In this article are presented some teaching activities in the laboratory Current problems in Algebra, Geometry and Topology. The presented activities allow students to get acquainted with science practices, transversal ...

This article investigates the applications of combinatorics rules and principles. Subfactories and the general issue of permutations are being investigated. The formula of the subfactories is proved by two methods.

An important role in the performance of the unmanned aerial vehicle is played by energy consumption and distance traveled. We always have to take these factors into account and we cannot neglect them in any case. For these ...