notationally

Notationally is a digital platform and community dedicated to standardizing and sharing mathematical, scientific, and engineering notation. It provides a formal notation language, a live renderer, and a collaboratively maintained library of notation schemas designed to reduce ambiguity in interdisciplinary communication. The project aims to complement traditional typesetting by enabling consistent definitions of symbols, operators, precedences, and rendering rules across disciplines and platforms.

Notationally supports schemas that describe how a symbol should be displayed, how it behaves in expressions, and how it translates into output formats such as LaTeX, MathML, and HTML. Users can contribute new schemas, observe version histories, and apply schemas to documents, lectures, or software tools. The platform also offers tutorials, sample notebooks, and an API for integration with learning management systems and document editors.

The governance model combines open contribution with a tiered review process managed by a community board and a set of maintainers. The project is released under a permissive open-source license, with transparent change logs and a public issue tracker.

Reception has highlighted Notationally’s potential to improve clarity of mathematical argumentation and cross-disciplinary publishing, while critics point to a learning curve and the risk of fragmentation if schemas proliferate without careful curation. In usage, the adverb notationally is used to describe aspects relating to notation, for example, notationally consistent conventions.