By way of example, for a1 , find the article from the vars array whose critical discipline has the worth a1. The worth for this variable is definitely the coeff subject in that same object.????? ???????. ???? ?? ??? ?? ? ???, ?? ??? ??? ?? ?? ?? ??? ??? ? ????.???? ??? ???? ??? ?? ??? ??? ??? ?? ???? ?? ?? ??? ?? ???, ?? ? ???? ??? ???? ??? ? ??? ?