An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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proportionality constant
  پایای ِ برپارشیگی  
pâyâ-ye barpârešigi
Fr.: constante de proportionalité  

Math.: A → constant that converts a proportionality into an → equation. Thus the proportionality constant k converts the proportionality y ∝ x into the equation y = kx.

See also: → proportionality + → constant.