

The best part about using an RPM calculator (I also had an HP) was that if someone asked if they could borrow it, I could tell them that if they call do 1+1 and get 2 on it, they could use it. No one ever was successful.
RPM is great though, it’s so fast if you could quickly organize the order of operations.
Lol yes. I knew what OP meant and assumed they were right and went with it.