Cos function
Cos( rad )
Returns the cosine of an angle.
The argument rad must be expressed in radians and must be a valid numeric expression. Cos by default returns a double unless a single or integer is specified as the return value.
Example
Sub Main()
Dim J As Double
Dim I As Single   ' Declare variables.
Dim K As Integer
For I =1 To 10   
   Msg = Msg & Cos(I) & ", "   ' Cos function call
   J=Cos(I)
   Print J
   K=Cos(I) 
   Print K
Next I
MsgBox Msg   ' Display results.
MsgBox Msg1
End Sub