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November 23, 2019## 1, 1, 2, 3: It's Fibonacci Day!

Today's date, November 23, can be represented as 11/23, or 1, 1, 2, 3—the beginning of the Fibonacci sequence of numbers. Likewise, as the leaves on the Queen Victoria agave in today's image spiral out from the center, they also express the Fibonacci sequence. This unique sequence of numbers was introduced to Europe in 1202 by the Italian mathematician Leonardo of Pisa (posthumously named Fibonacci) in his revolutionary work, the 'Liber Abaci.' The book begins by describing the Hindu-Arabic numeral system or 'Modus Indorum’—0 1 2 3 4 5 6 7 8 9—and shows how its application could simplify trade and make calculations faster and easier (most of Europe at this time used Roman numerals).

In the third section of his book, Fibonacci goes on to describe various mathematical problems, including a thought experiment about increasing rabbit populations that results in the Fibonacci sequence. The sequence is determined by adding the previous two numbers together to establish the next number: 1, 1, 2, 3, 5, 8, 13, 21, 34, etc. Since then, mathematicians, scientists, and artists have been studying and applying the Fibonacci sequence and the Fibonacci numbers that make it up. While Fibonacci gets the credit for describing the number sequence, he wasn't the first to discover it. Research published in 1985 posits that ancient Indian mathematicians had been aware of and wrote about the sequence more than a thousand years before Fibonacci's work.## 當日報價

—Shakuntala Devi?Without mathematics, there's nothing you can do. Everything around you is mathematics. Everything around you is numbers.?## 繼續探索

## Fibonacci Number -- from Wolfram MathWorld

## Fibonacci Series in Java: How to display first n numbers ...

- Fibonacci series名詞
**Fibonacci numbers**(復數名詞)- a series of numbers in which each number (Fibonacci number) is the sum of the two preceding numbers. The simplest is the series 1, 1, 2, 3, 5, 8, etc.

更多信息Fibonacci series將 Fibonacci series 翻譯為找不到翻譯。Powered by Oxford Dictionaries · 必應在線翻譯 - People also ask
## Lucas number - Wikipedia

## Fibonacci number - Wikipedia

In mathematics, the Fibonacci numbers, commonly denoted Fn form a sequence, called the Fibonacci sequence, such that each number is the sum of the two preceding ones, starting from 0 and 1. That is,

and

for n > 1.

One has F2 = 1. In some books, and particularly in old ones, F0, the "0" is omitted, and the Fibonacci s…Wikipedia · CC-BY-SA 許可下的文字## Golden ratio - Wikipedia

## Fibonacci number Facts for Kids - Kiddle

## Generalizations of Fibonacci numbers - Wikipedia

## Fibonacci Series in Python | Program using Loops ...

## Fibonacci - Simple English Wikipedia, the free encyclopedia

## How to Calculate the Fibonacci Sequence (with Pictures ...