(Re:) (re;) Math.pow Question

From: Michael B. Williams (mbw4359_at_yahoo.com)
Date: 05/30/04 

Date: 29 May 2004 23:49:37 -0700

Michael B. Williams wrote:
>> Ooooopppps and sorry about the sniplet thanks again
>> N = 360, /* I had zero */

Sudsy <bitbucket44@hotmail.com> wrote:

>Why are you surprised at the infinity result? Using a value of 70 for
N
>provides a result of 2.3224057336909954E302, a HUGE number.
>Methinks your algorithm is incorrect as you appear to want to
calculate
>daily interest (based on some of the math and the variable names).
>I strongly suggest hitting the text books again or searching the 'net
>for the correct algorithm.

I think that you need to pull out your old calculator -.0174 of
course I rounded it up besides it's not my algorithm anyway I'm just
trying to understand why Math.pow is behaving in an abnormal way. This
is the code

import java.math.*;

public class post
{
    
    public static void main(String[] args)
    {
                  int
                term = 30,
                amount = 200000,
                principal = amount;
                
                
                double
                interest = .0575,
                monthly_payment = 0,
                J = 0,
                N = 0,
                ftemp;
                

                J = interest / (1200);

            N = 30*12;

        
                ftemp = ( 1-(1+J) );
                N = N * (-1);
                
                
                System.out.println( ftemp );
                
                // ftemp = -4.791666666670302E-5

                
                System.out.println( N );
                
                // N = -360.0
                
                 
                
                System.out.println( Math.pow( ftemp , N ) );
                
                
                // the output is Infinity I tried hardcoding it to -360

    }
}