Definition

Identifies that the LaTeX typesetting system is used to encode chemical equations and formulas.

Examples

Example 1 — EPUB 3
<meta property="schema:accessibilityFeature">
   latex-chemistry
</meta>
Example 2 — EPUB 2
<meta name="schema:accessibilityFeature"
      content="latex-chemistry"/>
Example 3 — Audiobooks
"accessibilityFeature": ["latex-chemistry"]

Explanation

The latex-chemistry value is used to indicate that a publication contains chemical formulas and equations formatted using the LaTeX typesetting system.

LaTeX equations can retain semantic information about formulas that is not always available in other formats (e.g., presentational MathML) making them easier to understand.

The ability to read LaTeX formulas often requires being able to export the data to another program, however, as LaTeX does not natively render in Web-based formats like EPUB. As a result, it is not commonly found at this time.

A LaTeX-formatted formula.

\begin{document} \ch{H2O} \end{document}

ONIX Mapping

The latex-chemistry value maps to list 196 code 54 ("Accessible chemistry content (as LaTeX)").

A publication with chemical content will also set list 81 code 47 ("Chemical content"). This value is equivalent to setting a textual access mode.

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