notation

Definitions

General English

  • noun a system of symbols used to show notes in music, or to show signs used in mathematics

Computing

  • noun a method of writing or representing numbers

Electronics

  • A system of characters or symbols utilized to represent numbers, values, or quantities. For example, scientific notation, complex notation, floating-point notation, binary notation, or decimal notation.

Information & Library Science

  • noun a system of symbols used to express concepts like music or mathematics
http://www.dictionarycentral.com/definition/notation.html