/// <summary>Gets a interest rate with respect to a specific compounding convention.
/// </summary>
/// <param name="interestRate">The interest rate.</param>
/// <param name="sourceCompounding">The compounding convention of the input <paramref name="interestRate"/>.</param>
/// <param name="destinationCompounding">The compounding convention to convert to.</param>
/// <param name="interestPeriodLength">The length of the interest period.</param>
/// <returns>The interest rate in its <paramref name="destinationCompounding"/> compounding convention.</returns>
public static double GetConvertedInterestRate(double interestRate, SimpleInterestCompounding sourceCompounding, PeriodicInterestCompounding destinationCompounding, double interestPeriodLength)
{
if (destinationCompounding == null)
{
throw new ArgumentNullException("destinationCompounding");
}
return((Math.Exp(Math.Log(1.0 + interestRate * interestPeriodLength) / (interestPeriodLength * destinationCompounding.PaymentsPerYear)) - 1.0) * destinationCompounding.PaymentsPerYear);
}
/// <summary>Gets a interest rate with respect to a specific compounding convention.
/// </summary>
/// <param name="interestRate">The interest rate.</param>
/// <param name="sourceCompounding">The compounding convention of the input <paramref name="interestRate"/>.</param>
/// <param name="destinationCompounding">The compounding convention to convert to.</param>
/// <param name="interestPeriodLength">The length of the interest period.</param>
/// <returns>The interest rate in its <paramref name="destinationCompounding"/> compounding convention.</returns>
public static double GetConvertedInterestRate(double interestRate, SimpleInterestCompounding sourceCompounding, ContinuouslyInterestCompounding destinationCompounding, double interestPeriodLength)
{
return(Math.Log(1.0 + interestRate * interestPeriodLength) / interestPeriodLength);
}
/// <summary>Gets a interest rate with respect to a specific compounding convention.
/// </summary>
/// <param name="interestRate">The interest rate.</param>
/// <param name="sourceCompounding">The compounding convention of the input <paramref name="interestRate"/>.</param>
/// <param name="destinationCompounding">The compounding convention to convert to.</param>
/// <param name="interestPeriodLength">The length of the interest period.</param>
/// <returns>The interest rate in its <paramref name="destinationCompounding"/> compounding convention.</returns>
public static double GetConvertedInterestRate(double interestRate, PeriodicInterestCompounding sourceCompounding, SimpleInterestCompounding destinationCompounding, double interestPeriodLength)
{
if (sourceCompounding == null)
{
throw new ArgumentNullException("sourceCompounding");
}
return((Math.Pow(1.0 + interestRate / sourceCompounding.PaymentsPerYear, interestPeriodLength * sourceCompounding.PaymentsPerYear) - 1.0) / interestPeriodLength);
}