%0 Journal Article %A P. Yu. Grachev %T Using trigonometric and exponential functions of discrete argument for mathematical modeling of electromechanical and electromagnetic systems with some valve inverters %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2004 %P 197-201 %N 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2004_30_a22/ %G ru %F VSGTU_2004_30_a22