On Last Word this week: Benoit Mandelbrot, the unconventional mathematician who developed fractals - a way of bringing order to descriptions of everything from the universe to a cauliflower. Also the Hungarian voice teacher Vera Rozsa who worked with many of the world's greatest opera singers. Bob Guccione the flamboyant publisher of Penthouse magazine, who made and lost a fortune in the pornography industry. And Samuel Burke, one of the few Indians to rise to the top of the Indian Civil Service under British rule, who went on to be an ambassador for Pakistan and a respected historian. Producer: Neil George.