13th December

## Mathematicians who were born or died on 13th December

 Mathematicians born on this day: 1724 : Aepinus 1887 : Pólya 1910 : Coulson 1921 : Gale Mathematicians who died on this day: 1048 : al-Biruni 1557 : Tartaglia 1603 : Viète 1870 : Chauvenet 1921 : Max Noether 1950 : Wald 1997 : Oppenheim

Posters available   (Click on a link below)

A quotation for today

Niccolo Fontana Tartaglia (1500 - 1557)

[The poem in which he revealed the secret of solving the cubic to Cardan]

When the cube and the things together
Are equal to some discrete number, *
Find two other numbers differing in this one.
Then you will keep this as a habit
That their product shall always be equal
Exactly to the cube of a third of the things. **
The remainder then as a general rule
Of their cube roots subtracted
Will be equal to your principal thing. ***

*   [Solve x3 + cx = d]
**  [Find u, v such that u - v = d and uv = (c/3)3 ]
*** [Then x = 3u - 3v ]

Another quotation by one of today's mathematicians

 JOC/EFR May 2017 The URL of this page is: School of Mathematics and Statistics University of St Andrews, Scotland http://www-history.mcs.st-andrews.ac.uk/Day_files/Day1213.html