Please inform me of your comments/suggestions or if you have any better way to do it. Question 2: The first 4 numbers in the Fibonacci sequence are given as 1,1,2,3. formula for 364 surface area of 324, 326 volume of 318, 320 Difference Of. The 7th term of the Fibonacci sequence is 8. ReturnGetNthFibonacci_Rec(n - 1) + GetNthFibonacci_Rec(n - 2) With the use of the Fibonacci Sequence formula, we can easily calculate the 7th term of the Fibonacci sequence which is the sum of the 5th and 6th terms. public static int GetNthFibonacci_Rec(int n) We need a number less than 1 to get the nth Fibonacci number.įor example, if we want the 8th Fibonacci number, then we need 8-1 (in other words, 7) as an input (we can also create a -through method alternatively). In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. We can also look for a recursive version of that. public static int GetNthFibonacci_Ite(int n) Here we are using an integer array to keep the Fibonacci numbers until n and returning the nth Fibonacci number. We will first have a look at an iterative approach. We just need to the value with the right index. Remember, u(n2) means the term before the previous term in calculator lingo. The recursive formula for the Fibonacci sequence is: a n a n1 + a n2. ![]() We also need to increment the counter in each recursion call to compare it with the length and continue the loop until it exceeds the length parameter.Ĭalculating the nth Fibonacci number is not difficult. Want to try something more difficult The Fibonacci sequence is one of the most famous sequences in mathematics: 1, 1, 2, 3, 5, 8. public static voidFibonacci_Iterative(int len) The Fibonacci sequence needs two numbers to start: kind of a bummer However, the natural choice for them is F 0 0 F00 F 0 0 and F 1 1 F11 F 1 1.Knowing this, we can proceed with the computation of the following Fibonacci numbers. Please note that we are starting the series from 0 (instead of 1). Let’s first try the iterative approach that is simple and prints all the Fibonacci series by ing the length. This is one of the most asked questions in interviews, calculating and printing the Fibonacci series.
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