"Steven Schveighoffer" <schvei...@yahoo.com> wrote in message news:op.v8l0jzrdeav7ka@localhost.localdomain... > > a) you usually want something on or off. If it's already in the desired > state, you can usually tell without looking at the switch. > b) It's far more mentally taxing to read/understand the symbols, remember > how they apply to circuits, then determine whether it's on or off, than it > is to simply start flipping switches until you get the desired result. >
How in the world does the presence of symbols on the switch prevent you from doing it that way?
