/// <summary>
/// Gets the discount factor at maturity.
/// </summary>
/// <param name="startDiscountFactor">The start df.</param>
/// <param name="yearFraction">The year fraction.</param>
/// <param name="rate">the rate.</param>
/// <returns></returns>
public Decimal GetDFAtMaturity(decimal startDiscountFactor, decimal yearFraction, decimal rate)
{
return(RateAnalytics.GetDiscountFactorAtMaturity(startDiscountFactor, yearFraction, rate));
}