Triangular Numbers - from Pythagoras to the Twelve Days of Christmas
This lecture is part of a series of public lectures organised by Computing Science and Mathematics, University of Stirling.
The numbers 1, 3, 6, 10, 15 etc are called triangular numbers. Can you see why? They have generated much interest among mathematicians since the days of the Ancient Greeks, and we shall follow the progress and development of this early knowledge across Europe, to the Irish monk Dicuil in the 9th century and the German mathematician Carl Friedrich Gauss in the late 18th century. Triangular numbers crop up in many simple problems and we shall look at a few of these. We are sure you can see their relevance to the 12 days of Christmas! And if we can have triangular and square numbers, why not pentagonal numbers as well?!
All are welcome to attend this free event, there is no need to book a place.
For further details about this lecture or others in the series, please visit the 'A random walk through Mathematics and Computing Science' website.