AskDefine | Define notation

Dictionary Definition



1 a technical system of symbols used to represent special things [syn: notational system]
2 a comment or instruction (usually added); "his notes were appended at the end of the article"; "he added a short notation to the address on the envelope" [syn: note, annotation]
3 the activity of representing something by a special system of marks or characters

User Contributed Dictionary



  1. The act, process, method, or an instance of representing by a system or set of marks, signs, figures, or characters.
  2. A system of characters, symbols, or abbreviated expressions used in an art or science or in mathematics or logic to express technical facts or quantities.
  3. A specific note or piece of information written in such a notation.
    She made a notation in the margin of the book.

Related terms



Extensive Definition

The term notation can refer to:


Written Communication

  • Symbol, something that stands for, or suggests, something else



  • Bra-ket notation or Dirac Notation is another representation of probability in quantum mechanics
  • Tensor notation is a general way to represent a gravitational field in general relativity

Typographical conventions

  • Infix notation, the common arithmetic and logical formula notation, such as a+b-c
  • Polish notation or "prefix notation", which places the operator before the operands (arguments), such as + a b
  • Reverse Polish notation or "postfix notation", which places the operator after the operands, such as a b +
  • Numeral systems, notation for writing numbers, including
    • Scientific notation for expressing large and small numbers
    • Sign-value notation, using signs or symbols to represent numbers
    • Positional notation also known as place-value notation, in which each position is related to the next by a multiplier which is called the base of that numeral system
      • Binary notation, a positional notation in base two
      • Octal notation, a positional notation in base eight, used in some computers
      • Decimal notation, a positional notation in base ten
      • Hexadecimal notation, a positional notation in base sixteen, commonly used in computers
      • Sexagesimal notation, an ancient numeral system in base sixty
  • See also Table of mathematical symbols - for general tokens and their definitions

Other systems

notation in Czech: Notace
notation in French: Notation
notation in Dutch: Notatie
notation in Polish: Notacja
notation in Portuguese: Notação

Synonyms, Antonyms and Related Words

abstract, accent, accent mark, addition, adversaria, aide-memoire, alphabet, annotation, apparatus criticus, approximation, arrangement, art, bar, binary digit, bit, blueprint, cancel, character, charactering, characterization, characters, chart, chit, choreography, cipher, code, comment, commentary, commentation, conventional representation, copy, credit, custos, dance notation, debit, delineation, demonstration, depiction, depictment, diagram, differentiation, digit, direct, division, docket, dot, double entry, draft, drama, drawing, edition, entry, equation, evolution, exegesis, exemplification, expression mark, extrapolation, fermata, figuration, figure, footnote, gloss, hieroglyphic, hold, hymnal, hymnbook, iconography, ideogram, illustration, imagery, imaging, instrumental score, integration, interpolation, inversion, involution, item, jotting, key signature, lead, letter, libretto, ligature, limning, logogram, logograph, lute tablature, map, marginal note, marginalia, mark, measure, memo, memoir, memorandum, memorial, metronomic mark, minute, minutes, multiplication, music, music paper, music roll, musical notation, musical score, note, note of explanation, number, numeral, numero, opera, opera score, orchestral score, part, pause, piano score, pictogram, picturization, plan, portraiture, portrayal, practice, prefigurement, presa, presentment, printing, projection, proportion, realization, record, reduction, register, registry, reminder, rendering, rendition, representation, schema, scholia, scholium, score, script, segno, sheet music, short score, sign, signature, signs, single entry, slur, songbook, songster, subtraction, swell, syllabary, symbol, symbolism, symbols, tablature, tempo mark, text, tie, time signature, transcript, transcription, transformation, version, vinculum, vocal score, word of explanation, writing, written music
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