论文部分内容阅读
斐波那契是中世纪意大利数学家,他研究兔子的生殖规律时,假设每一对兔子出生两个月后就具有生殖能力,每对成年兔子每个月可以生一对兔子。那么由一对兔子开始,一年后可以繁殖成多少对兔子?由此得到下面的数列:1、1、2、3、5、8、13、21、34、55、89……有趣的是,斐波那契以及后来的许多数学家在研究植物的花瓣、叶子、花蕊的数目时都和这个数列有关。像南京的市花梅花是5片花瓣,李树也是5片花瓣,鸢尾花、百合花(看上去是6片,实际上是两套3片)是3片花瓣,许多翠雀属植物的花瓣是8片,万寿菊的花瓣有1 3片,紫菀属植物的花有21瓣,大多数雏菊有34、55、89片花瓣。这些数字的花瓣在植物界很常见,而其他数字的就相对很少。这些数字如果排列起来,就是3、5、8、13、21、34、55、89……
Fibonacci, a medieval Italian mathematician who studies the reproductive behavior of rabbits, assumes that each pair of rabbits has the ability to reproduce two months after birth, and each pair of adult rabbits can produce a pair of rabbits each month. So from a pair of rabbits, how many pairs of rabbits can one year multiply? This gives the following sequence: 1,1,2,3,5,8,13,21,34,55,89 ... Interestingly , Fibonacci, and many later mathematicians, relate to the number of petals, leaves, and stamens in a plant. Like the city of Nanjing flower plum is 5 petals, plum is also 5 petals, iris, lily (looks like 6, in fact, two sets of 3) is 3 petals, many delphinium petals Is 8, marigold petals have 13, purple flowers are 21, most daisies have 34,55,89 petals. Petals of these numbers are common in the plant kingdom, while other numbers are relatively rare. If these numbers are arranged, it is 3, 5, 8, 13, 21, 34, 55, 89 ...