In finance, implied volatility is an important indicator that reflects the market situation immediately. Many practitioners estimate volatility by using iteration methods, such as the Newton–Raphson (NR) method. However, if numerous implied volatilities must be computed frequently, the...

We carried out an Internet search of publicly available organization charts for the 2,000 largest companies according to Forbes 2019 ranking. We collected 913 organization charts of 648 companies, but only a fraction allowed reproduction. Although we do not have permission to make this visual...

The article describes new trends in teaching foreign languages. The rapid development of new technologies makes it possible to actively apply various visualization techniques that contribute to maintaining motivation and stimulating cognitive interest of foreign students in the process of...