## Mathematicians Of The Day

### 5th December

On this day in 1735, Leonard Euler presented a paper to the St Petersburg Academy giving his solution to the

See THIS LINK.

*Basel problem*: $\zeta(2) = \sum \large\frac 1 {n^{2}} \normalsize = \large\frac {\pi^2}{6}$.See THIS LINK.

Click on Ⓟ for a poster.

##### Born:

- 1788: Griffith Davies Ⓟ
- 1863: Paul Painlevé Ⓟ
- 1868: Arnold Sommerfeld Ⓟ
- 1873: Richard Fuchs Ⓟ
- 1878: Haroutune Dadourian Ⓟ
- 1895: Elbert Cox Ⓟ
- 1901: Werner Heisenberg Ⓟ
- 1904: Karl Maruhn Ⓟ
- 1909: Mark Aronovich Naimark Ⓟ
- 1937: Johannes Boersma

##### Died:

- 1708: Takakazu Seki Ⓟ
- 1770: James Stirling
- 1859: Louis Poinsot Ⓟ
- 1930: Alfred Barnard Basset Ⓟ
- 1959: Mary Winston Newson Ⓟ
- 1990: Ott-Heinrich Keller Ⓟ
- 1999: Nathan Jacobson Ⓟ
- 2005: Ambrose Rogers Ⓟ
- 2021: Jacques Tits Ⓟ

#### Quotation of the day

##### From Louis Poinsot

Everyone makes for himself a clear idea of the motion of apoint, that is to say, of the motion of a corpuscle which one supposes to be infinitely small, and which one reduces by thought in some way to a mathematical point.