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Mathematicians Of The Day
25th October
On this day in 1713, Gottfried Leibniz, in a letter to Johann Bernoulli, observed that an alternating series whose terms monotonically decrease to zero in absolute value is convergent.
Click on Ⓟ for a poster.
Born:
- 1811: Évariste Galois Ⓟ
- 1886: Lester R Ford Ⓟ
- 1926: James Eells Ⓟ
Died:
- 1647: Evangelista Torricelli Ⓟ
- 1733: Giovanni Saccheri
- 1884: Alberto Castigliano Ⓟ
- 1905: Otto Stolz Ⓟ
- 1914: Wilhelm Lexis Ⓟ
- 1933: Albert Wangerin Ⓟ
- 1970: Edward Collingwood Ⓟ
- 1996: Ennio De Giorgi Ⓟ
- 1997: Mina Rees Ⓟ
- 2002: René Thom Ⓟ
Quotation of the day
From René Thom
Algebra is rich in structure but weak in meaning.
