## Mathematicians Of The Day

### 28th April

On this day in 1693, Leibniz wrote to de L'Hôpital, announcing his discovery of determinants fifty years before Cramer, who was the real driving force in the development of determinants. Leibniz's work had little or no influence because it was not published until 1850 in his

On this day in 2016 Google released an Ayrton doodle.

*Mathematische Schriften*.On this day in 2016 Google released an Ayrton doodle.

Click on Ⓟ for a poster.

##### Born:

- 1765: Sylvestre Lacroix Ⓟ
- 1773: Robert Woodhouse
- 1831: P G Tait Ⓟ
- 1838: Jenő Hunyadi Ⓟ
- 1854: Hertha Marks Ayrton Ⓟ
- 1868: Georgy Voronoy Ⓟ
- 1882: Theodor Angheluță Ⓟ
- 1906: Kurt Gödel Ⓟ
- 1906: Richard Rado Ⓟ
- 1921: Iacopo Barsotti Ⓟ
- 1923: Fritz Ursell Ⓟ
- 1925: Gordon Preston Ⓟ
- 1937: David Fowler Ⓟ

##### Died:

- 1843: William Wallace Ⓟ
- 1903: J Willard Gibbs Ⓟ
- 1975: Hans Heilbronn Ⓟ
- 1986: R H Bing Ⓟ
- 2006: Fred Wright
- 2019: Maurício Peixoto Ⓟ
- 2020: Robert May Ⓟ

#### Quotation of the day

##### From J Willard Gibbs

One of the principal objects of research in my department of knowledge is to find the point of view from which the subject appears in the greatest simplicity.