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Happy birthday, Euler, "master of us all"! 🎂 🥇 🎓

- You know the notation "f(x)" for functions? – It was introduced by Euler.

- You know the names "sin(x)" etc for trigonometric functions? – They were introduced by Euler.

- You know the notation "Σ" for summation? – It was introduced by Euler.

- You know the "F = m a" formula? – It was written in this way for the first time by Euler <https://scholarlycommons.pacific.edu/euler-works/177>.

- You know *Euler's* formula "exp(ix) = cos(x) + i sin(x)"?

- You know angular momentum and its balance law? Its necessity was definitively demonstrated by Euler <https://doi.org/10.1007/978-3-642-86647-0_5>.

- You know the notion of internal pressure (precursor of "stress")? - Introduced by Euler <https://scholarlycommons.pacific.edu/euler-works/225>.

- Not to count his many discoveries in mathematics and works in physics.

- Wrote so many papers that the Prussian Academy kept on publishing them until 8 years after his death.

> "Read Euler, read Euler, he is the master of us all" (Laplace)

#science #physics #onthisday #mathematics