Monthly Archives: October 2011


John McCarthy, the mind behind Lisp, died yesterday at age 84. The photographs below are from one of his web sites at Stanford. Many of his papers are available through a different web page. (I don’t know how long either … Continue reading

Posted in computing | 5 Comments

The n-ball game

The area enclosed by a circle is πr2. The volume inside a sphere is 4∕3πr3. These are formulas I learned too early in life. Having committed them to memory as a schoolboy, I ceased to ask questions about their origin … Continue reading

Posted in featured, mathematics | 13 Comments