digraph ex1p2a { rankdir="LR"; node [texmode="math",shape="circle",style="state"]; q0 [style="state,initial",label="0"]; q1 [style="state",label="1"]; q2 [style="state",label="2"]; q3 [style="state",label="3"]; q4 [style="state",label="4"]; q5 [style="state",label="5"]; q6 [style="state",label="6"]; q7 [style="state,final",label="7"]; edge [texmode="math",lblstyle="auto"]; q0 -> q0 [label="a,b",topath="loop below"]; q0 -> q1 [label="e",texlbl="$\varepsilon$"]; q0 -> q4 [label="e",texlbl="$\varepsilon$"]; q1 -> q2 [label="a"]; q4 -> q5 [label="b"]; q2 -> q3 [label="a"]; q5 -> q6 [label="b"]; q3 -> q7 [label="e",texlbl="$\varepsilon$"]; q6 -> q7 [label="e",texlbl="$\varepsilon$"]; q7 -> q7 [label="a,b",topath="loop below"]; }