(5) Fibonacci sequenceNov 31, 2012

The 10 digit code for the safe appeared in the movie titled, 'DaVinci code' was 1123581325. They are first eight Fibonacci numbers in sequence. The Fibonacci numbers are named after Fibonacci, an Italian mathematician of the 13th century, who solved the problem of how many pairs there will be in one year if a newly born pair of rabbits continues to produce one new pair every month from the second month on. Each subsequent number in the Fibonacci sequence is the sum of the previous two numbers. The Fibonacci sequence is associated with the nature or the growth of animals and plants. If you look at rabbit breeding chart upside down, it looks like branching from a single tree. In addition, the Fibonacci numbers are also found in the family tree of honeybees, in the arrangement of pinecone and in the number of cells in each cycle of cell division. The ratio between any two successive Fibonacci numbers converges to the Golden Ratio φ=1.618...
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