from Walker & Co (July 3, 2012)
9780802779083 |
details & prices | 192 pages | List price $16.00
About: Leonardo of Pisa—better known today as Fibonacci—was the first Westerner to recognize the power of the Hindu-Arabic number system (featuring the numerals 0 through 9), which offered a much simpler method of calculation than the finger reckoning and cumbersome Roman numerals used at the time.