Tags » G H Hardy

Taxi cab numbers

In mathematics, the nth taxicab number, typically denoted Ta(n) or Taxicab(n), is defined as the smallest number that can be expressed as a sum of two positive  367 more words


Real v recreational mathematics

A footnote to my report on Persi Diaconis’ lecture on Martin Gardner.

Persi challenged us to consider the question: Is there a sharp division between “real” mathematics and “recreational” mathematics, and if so, where does it come? 423 more words