TY - JOUR T1 - Nekonečne malé a veľké veličiny sú súčasťou matematiky A1 - Kupka, Ivan A1 - Kupková, Erika JA - Obzory matematiky, fyziky a informatiky Y1 - 2004 VL - 33 IS - 4 SP - 1 EP - 14 SN - 1335-4981 N2 - The subject of the paper is the historical development of the notion of infinitely small and infinitely large quantities (numbers).We present some facts that can be useful for teachers when thinking about the language of mathematics or answering student questions about the Infinity. ER -