There is lots of information about the Fibonacci Sequence on wikipedia and on wolfram. A lot more than you may need. Anyway it is a good thing to learn how to use these resources to find (quickly if possible) what you need. Write Fib sequence formula to infinite In math, it’s given in a recursive … Read more
In fibonacci sequence each item is the sum of the previous two. So, you wrote a recursive algorithm. So, fibonacci(5) = fibonacci(4) + fibonacci(3) fibonacci(3) = fibonacci(2) + fibonacci(1) fibonacci(4) = fibonacci(3) + fibonacci(2) fibonacci(2) = fibonacci(1) + fibonacci(0) Now you already know fibonacci(1)==1 and fibonacci(0) == 0. So, you can subsequently calculate the other … Read more
You model the time function to calculate Fib(n) as sum of time to calculate Fib(n-1) plus the time to calculate Fib(n-2) plus the time to add them together (O(1)). This is assuming that repeated evaluations of the same Fib(n) take the same time – i.e. no memoization is used. T(n<=1) = O(1) T(n) = T(n-1) … Read more