JAVA RECURSION Add all 3 recursive recursive methods from th

JAVA \"RECURSION\"

Add all 3 recursive recursive methods from this presentation to your previous Recursion lab Write a recursive method that computes the value of ln(N!) What is a good name for your method?

Solution

// Test.java

import java.util.Scanner;
class Test
{
  
public static double ln_n_factorial(int n)
{
    if(n==1)
return 0;
return ln_n_factorial(n-1) + Math.log(n);
}
public static void main(String args[]){
Scanner sc=new Scanner(System.in);

System.out.print(\"Enter n: \");
int n = sc.nextInt();

System.out.println(\"ln(\"+n+\"!) = \" + ln_n_factorial(n));

sc.close();
}
}

/*
output:

Enter n: 4
ln(4!) = 3.1780538303479453

Enter n: 3
ln(3!) = 1.791759469228055

*/