\input zb-basic \input zb-matheduc \iteman{ZMATH 2010e.00555} \itemau{Krech, Ireneusz; Plocki, Adam; Tlust\'y, Pavel} \itemti{Stochastic tools for calculating sums of certain numerical series.} \itemso{\V Cern\'ak, Igor (ed.) et al., IMEM 2009. Proceedings of the international congress on interdisciplinary relationships in the theory and practice of informatics, management, economics and mathematics, Spi\v ssk\'a Kapitula, Slovakia, September 9--11, 2009. Ru\v zomberok: Catholic University in Ru\v zomberok, Faculty of Education (ISBN 978-80-8084-471-4/pbk). 595-604, electronic only (2009).} \itemab Summary: The mathematics analysis theorems let decide if a given numerical series is convergent but in general they don't let appoint its sum. The work concern stochastic tools for calculating sums of certain series. \itemrv{Martin Pap\v{c}o (Ru\v{z}omberok)} \itemcc{I30 K10} \itemut{stochastic tools; calculating sums} \itemli{http://imem.ku.sk:8080/imem-congress/proceedings.jspx} \end