Fibonacci numbers are a series of numbers such as 1,1,2,3,5,8,13,21,34,55,….
You can write a simple program, such as the one given below, in any language such as perl, python, ruby, javascript, php, java, haskell etc.
slowFib 0 = 1
slowFib 1 = 1
slowFib n = slowFib (n -2 ) + slowFib (n - 1)
This algorithm is extremely slow, [...]