void Add(
	ref T value0,
	ref T value1,
	ref T result
)

Sub Add ( _
	ByRef value0 As T, _
	ByRef value1 As T, _
	ByRef result As T _
)

void Add(
	T% value0, 
	T% value1, 
	T% result
)

For some types the add operation is not commutative. This is the case if value0 and value1 represent transformations. In this case this method returns a combined transformation where value0 is applied before value1.