Determining whether a number is a Fibonacci number

Question

I need to to write a Java code that checks whether the user inputed number is in the Fibonacci sequence.

I have no issue writing the Fibonacci sequence to output, b

Answer 1

You can do this in two ways , the recursive and mathematical. the recursive way start generating fibonacci sequence until you hit the number or pass it the mathematical way nicely described here ... http://www.physicsforums.com/showthread.php?t=252798

good luck.