question about expression in transducers

question about expression in transducers

par Ke Wang,
Nombre de réponses : 2

Hi!

In quiz 2, I see the following expression:

T3 = ([a − z]+)(((xXs) ⊗ (xes))|((yXs) ⊗ (ies))|(([∧ x])(Xs) ⊗ (s)))

I wonder what does the expression ^x mean here ?

Thanks in advance, have a nice day!