[math-fun] Fibonacci claims Arabic numbers are easier to use than Roman numbers

David Singmaster took some pictures of one of the 2 surviving complete 2nd edition 1228 manuscripts by Fibonacci.  None of the 1202 first editions have survived. Fibonacci sequence http://www.mathpuzzle.com/FibNosClose.jpg Arabic Numbers http://www.mathpuzzle.com/TPBottomDetailbig.jpg Ed Pegg Jr http://www.mathpuzzle.com/