Fibonacci Numbers
As far as we know, the Fibonacci series was first discovered by Leonardo of Pisa about 1200 C.E. Leonardo was trying to answer the question, “Quot paria coniculorum in uno anno ex uno pario germinatur?” or, in English, “How many pairs of rabbits are born in one year from one pair?” To solve his problem, Leonardo estimated that rabbits have a one-month gestation period and can first mate at the age of one month, so that each female rabbit has its first litter at two months. He made the simplifying assumption that each litter consisted of exactly one male and one female.
Leonardo's analysis begins with one pair of baby rabbits, a male and a female. At the end of the first month, these two have reached puberty and mate. There is ...
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