%0 Journal Article %A M. G. Bashmakova %A N. V. Sycheva %T On some methods of evaluating irrationality measure of the function $\arctan x$ values %J Čebyševskij sbornik %D 2024 %P 5-15 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2024_25_1_a0/ %G ru %F CHEB_2024_25_1_a0