如何为该语言绘制 dfa :L={ w | w 有偶数个 a 和一个或两个 b} [英]How to draw a dfa for this language :L={ w | w has an even number of a’s and one or two b’s}
如何针对一组q状态下的给定DFA提出递归方程? [英]How to propose a recurrence equation for a given DFA over a set of q states?
对于给定的正确输入字符串,如何纠正稍微不正确的DFA? [英]how to correct a slightly incorrect DFA, for a given correct input string?