PT  - JOURNAL ARTICLE
AU  - TRUBENOVÁ, Jaroslava
TI  - ARE THEY JUST ORDINARY CONSTANTS OR...
DP  - 2013 Jul 1
TA  - Trends in education
PG  - 148--154
VI  - 6
IP  - 1
IS  - 18058949
AB  - This article represents the first part of the series of the author's articles devoted to historical aspects of the familiar and frequently used mathematical notions in natural and technical sciences.