13th April

Mathematicians who were born or died on 13th April

Mathematicians born on this day:

953 : al-Karaji
1728 : Paolo Frisi
1813 : Duncan Gregory
1823 : Oscar Schlömilch
1869 : Isabel Maddison
1879 : Francesco Severi
1909 : Stan Ulam

Mathematicians who died on this day:

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

Posters available   (Click on a link below)

Stan Ulam Raphael Weldon Duncan Gregory

A quotation for today

Stan Ulam (1909 - 1984)

Knowing what is big and what is small is more important than being able to solve partial differential equations.

Another quotation by one of today's mathematicians

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School of Mathematics and Statistics
University of St Andrews, Scotland