Adds two BigInteger values and returns the result.
Assembly: System.Numerics (in System.Numerics.dll)
Languages that do not support operator overloading or custom operators can use the method to perform addition using BigInteger values.
The method is a useful substitute for the addition operator when instantiating a BigInteger variable by assigning it a sum that results from addition, as shown in the following example.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.