000			00872nam a2200157Ia 4500
005			20241211205641.0
008			241211s1976 xx 000 0 und d
020			_afcnm2029
082			_a516.1I/S61
100			_aSmogorzhevsky, A. S.
245		0	_aLobachevskian Geometry
260			_bMIR, _c1976
300			_a71 páginas
505			_a1.A brief on the life and work of N. I. Lobachevshy. 2.On the origian of axioms and their role in geometry. 3.Inversion. 4.Map of a Lobachevskian plane. 5.A circle in a Lobachevskian plane. 6.Equidistant curve. 7.Horocycle. 8.Selected theorems of Lobachevskian geometrt. 9.Supplementary remarks. 10.On natural Logarithms and Hyperbolic functions. 11.Measurement of segments of hyperbolic straight lines. 12.Basic formulas of Hyperbolic trigonometry. 13.The lengths of certain plane curves in Lobachevskian geometry.
942			_yLIB
999			_c51250 _d51250