Mačys, J.J. and Sušinskas, J. (2014) “The Euler–Mascheroni constant in school”, Lietuvos matematikos rinkinys, 55(A), pp. 17–21. doi:10.15388/LMR.A.2014.04.
It is demonstrated how the Euler–Mascheroni constant $\gamma$ can be defined quite simple in the school. Two approaches are considered: the first one using logarithms and derivatives, and the second one using only elementary knowledge of sequences.