Comment on "MMM1D: A method for calculating electrostatic interactions in one-dimensional periodic geometries" [J. Chem. Phys. 123, 144103 (2005)].

This comment gives an alternative derivation of the MMM1D method reported by Arnold and Holm [J. Chem. Phys.123, 144103 (2005)]. Moreover, several errors in expressions presented in the cited paper are identified.