Consider the Turing machine instruction shorthand notation, (current state, current symbol, next symbol, next state, X)
What does X represent?
A) direction of move
B) output
C) input
D) placeholder

Question

Quizplus · Accepted Answer

The fourth element in the Turing machine instruction shorthand notation represents the next state. The fifth element, denoted by X, represents the direction of move of the tape head, which can be either L (for left) or R (for right). It does not represent output, input, or a placeholder.

Consider the Turing Machine Instruction Shorthand Notation, (Current State, Current