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Concept information

المصطلح المفضل

0112/2///62720#UAA966radian  

تعريف

  • The radian is the standard unit of angular measure, used in many areas of mathematics. It describes the plane angle subtended by a circular arc as the length of the arc divided by the radius of the arc. In the absence of any symbol radians are assumed, and when degrees are meant the symbol $^{\\ circ}$ is used.

مفهوم أوسع

تبصرة

  • The radian and steradian are special names for the number one that may be used to convey information about the quantity concerned. In practice the symbols rad and sr are used where appropriate, but the symbol for the derived unit one is generally omitted in specifying the values of dimensionless quantities.
  • The radian is the standard unit of angular measure, used in many areas of mathematics. It describes the plane angle subtended by a circular arc as the length of the arc divided by the radius of the arc. The unit was formerly a SI supplementary unit, but this category was abolished in 1995 and the radian is now considered a SI derived unit. The SI unit of solid angle measurement is the steradian. The radian is represented by the symbol "rad" or, more rarely, by the superscript c (for "circular measure"). For example, an angle of 1.2 radians would be written as "1.2 rad" or "1.2c" (the second symbol is often mistaken for a degree: "1.2u00b0"). As the ratio of two lengths, the radian is a "pure number" that needs no unit symbol, and in mathematical writing the symbol "rad" is almost always omitted. In the absence of any symbol radians are assumed, and when degrees are meant the symbol u00b0 is used. [Wikipedia]

بلغات أخرى

  • الألمانية

  • الإسبانية

  • الإنجليزية

  • الإيطالية

  • radiano

    البرتغالية

  • радиан

    البلغارية

  • radian

    البولندية

  • radyan

    التركية

  • radián

    التشيكية

  • радиан

    الروسية

  • radian

    الرومانية

  • radian

    السلوفانية

  • 弧度

    الصينية

  • רדיאן

    العبرية

  • راديان

    العربية

  • رادیان

    الفارسية

  • radian

    اللاتينية

  • radian

    الماليزية

  • वर्ग मीटर

    الهندية

  • radián

    الهنغارية

  • ラジアン

    اليابانية

  • ακτίνιο

    اليونانية

URI

https://vocab.sentier.dev/units/unit/RAD

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