MacTutor
Mathematicians Of The Day
20th April
On this day in 1543, Copernicus's work De revolutionibus orbium coelestium was published when Rheticus autographed a presentation copy of the completed work. Copernicus died a month later.
On this day in 2009 Google released a Zu Chongzhi doodle.
A (personally designed) stamp of one of today's mathematicians is at THIS LINK.
On this day in 2009 Google released a Zu Chongzhi doodle.
A (personally designed) stamp of one of today's mathematicians is at THIS LINK.
Click on Ⓟ for a poster.
Born:
- 1644: Heinrich Meissner Ⓟ
- 1814: Fernando Pio Rosellini
- 1839: Francesco Siacci Ⓟ
- 1865: David Tweedie
- 1882: André Sainte-Laguë Ⓟ
- 1898: Edwin Olds
- 1910: Ernst Mohr Ⓟ
- 1940: George Oster Ⓟ
Died:
- 1344: Levi ben Gerson Ⓟ
- 1932: Giuseppe Peano Ⓟ
- 1942: Ludwig Berwald Ⓟ
- 1957: Konrad Knopp Ⓟ
- 1992: Harry Reuter Ⓟ
- 1994: Naum Il'ich Feldman Ⓟ
- 2001: David Gilbarg Ⓟ
- 2006: Kathleen McNulty Antonelli Ⓟ
- 2006: Paul Cohn Ⓟ
Quotation of the day
From Giuseppe Peano
Questions that pertain to the foundations of mathematics, although treated by many in recent times, still lack a satisfactory solution. Ambiguity of language is philosophy's main source of problems. That is why it is of the utmost importance to examine attentively the very words we use.
