For citations:

Satybaldina A.N., Ydyrys A.Zh. ANALYTICAL AND APPROXIMATE SOLUTIONS OF THE TWO-DIMENSIONAL LAPLACE EQUATION IN CYLINDRICAL COORDINATES. Herald of the Kazakh-British Technical University. 2026;23(3):106-123. (In Russ.) https://doi.org/10.55452/1998-6688-2026-23-3-106-123