菊石亚纲壳体的横截面
菊石亚纲壳体的横截面 (© Marianna Armata/Getty Images)
简单到1,1,2,3…(As easy as 1, 1, 2, 3…)
13世纪的意大利数学天才斐波那契是第一个通过把每个数字加在前面的数字上来勾勒出一个数字序列的人:1,1,2,3,5,8,13,等等。事实上,印度教学者在斐波那契之前几个世纪就已经描述了这个序列,他们可能也不是第一个发现这个序列的人。但无论如何,每年11月23日,也就是11月23日,我们都会庆祝被称为斐波那契数列的无限数列。
原文:
It's a bit of fib that Fibonacci, the 13th-century Italian math whiz, was the first to sketch out a number sequence by adding each number to the preceding number: 1, 1, 2, 3, 5, 8, 13, and so on forever. In fact, Hindu scholars described the sequence centuries before Fibonacci, and they probably weren't the first to figure it out either. But in any case, each November 23 – that is 11/23 – we celebrate the infinite series known as the Fibonacci sequence.
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