This second edition of Alexander Soifer’s How Does One Cut a Triangle? demonstrates how different areas of mathematics can be juxtaposed in the solution of a given problem. The author employs geometry, algebra, trigonometry, linear algebra, and rings to develop a miniature model of mathematical research.
I was once born in Moscow. I was born free in a country that did not tolerate free men. And so I left as a refugee, and earned my freedom in the US of A. Freedom is easy to obtain: just allow it to yourself. However, in order to keep it, one must exercise it, daily.