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Non-euclidean geometry
This textbook introduces non-Euclidean geometry, and the third edition adds a new chapter, including a description of the two families of 'mid-lines' between two given lines and an elementary derivation of the basic formulae of spherical trigonometry and hyperbolic trigonometry, and other...
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| Lenguaje: | eng |
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University of Toronto Press
1965
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| Acceso en línea: | http://cds.cern.ch/record/2296039 |