Introduction to Non-Euclidean Geometry echoes the folk spirit of

echoes the folk spirit of his native Czechoslovakia as well as American influences

books on phenomena

books on microscopic worlds

proportion

computer simulation

Introduction to Non-Euclidean Geometry echoes the folk spirit ofOne of the first college level texts for elementary courses in non Euclidean geometry, this concise, readable volume is geared toward students familiar with calculus. A full treatment of the historical background explores the centuries long efforts to prove Euclid's parallel postulate and their triumphant conclusion. Numerous original exercises form an integral part of the book. Topics include hyperbolic plane geometry and hyperbolic plane