Alexander Dewdney Professions : MathematicianBorn : August 5, 1941 Browse All Authors Quotes From Alexander Dewdney "The most powerful single idea in mathematics is the notion of a variable." Alexander Dewdney powerfuleducationmath Similar Authors Abram Samoilovitch Besicovitch mathematician Brahmagupta mathematician Augustus De Morgan mathematician Augustin-Louis Cauchy mathematician Atle Selberg mathematician Arthur Cayley mathematicianAll Authors