Apostol, a professor at the California Institute of Technology, wrote in "Introduction ... relies on the synthetic geometry developed by Greek mathematicians like Euclid. In past cultures ...

A mathematical billiard is a mechanical system consisting of a billiard ball on a table of any form (which can be planar or even a multidimensional domain) but without billiard pockets. The ball moves ...

It is not strictly mathematical, but aims to provide intuitive and transparent ... Readership: This book is a lecture notes that provides an introduction to the basic ideas and concepts of quantum ...