Fibonacci Number

Output: Press calculate

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Formula:F(n) = F(n - 1) + F(n - 2), with F(0) = 0 and F(1) = 1.

Introduction to Fibonacci Number Calculator

The Fibonacci sequence is a series of numbers where each number after the first two is the sum of the two preceding ones. This calculator computes the n-th Fibonacci number given a non-negative integer n.

Parameter usage:


Data validation

The parameter n should be a non-negative integer.


The calculator is used to find the Fibonacci number at a specific position in the sequence.

Tags: Mathematics, Fibonacci, Sequence