S.Yu. Zhuleva - Senior Lecturer, Department of Computing and Applied Mathematics, Ryazan State Radio Engineering University. E-mail: zhuleva.svetlana@bk.ru A.V. Kroshilin - Associate Professor, Department of Computing and Applied Mathematics, Ryazan State Radio Engineering University. E-mail: alfzdrprog@mail.ryazan.ru S.V. Kroshilina - Associate Professor, Department of Computing and Applied Mathematics, Ryazan State Radio Engineering University. E-mail: asak_kasa@mail.ru