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February 10th, 2009, 12:15 PM   #1
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What is the summation formula for fibonacci series?

What is the summation formula for fibonacci series?
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February 10th, 2009, 01:54 PM   #2
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Re: What is the summation formula for fibonacci series?

I don't know what you mean. Possibly this?

F_n = F_{n-2} + F_{n-1}
= 2F_{n-2} + F_{n-3}
= 3F_{n-3} + 2F_{n-4}
= 5F_{n-4} + 3F_{n-5}
etc.
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