i am a student and i am trying to solve this problem

draw an automata with 4 states accepting this (a,ab,ba)*

i have tried many times drawing it but unfortunately i am unable to solve it. i don't know how much i have to keep writing in order for this to accept my question can anyone show me how to draw it please ? i appreciate your help thank you

  • 1
    Hi berobero and welcome to TeX.SX. In its current form, your question might not receive many answers. Please take a look at the How to Ask-page and try to improve your question according to the guidance found there. This may require you to show some effort on your part in terms of attempting a solution. If you have questions about what to do or if you don't quite understand what this means, please ask for clarification using the add comment function. Jan 23, 2018 at 21:10
  • welcome to tex.se. see Automata Drawing Library in tikz & pgf manual, page 513. by the way, this site is not intended for solving students homework ...
    – Zarko
    Jan 23, 2018 at 21:10
  • Funny thing: Two questions prior to yours is this: How can I have TikZ automata accepting nodes be the same size as nonaccepting nodes?
    – Skillmon
    Jan 23, 2018 at 21:24
  • By (a,ab,ba)*, you mean (a+ab+ba)*, right?
    – user78499
    Jan 23, 2018 at 21:42
  • yes it is the same (a,ab,ba)* and (a+ab+ba)* ....... how to draw it ?
    – gingerbell
    Jan 24, 2018 at 9:47


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