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    Fibonacci

    Italian mathematician (c.1170–c.1240/50)

    Fibonacci was an Italian mathematician from the Republic of Pisa, considered to be "the most talented Western mathematician of the Middle Ages". The name he is commonly called, Fibonacci, was made up in 1838 by the Franco-Italian historian Guillaume Libri and is short for filius Bonacci. However, even earlier, in 1506, a notary of the Holy Roman Empire, Perizolo mentions Leonardo as "Lionardo Fibonacci". Fibonacci popularized the Indo–Arabic numeral system in the Western world primarily through his composition in 1202 of Liber Abaci and also introduced Europe to the sequence of Fibonacci numbers, which he used as an example in Liber Abaci. Wikipedia

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  2. en.wikipedia.org

    In mathematics, the Fibonacci sequence is a sequence in which each element is the sum of the two elements that precede it. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted F n .Many writers begin the sequence with 0 and 1, although some authors start it from 1 and 1 [1] [2] and some (as did Fibonacci) from 1 and 2.
  3. en.wikipedia.org

    Fibonacci was born around 1170 to Guglielmo, an Italian merchant and customs official. [3] Guglielmo directed a trading post in Bugia (Béjaïa), in modern-day Algeria. [16] Fibonacci travelled with him as a young boy, and it was in Bugia (Algeria) where he was educated that he learned about the Hindu-Arabic numeral system. [17] [7]Fibonacci travelled around the Mediterranean coast, meeting ...
  4. geeksforgeeks.org

    Dec 26, 2024Fibonacci Sequence is the sequence of the number that is generated by adding the last two numbers of the term when the first term and the second term of the sequence are, 0 and 1. Who invented the Fibonacci Series? Fibonacci sequence was first discovered by the famous Italian mathematician "Leonardo Fibonacci" in the early 13th century. But ...
  5. britannica.com

    Feb 10, 2025Fibonacci sequence, the sequence of numbers 1, 1, 2, 3, 5, 8, 13, 21, …, each of which, after the second, is the sum of the two previous numbers; that is, the nth Fibonacci number F n = F n − 1 + F n − 2.The sequence was noted by the medieval Italian mathematician Fibonacci (Leonardo Pisano) in his Liber abaci (1202; "Book of the Abacus"), which also popularized Hindu-Arabic numerals ...
    Author:The Editors of Encyclopaedia Britannica
  6. mathmonks.com

    Jun 10, 2024The Fibonacci Sequence has some important properties, which we will discuss below. Fibonacci Sequence and Golden Ratio. Two successive Fibonacci numbers give the value ${\phi =\dfrac{1+\sqrt{5}}{2}}$ or, 1.618…, which is known as the Golden Ratio, also known as phi (an irrational number). For the given spiral, the Golden ratio follows the ...
  7. britannica.com

    Fibonacci (born c. 1170, Pisa?—died after 1240) was a medieval Italian mathematician who wrote Liber abaci (1202; "Book of the Abacus"), the first European work on Indian and Arabian mathematics, which introduced Hindu-Arabic numerals to Europe. His name is mainly known because of the Fibonacci sequence.. Life. Little is known about Fibonacci's life beyond the few facts given in his ...
  8. The Fibonacci Sequence is closely related to the value of the Golden Ratio. We know that the Golden Ratio value is approximately equal to 1.618034. It is denoted by the symbol "φ". If we take the ratio of two successive Fibonacci numbers, the ratio is close to the Golden ratio. For example, 3 and 5 are the two successive Fibonacci numbers.
  9. historymath.com

    The Fibonacci sequence owes its name to Leonardo of Pisa, known as Fibonacci (c. 1170-1250), an Italian mathematician whose contributions significantly shaped European mathematics. Fibonacci introduced the sequence to Western audiences in his seminal work, Liber Abaci ("The Book of Calculation"), published in 1202. While the sequence is ...

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