1. Department of Physics, Yelabuga Institute of Kazan Federal University, Yelabuga, Russia
2. Department of Mathematics and Applied Informatics, Yelabuga Institute of Kazan Federal University, Yelabuga, Russia
3. Department of Methods of Teaching Mathematics and Computer Science, Karaganda Buketov University, Karaganda, Kazahkstan
4. Department of Medical Computer Science and Statistics, Sechenov First Moscow State Medicinal University (Sechenov University), Moscow, Russia