Excerpt from Opuscoli di Leonardo Pisano Il recto ed il verso di ciascuna carta numerata del sopraccitato Codice Ambrosiano E. 75, Parte Su periore, salvo il recto della prima, trovansi indicati nei margini laterali esterni della presente edizione nel modo fol. 4 verso, [al. 2 recto, ec. Una linea verticale separa nel testo dell'edizione medesima l'ultima parola di ciascuna di tali pagi ne, dalla prima parola di quella chela segue im mediatamente. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Leonardo Bonacci (c. 1170 – c. 1250)—known as Fibonacci, and also Leonardo of Pisa, Leonardo Pisano,Leonardo Pisano Bigollo, Leonardo Fibonacci—was an Italian mathematician, considered as "the most talented Western mathematician of the Middle Ages." Fibonacci introduced to Europe the Hindu–Arabic numeral system primarily through his composition in 1202 of Liber Abaci (Book of Calculation). He also introduced to Europe the sequence of Fibonacci numbers (discovered earlier in India but not previously known in Europe), which he used as an example in Liber Abaci.