function vs map what difference

what is difference between function and map

English

Etymology

From Middle French function, from Old French fonction, from Latin functiō (performance, execution), from functus, perfect participle of fungor (to perform, execute, discharge).

Pronunciation

  • (UK) IPA(key): /ˈfʌŋ(k)ʃən/, /ˈfʌŋkʃn̩/
  • (US) IPA(key): /ˈfʌŋkʃən/, [ˈfʌŋkʃɪ̈n], [ˈfʌŋkʃn̩]
  • Hyphenation: func‧tion
  • Rhymes: -ʌŋkʃən

Noun

function (plural functions)

  1. What something does or is used for.
    Synonyms: aim, intention, purpose, role, use
  2. A professional or official position.
    Synonyms: occupation, office, part, role
  3. An official or social occasion.
    Synonyms: affair, occasion, social occasion, social function
  4. Something which is dependent on or stems from another thing; a result or concomitant.
  5. A relation where one thing is dependent on another for its existence, value, or significance.
  6. (mathematics) A relation in which each element of the domain is associated with exactly one element of the codomain.
    Synonyms: map, mapping, mathematical function, operator, transformation
    Hypernym: relation
  7. (computing) A routine that receives zero or more arguments and may return a result.
    Synonyms: procedure, routine, subprogram, subroutine, func, funct
  8. (biology) The physiological activity of an organ or body part.
  9. (chemistry) The characteristic behavior of a chemical compound.
  10. (anthropology) The role of a social practice in the continued existence of the group.

Hyponyms

  • subfunction
  • (chemistry): acidity function
  • (psychology): executive ego function
  • (signal processing): spectral density function/spectral function
  • (systems theory): control function
  • Derived terms

    Related terms

    Translations

    References

    • function on Wikipedia.Wikipedia

    Verb

    function (third-person singular simple present functions, present participle functioning, simple past and past participle functioned)

    1. (intransitive) To have a function.
      Synonyms: officiate, serve
    2. (intransitive) To carry out a function; to be in action.
      Synonyms: go, operate, run, work
      Antonym: malfunction

    Related terms

    • functional
    • dysfunction, dysfunctional

    Translations


    Middle French

    Noun

    function f (plural functions)

    1. function (what something’s intended use is)

    Descendants

    • English: function
    • French: fonction


    English

    Etymology

    Shortening of Middle English mappemounde, mapemounde (world map), from Old French mapamonde, from Medieval Latin mappa mundī, compound of Latin mappa (napkin, cloth) and mundus (world). See mop for the first component.

    Pronunciation

    • (Received Pronunciation, General American): enPR: măp, IPA(key): /mæp/
    • Rhymes: -æp

    Noun

    map (plural maps)

    1. A visual representation of an area, whether real or imaginary, showing the relative positions of places and other features.
      a map of Australia, a map of Lilliput
      • 2016, VOA Learning English (public domain)
        Anna, it is a map.

    2. A graphical or logical representation of any structure or system, showing the positions of or relationships between its components.
      a map of the human genome, a map of the Earth’s magnetic field
    3. (mathematics) A function.
      Let




      f


      {\displaystyle f}

      be a map from





      R



      {\displaystyle \mathbb {R} }

      to





      R



      {\displaystyle \mathbb {R} }

    4. (entomology) Any of various nymphalid butterflies of the genera Araschnia (especially, Araschnia levana) and Cyrestis, having map-like markings on the wings.
    5. (Britain, old-fashioned) The face.
    6. (board games, video games) An imaginary or fictional area, often predefined and confined, where a game or a session thereof takes place.

    Usage notes

    For the most part, map and function are synonyms in mathematics, and are frequently used interchangeably; however, certain branches of mathematics sometimes use map in a specialised sense to mean a function that preserves some important property in that branch of mathematics, i.e. a morphism. For instance, in topology, map may specifically mean a continuous function, and in linear algebra it may specifically mean a linear transformation.

    Synonyms

    • plan
    • chart
    • (mathematics): mapping, function.
    • (video games): level, stage.

    Hyponyms

    Derived terms

    Related terms

    Translations

    Verb

    map (third-person singular simple present maps, present participle mapping, simple past and past participle mapped)

    1. (transitive) To represent by means of a map.
    2. (transitive) To create a map of; to examine or survey in order to gather information for a map.
    3. (intransitive, followed by a “to” phrase) To have a direct relationship; to correspond.
      This doesn’t map to my understanding of how things should work.
    4. (transitive, followed by a “to” phrase) To create a direct relationship to; to create a correspondence with.
    5. (mathematics, transitive, followed by a “to” phrase) To act as a function on something, taking it to something else.




      f


      {\displaystyle f}

      maps




      A


      {\displaystyle A}

      to




      B


      {\displaystyle B}

      , mapping every




      a

      A


      {\displaystyle a\in A}

      to




      f
      (
      a
      )

      B


      {\displaystyle f(a)\in B}

      .

    6. (transitive, computing) To assign a drive letter to a shared folder.

    Derived terms

    • map out

    Translations

    References

    • map at OneLook Dictionary Search

    Anagrams

    • AMP, APM, MPA, PAM, Pam, amp, p.m.a., pam, pma

    Cornish

    Etymology

    Cognate with Breton mab, Old Irish macc.

    Noun

    map m (plural mebyow)

    1. son
    2. boy

    Dutch

    Etymology

    Borrowed from German Mappe, from Latin mappa.

    Pronunciation

    • IPA(key): /mɑp/
    • Hyphenation: map
    • Rhymes: -ɑp

    Noun

    map f (plural mappen, diminutive mapje n)

    1. folder
    2. (computing) directory, folder

    Descendants

    • Indonesian: map

    Indonesian

    Etymology

    From Dutch map (folder), from German Mappe, from Latin mappa.

    Pronunciation

    • IPA(key): /ˈmap̚/
    • Hyphenation: map

    Noun

    map (first-person possessive mapku, second-person possessive mapmu, third-person possessive mapnya)

    1. An organizer that papers are kept in, usually with an index tab, to be stored as a single unit in a filing cabinet; folder.
      Synonym: folder

    Further reading

    • “map” in Kamus Besar Bahasa Indonesia (KBBI) Daring, Jakarta: Badan Pengembangan dan Pembinaan Bahasa, Kementerian Pendidikan dan Kebudayaan Republik Indonesia, 2016.

    Polish

    Pronunciation

    • IPA(key): /map/

    Noun

    map f

    1. genitive plural of mapa

    Scottish Gaelic

    Noun

    map m (genitive singular map, plural mapaichean)

    1. Alternative form of mapa

    Mutation


    Welsh

    Etymology

    Borrowed from English map.

    Pronunciation

    • IPA(key): /map/

    Noun

    map m (plural mapiau)

    1. map

    Derived terms

    • mapio (to map)

    Mutation

    Further reading

    • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “map”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies

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