Angula distanco en kaloto
Abstract
A cap in a 2-D sphere is considered, smaller than an hemisphere. Two points are randomly chosen in the cap. The probability density that the angular separation between the points have a given value is obtained. The knowledge of this function is important for some methods for determining the shape of the universe. ----- Kaloto de 2-D sfera estas studata, pli malgranda ol duonsfero. Du punktoj estas hazarde elektataj en la kaloto. La probabla denso de angula distanco inter la punktoj estas havita. Scio de tiu funkcio estas grava por kelkaj metodoj por specifi la formo de l'universo.
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