TY - JOUR T1 - Lokálne extrémy A1 - Doboš, Jozef JA - Obzory matematiky, fyziky a informatiky Y1 - 2004 VL - 33 IS - 1 SP - 15 EP - 21 SN - 1335-4981 N2 - In this paper an elementary approach to relative extrema of a function y = x^3 ax^2 bx c is presented. ER -