vectorとは 意味・読み方・使い方

語源

Learned borrowing from Latin vector (“carrier, transporter”), from vehō (“I carry, I transport, I bear”), also ultimately the root of English vehicle.

The “person or entity that passes along an urban legend or other meme” sense derives from the disease sense.

The mathematics sense was coined by William Rowan Hamilton in 1846.

発音

• ハイフネーション: vec‧tor
• (英国発音) IPA^(key): /ˈvɛktə/
• (米国発音) enPR: vĕk'tər, IPA^(key): /ˈvɛktɚ/
• 韻: -ɛktə(ɹ)

名詞

vector (複数形 vectors)

2. (mathematics) A directed quantity, one with both magnitude and direction; the signed difference between two points.

   Hypernym: tensor

   • 1914, The New Student's Reference Work:

     As examples of vector quantities may be mentioned the distance between any two given points, a velocity, a force, an acceleration, angular velocity, intensity of magnetization flux of heat.

3. (mathematics) An ordered tuple representing such.
4. (mathematics) Any member of a (generalized) vector space.

   The vectors in ${\displaystyle {\mathbb {Q} }[X]}$ are the single-variable polynomials with rational coefficients: one is ${\displaystyle \textstyle x^{42}+{\frac {1}{137}}x-1}$.

5. (aviation) A chosen course or direction for motion, as of an aircraft.
   • 2017, Mark Chambers, ‎Tony Holmes, Nakajima B5N ‘Kate’ and B6N ‘Jill’ Units (page 32)

     I was told to fly out on a vector of 100 degrees to meet a strong plot of aircraft 30 miles from the coast.

7. (epidemiology) A carrier of a disease-causing agent.
8. (sociology) A person or entity that passes along an urban legend or other meme.
   • 2020 October 12, Andrew Marantz, “Why Facebook Can’t Fix Itself”, in The New Yorker‎^[1]:

     These days, their primary job is to insist that Facebook is a fun place to share baby photos and sell old couches, not a vector for hate speech, misinformation, and violent extremist propaganda.

9. (psychology) A recurring psychosocial issue that stimulates growth and development in the personality.
10. The way in which the eyes are drawn across the visual text. The trail that a book cover can encourage the eyes to follow from certain objects to others.(Can we add an example for this sense?)
11. (computing, operating systems) A memory address containing the address of a code entry point, usually one which is part of a table and often one that is dereferenced and jumped to during the execution of an interrupt.
12. (programming) A one-dimensional array.
    • 2004, Jesse Liberty, Bradley L. Jones, Sams Teach Yourself C++ in 21 Days (page 694)

      To create a vector of students in a class, you will want the vector to be large enough […]

13. (computer graphics, attributive) A graphical representation using outlines; vector graphics.

    Coordinate term: raster

    a vector image, vector graphics

14. (molecular biology) A DNA molecule used to carry genetic information from one organism into another.

使用する際の注意点

• (programming): The term vector is used loosely when the indices are not (either positive または non-negative) integers.

下位語

派生語

動詞

vector (三人称単数 現在形 vectors, 現在分詞 vectoring, 過去形および過去分詞形 vectored)

1. To set (particularly an aircraft) on a course toward a selected point.
   • 1994, Eve Kosofsky Sedgwick, Tendencies:

     […] if love is vectored toward an object and Elinor's here flies toward Marianne, Marianne's in turn toward Willoughby.

2. (computing) To redirect to a vector, or code entry point.

派生語

• thrust vectoring

参照

• The New Oxford Dictionary of English

アナグラム

• Covert, corvet, covert

Latin

語源

vehō +‎ -tor

発音

• (Classical) IPA^(key): /ˈu̯ek.tor/, [ˈu̯ɛkt̪ɔr]
• (Ecclesiastical) IPA^(key): /ˈvek.tor/, [ˈvɛkt̪or]

名詞

vector m (genitive vectōris); third declension

1. bearer, carrier
2. passenger

語形変化

Third-declension noun.

関連する語

• vectīgal

派生した語

動詞

vector

1. first-person singular present passive indicative of vectō

参照

• “vector”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “vector”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• Carl Meißner; Henry William Auden (1894) Latin Phrase-Book‎^[2], London: Macmillan and Co.
  • passengers: vectores (Phil. 7. 9. 27)