Displayed equations should be centralized and numbered consecutively, with the equation number flush right (i.e. right-justified) and enclosed in parentheses. Equations should be referred to in the text as Eq. (X), where X is the equation number. In multiple-line equations, the number should be given on the last line. Please ensure that equations are numbered correctly, without repetition, and that no important equations are omitted from the numbering scheme.
Equations should be set in the same font size as the main text, with superscripts and subscripts 2--3 points smaller.