Automata

• How to Determine a Language from a Recursive Definition
  A set over {a,b} cannot be identified without its base cases and recursive rules; learn what details determine the language and how to derive examples.
• Can an NFA Reach Two Final States at the Same Time?
  An NFA can have multiple accepting states reachable after the same input. Acceptance requires at least one successful path, not a unique final state.
• How to Fix “TeX Capacity Exceeded: Input Stack Size=5000”
  The TeX input stack error usually signals recursive macro or file input, not a diagram that is merely too large. Find the loop and fix its cause.