nsbasic math addition

' We convert textbox3 to String for better practice
Function Button1_onclick()
  ' convert to double precision for correct decimal value
  a = CDbl(TextBox1.value)
  ' convert to double precision for correct decimal value
  b = CDbl(TextBox2.value)
  ' Automatic typeno need double precision here
  c = a + b
  TextBox3.value=CStr(c)
End Function