Example: Cumulative Principal Example
The amount of principal paid in the first year of a 30 year fixed rate mortgage is computed. The amount financed is $200,000 at an interest rate of 7.25% for 30 years.
using System;
using Imsl.Finance;
public class cumprincEx1
{
public static void Main(String[] args)
{
double rate = 0.0725 / 12;
int periods = 12 * 30;
double pv = 200000;
int start = 1;
int end = 12;
double total = Finance.Cumprinc(rate, periods, pv, start, end,
Finance.Period.AtEnd);
Console.Out.WriteLine("First year principal = " +
total.ToString("C"));
}
}
Output
First year principal = ($1,935.71)
Link to C# source.