High Quality Content by WIKIPEDIA articles! Spherical geometry is the geometry of the two-dimensional surface of a sphere. It is an example of a non-Euclidean geometry. Two practical applications of the principles of spherical geometry are to navigation and astronomy. In plane geometry the basic concepts are points and (straight) lines. On the sphere, points are defined in the usual sense. The equivalents of lines are not defined in the usual sense of "straight line" but in the sense of "the shortest paths between points," which are called geodesics.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.