It is widely known that for layout of texts with a large number of mathematical and chemical formulas it is convenient to use the LATEX publishing system, which works on the basis of the specialized programming language TEX. Moreover, at present, the TEX format is recognized as the world standard for the preparation of scientific publications, which intensively use formulas, diagrams, graphs, drawings and diagrams. The system allows you to prepare publications in English, Russian, French, German, Italian, Spanish and many other languages ​ ​ with the ability to switch from one language to another in any fragment of the text.