740 by the Swiss Sorcerer Supreme

And earlier published in 1714 by the Englishman Roger Cotes.

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