An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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arithmetic progression
  فرایازی ِ حسابی  
farâyâzi-yz hesâbi (#)
Fr.: progression arithmétique  

A → sequence of n numbers or quantities such that the difference between any two successive terms is a constant. In particular, if a is the first term, the nth term is a + (n - 1)d, where d is the constant. Also called → arithmetic sequence.

See also: → arithmetic; → progression.