For citations:

Bashmakova M.G., Sycheva N.V. On some methods of evaluating irrationality measure of the function arctan 𝑥 values. Chebyshevskii Sbornik. 2024;25(1):5-15. (In Russ.) https://doi.org/10.22405/2226-8383-2024-25-1-5-15