TY - JOUR T1 - Lomená čiara A1 - Doboš, Jozef JA - Obzory matematiky, fyziky a informatiky Y1 - 2007 VL - 36 IS - 4 SP - 31 EP - 34 SN - 1335-4981 N2 - An elementary exposition of continuous piecewise linear functions is presented. ER -