## Mathematicians Of The Day

### 28th January

On this day in 1699, Gottfried von Leibniz became the first elected foreign member of the French Academy. Christiaan Huygens had been a member from the beginning.

Click on Ⓟ for a poster.

##### Born:

- 1540: Ludolph Van Ceulen Ⓟ
- 1608: Giovanni Alfonso Borelli Ⓟ
- 1611: Johannes Hevelius Ⓟ
- 1622: Adrien Auzout Ⓟ
- 1701: Charles-Marie de La Condamine Ⓟ
- 1851: Gomes Teixeira Ⓟ
- 1855: Karl Rohn Ⓟ
- 1888: Louis Mordell Ⓟ
- 1892: Carlo Bonferroni Ⓟ
- 1911: Robert Schatten
- 1922: Jan Kalicki
- 1924: Wilhelm Klingenberg Ⓟ

##### Died:

- 1687: Johannes Hevelius Ⓟ
- 1688: Ferdinand Verbiest Ⓟ
- 1864: Émile Clapeyron Ⓟ
- 1889: Joseph-Émile Barbier
- 1910: Alfredo Capelli Ⓟ
- 1935: Gustav von Escherich Ⓟ
- 1946: Dmitrii Matveevich Sintsov Ⓟ
- 1954: Ernest Esclangon Ⓟ
- 1985: Leopold Pars Ⓟ
- 1988: Klaus Fuchs Ⓟ
- 2009: William Moser Ⓟ
- 2011: Alison Falconer Ⓟ
- 2012: Horst Tietz Ⓟ
- 2018: Sunday Iyahen Ⓟ

#### Quotation of the day

##### From Louis Mordell

All I remember about the examination is that there was a question on Sturm's theorem about equations, which I could not do then and cannot do now.

[said at age 80]