fib Library

The `fib` library provides tools for working with Fibonacci numbers, which are a sequence where each number is the sum of the two preceding ones. It allows you to easily generate Fibonacci sequences, calculate specific Fibonacci numbers, and analyze their properties. This library can be useful in mathematical, algorithmic, or programming contexts where Fibonacci sequences appear, such as in data structures, analysis of recursive algorithms, or modeling natural phenomena. Essentially, `fib` simplifies accessing and working with Fibonacci numbers to make these tasks more straightforward and efficient.