Stationary point of a function is a point where the derivative of a function is equal to zero and can be a minimum, maximum, or a point of inflection
stationary hands ten times over the entire range of the calculator. The two scales show the numbers from 0-9 for additions and for subtractions respectively. This simple use of a planetary gear enabled Fardoil to provide a read-out in the range of 0-100 without the need of a carry-over...
I used theGold Gram Price Calculator to figure out that his cleanout for the day was worth $20. That's a lot of work for $20 bucks, but who knows, you might get lucky and find a nice deposit. Realistically all this really is for people is a hobby, or like this YouTuber, a way...