It is important to follow IEEE editorial style in all aspects of your IEEE journal article. IEEE has put together guidelines regarding editorial styles, mathematical equations, and references.
The IEEE Editorial Style Manual for Authors (PDF, 732 KB) contains a formal set of editorial guidelines for IEEE Transactions, Journals, and Letters, including:
The IEEE Mathematics Guide (PDF, 718 KB) illustrates how mathematical equations should be rendered in a technical article.
The IEEE Reference Guide (PDF, 464 KB) outlines how to cite a variety of references in IEEE style.
For spelling reference, IEEE uses The Merriam-Webster Dictionary. For guidance on grammar and usage not included in the IEEE Editorial Style Manual, consult The Chicago Manual of Style, published by the University of Chicago Press.
