Leonardo fibonacci biography wikipedia
Fibonacci - Simple English Wikipedia, the free encyclopedia!
Liber Abaci
Mathematics book written in 1202 by Fibonacci
The Liber Abaci or Liber Abbaci[1] (Latin for "The Book of Calculation") was a 1202 Latin work on arithmetic by Leonardo of Pisa, posthumously known as Fibonacci.
It is primarily famous for introducing both base-10 positional notation and the symbols known as Arabic numerals in Europe.
Leonardo fibonacci biography wikipedia
Premise
Liber Abaci was among the first Western books to describe the Hindu–Arabic numeral system and to use symbols resembling modern "Arabic numerals". By addressing the applications of both commercial tradesmen and mathematicians, it promoted the superiority of the system and the use of these glyphs.[2]
Although the book's title is sometimes translated as "The Book of the Abacus", Sigler (2002) notes that it is an error to read this as referring to the abacus as a calculating device.
Rather, the word "abacus" was used at the time to refer to calculation in any form; the spelling "abbacus" with two "b