Element being set cannot be < 0. If the element is > current VV length, the VV length is increased. It is good practice to set the length ahead of time to the expected maximum value, as some VV processes rely on the current maximum length of the VV when you pass it in as an argument, and unexpected results may occur if the length is not what you expect it to be because of dynamic allocation at an earlier time.

public void SetReal(
	int i1,
	double d2
)

Public Sub SetReal ( 
	i1 As Integer,
	d2 As Double
)

public:
void SetReal(
	int i1, 
	double d2
)

member SetReal : 
        i1 : int * 
        d2 : float -> unit