@misc{Janaszak_Tadeusz_A_2013, author={Janaszak, Tadeusz}, identifier={DOI: 10.15611/dm.2013.10.03}, year={2013}, rights={Wszystkie prawa zastrzeżone (Copyright)}, publisher={Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu}, description={Didactics of Mathematics, 2013, Nr 10 (14), s. 33-44}, language={eng}, abstract={In classic calculus increasing functions are considered. The idea of increasing is connected with an interval. In this article the idea of increasing function is connected with a point and some neighbourhood of the point. It is defined as an increasing point of the function. This is proved by the theorem: if each point of an interval is a point of increasing a function then the function is increasing at an interval.}, title={A handful of theorems about point increase}, type={artykuł}, keywords={increasing function, point of increasing, continuous function, decreasing function, point of decreasing, sequence of increasing points}, }