ELA formatting guidelines


A manuscript for ELA must be written in acceptable and fluent English. It may be in color provided it is equally readable when displayed in black and white.

Manuscripts for ELA must be developed using the SIAM LaTeX Macro Package, which can be downloaded at the SIAM website (download the siamltex.zip file). The ELA style is implemented and illustrated in the downloadable example (sample.tex, sample.pdf).

Manuscripts submitted to ELA are compiled in LaTeX and then converted to PostScript and PDF. It is the author's responsibility to see that LaTeX can compile the manuscript.  However, successful compilation of the manuscript does not guarantee that the resulting file can be processed into by ELA's software. In case of difficulties, it may be necessary for the author to revise or reconstruct the article's PostScript illustrations. Accordingly, authors are advised to save the data and the programs that produced the data until their articles are published. Normally, PostScript files produced by such programs as MATLAB or Maple can be processed without difficulty.

The sample file gives examples of several important formatting conventions.  These are given as a checklist below.

Title, authors, etc

The title and submission information follows that of the sample.


Authors, addresses and funding information format follows that of the sample.

A good descriptive abstract, written in the third person and of no more that 250 words, is given.

A short list (4-6) of pertinent keywords is provided.

Primary and secondary AMS classifications are listed.

General formatting

Each section begins with \section{name-of-section} command.

Definitions, lemmas, theorems, etc., are numbered consecutively within each section. 

Formulas are numbered on the left.  This conventions will be automatic when the style file is properly used.

The command sets 

          \begin{lemma} \end{lemma},

          \begin{theorem} \end{theorem},       

          \begin{corollary} \end{corollary}

are used to create Lemmas, Theorems, and Corollaries.

Proofs are begun with \begin{proof} and ended with \end{proof}. When the end of a  proof is a displayed formula, the end of the proof mark is in the line of the formula (this can be accomplished using the \cvd macro)

Text in remark and definition boxes is in roman font (this can be achieved with a \begin{remark} \rm  Content of remark \end{remark}, and similarly for definitions).

If a formula is not referenced in the text, then it should not be numbered.


Use the macros \reals to denote the real numbers and \complex to denote the complex numbers.

Use square brackets [ and ] for arrays and matrices.

Figures & Illustrations

Figures may be produced using LaTeX commands, or they may be produced in PostScript. All manuscripts using PostScript figures must include the LaTeX commands required to incorporate the figure into the manuscript.  Please consult the LaTeX sample and a LaTeX manual for more information about adding figures to a manuscript.

Citations within the text

A consistent style should be used, and the style of in-text citations should conform to the reference style chosen. To refer to a specific page or item in an article or book the following formats may be used: [2, p. 51]; [H, p. 51]; Hershkowitz [2, p. 51]; or Hershkowitz (1977, p. 51).


References are  listed in alphabetical order.

The bibliography style "plain", as per ELA format, is used.

There is a reference in the text for each item in the bibliography.

The bibliography in the sample file for citing journal articles and books is consistently followed.

        Example for a journal article:

          [1] Hans Schneider. Theorems on M-splittings of a singular M-matrix which

              depend on graph structure. Linear Algebra and its Applications, 58:407–424,    


        Example for a book:

           [2] Richard S. Varga. Matrix Iterative Analysis. Prentice-Hall, Englewood Cliffs,    

                New Jersey, 1962.

Throughout entire bibliography the journal titles are either completely spelled out or,

   abbreviated (using the abbreviation found in Mathematical Reviews).