Mathematicians Of The Day
15th April
On this day in 1831 Gauss introduces the term "complex" for a + bi. Most of the 17th and 18th century writers spoke of a + bi as an imaginary quantity. Gauss saw the desirability of having different names for ai and a + bi, so he gave to the latter the Latin expression numeros integros complexos.
See THIS LINK.
On this day in 2013 Google released an Euler doodle.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1938.
See THIS LINK.
On this day in 2013 Google released an Euler doodle.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1938.
Click on Ⓟ for a poster.
Born:
- 1452: Leonardo da Vinci Ⓟ
- 1548: Pietro Cataldi
- 1707: Leonhard Euler Ⓟ
- 1809: Hermann Grassmann Ⓟ
- 1886: Aurel Angelescu Ⓟ
- 1921: MaurĂcio Peixoto Ⓟ
- 1923: Enrico Magenes Ⓟ
- 1928: Paul Butzer Ⓟ
- 1929: Brooke Benjamin Ⓟ
- 1932: John Lewis Ⓟ
- 1934: James Wiegold Ⓟ
Died:
- 1446: Filippo Brunelleschi Ⓟ
- 1704: Johann Hudde Ⓟ
- 1754: Jacopo Riccati Ⓟ
- 1878: James Booth Ⓟ
- 1934: George Moffat
- 1983: Vera Nikolaevna Faddeeva Ⓟ
- 1985: Lazar Matveevich Gluskin Ⓟ
- 1990: Karl Heinrich Weise Ⓟ
- 1997: Eugene Graham
- 1999: Floyd Burton Jones Ⓟ
- 2007: Leslie Woods Ⓟ
- 2018: George Oster Ⓟ
Quotation of the day
From Leonhard Euler
Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.