In linguistics and semiotics, a notation system is a system of graphics or symbols, characters and abbreviated expressions, used (for example) in artistic and scientific disciplines to represent technical facts and quantities by convention. Therefore, a notation is a collection of related symbols that are each given an arbitrary meaning, created to facilitate structured communication within a domain knowledge or field of study. Standard notations refer to general agreements in the way things are written or denoted. The term is generally used in technical and scientific areas of study like mathematics, physics, chemistry and biology, but can also be seen in areas like business, economics and music.

Written communication

Writing systems

Linguistics

Biology and medicine

Chemistry

Computing

Logic

A variety of symbols are used to express logical ideas; see the List of logic symbols

Management

Mathematics

Physics

Typographical conventions

Sports and games

Graphical notations

Music

Dance and movement

Science

Other systems