# Find nth number in Fabonacci series

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package examples

object fabonacci extends App {

println("hello world")

def fabon(n: Int): Int = { // loop on n values // Initialize sum at 1 // Each time go to next value if it is larger // Sum must be odd as Fibonacci series is odd // If n is even, reset and return last value // If it is not an odd number, reset and return the first value // return nth Fibonacci value def loop(x: Int, Last: Int, NextToLast: Int): Int = { // x is xth number I want to compute // Last is to keep fabonacci of n-1 and next to last to keep fabonacci n-2 // if (n <= 2) return 1 // else if (x >= n) return Last // else { //

``````package examples

object fabonacci extends App {

println("hello world")

def fabon(n: Int): Int = {
def loop(x: Int, Last: Int, NextToLast: Int): Int = { // x is xth number I want to compute
// Last is to keep fabonaci of n-1 and next to last to keep fabonaci n-2
if (n <= 2) return 1
else if (x >= n) return Last
else {
println("value of:" +x +"value of Last:" +Last + "value of :" +NextToLast)
loop(x+1, Last + NextToLast, Last )
}
}
//if (n <= 2) 1
loop(2,1,1)
}
println(fabon(4))
}``````
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