I was working on some questions in the book "Elements Of The Theory Of Computation", by Lewis and Papadimitriou, and I need help with one question - question 4.1.8 (chapter 4):
Give the full details of the turing machines illustrated:
I managed to solve everything but this, and that is because I don't know what the dot is used for. Couldn't find any explanation in the book. There are two more machines in this question (without dots), but I solved them.