Find nth Fibonacci number



    The code in this package example defines a learning user function called fabonaccii(). This function takes an integer input argument, n, and returns an integer value for the function call. The fabonaccii() function first defines a variable called loop(), which will be used to hold a sequence of integers. The function loops through the input argument, x, counting from 1 up to but not including n. If x is greater than n, then the function returns the value of Last, which is the value of x + 1. If x is equal to n, then the function returns the value of NextLast, which is the value of x + Last. Finally, the function assigns the result of the loop() function to the variable, fabonaccii(). The value of fabonaccii() will be the sum of the values of 1, 2, and 3.

    package example
    object learning extends App {
      println(s"hello world")
      def fabonaccii(n:Int): Int = {
      def loop(x: Int, Last: Int, NextLast: Int): Int = {
        if(x >= n ) return Last
        else {
        // println(s" $x - $Last- $NextLast")
        return loop(x+1, Last + NextLast, Last)
    fabonaccii(n) =
    1 1 2 3 5
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