An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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quadrature of the circle
  چاروشش ِ پرهون، ~ ِ دایره  
cârušeš-e parhun, ~ dâyeré
Fr.: quadrature du cercle  

Constructing a square whose area equals that of a given circle. This was one of the three geometric problems of antiquity. It was finally proved to be an impossible problem when π was proven to be transcendental
by Lindemann in 1882. Same as → squaring the circle.

See also: → quadrature; → circle.