Test if a number is fibonacci

Posted by VaioIsBorn on Stack Overflow See other posts from Stack Overflow or by VaioIsBorn
Published on 2010-03-12T12:30:54Z Indexed on 2010/03/12 12:37 UTC
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c++

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fibonacci

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testing

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math

I know how to make the list of the Fibonacci numbers, but i don't know how can i test if a given number belongs to the fibonacci list - one way that comes in mind is generate the list of fib. numbers up to that number and see if it belongs to the array, but there's got to be another, simpler and faster method.

Any ideas ?

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