John Horton Conway
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John Horton Conway was an English mathematician. He was active in the theory of finite groups, knot theory, number theory, combinatorial game theory and coding theory. He also made contributions to ma
Conway in June 2005
Doomsday rule
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The Doomsday rule, Doomsday algorithm or Doomsday method is an algorithm of determination of the day of the week for a given date. It provides a perpetual calendar because the Gregorian calendar moves
John Horton Conway
…real value in each interval on the real line, so it has a Darboux property but is not continuous. For calculating the day of the week, he invented the Doomsday algorithm. The algorithm is simple enough for anyone with basic arithmetic ability to do the calculations mentally. Conway could usually give the correct answer…
John Conway, inventor of the Doomsday algorithm