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Mathematicians Of The Day
31st August
On this day in 1682, Michael Rolle published an elegant solution to a difficult problem publicly posed by Ozanam:
Find four integers the difference of any two of which is a perfect square as well as the sum of the first three will be a perfect square.
This brought him public recognition.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1950.
Find four integers the difference of any two of which is a perfect square as well as the sum of the first three will be a perfect square.
This brought him public recognition.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1950.
Click on Ⓟ for a poster.
Born:
- 1821: Hermann von Helmholtz Ⓟ
- 1831: Georg Sidler Ⓟ
- 1848: Emil Weyr Ⓟ
- 1864: Robert Hardie
- 1880: Heinrich Tietze Ⓟ
- 1885: Herbert Turnbull Ⓟ
Died:
- 1721: John Keill
- 1811: Louis-Antoine de Bougainville Ⓟ
- 1918: Andre-Louis Cholesky Ⓟ
- 1940: John Pullar
- 1945: Stefan Banach Ⓟ
- 1946: Leslie Cunningham
- 1975: Evgeny Remez Ⓟ
- 1980: Rafael Laguardia Ⓟ
- 2010: Nigel Kalton Ⓟ
Quotation of the day
From Heinrich Tietze
The story was told that the young Dirichlet had as a constant companion all his travels, like a devout man with his prayer book, an old, worn copy of the Disquisitiones Arithmeticae of Gauss.
