| Overload | Description | 
|---|---|
| Addition(AnnualInterest,AnnualInterest) | Add x and y. | 
| Addition(AnnualInterest,TimeSpan) | Add annualInterest and timeSpan and returns the result in an AnnualInterest value. | 
| Addition(TimeSpan,AnnualInterest) | Add timeSpan and annualInterest and returns the result in an AnnualInterest value. | 
| Addition(Nullable<AnnualInterest>,AnnualInterest) | Add x and y. If x is null, returns null. | 
| Addition(AnnualInterest,Nullable<AnnualInterest>) | Add x and y. If y is null, returns null. | 
