13th April

Mathematicians Of The Day

13th April

On this day in 1560, Cardan's son Giambatista was executed after being found guilty of poisoning his wife. This was a blow from which Cardan never recovered.

The postage stamp of one of today's mathematicians at THIS LINK was issued in 1979.

Click on Ⓟ for a poster.

Born:

953: al-Karaji Ⓟ
1728: Paolo Frisi Ⓟ
1813: Duncan Gregory Ⓟ
1823: Oscar Schlömilch Ⓟ
1850: Arthur Downing Ⓟ
1869: Isabel Maddison Ⓟ
1879: Francesco Severi Ⓟ
1909: Stan Ulam Ⓟ
1914: Manuel Sadosky Ⓟ

Died:

1728: Samuel Molyneux
1890: Andrew Hart Ⓟ
1906: Raphael Weldon Ⓟ
1941: Annie Jump Cannon Ⓟ
2004: David Fowler Ⓟ
2014: Emma Castelnuovo Ⓟ

Quotation of the day

From Stan Ulam

See Rota's comment about Ulam

View thirteen larger pictures