Non-Euclidean Geometry Each plate has been painstakingly

Each plate has been painstakingly reproduced from the autographed

Immensely useful to costume and cultural historians

classical political

Professor Gillings examines the development of Egyptian mathematics from its origins in commercial and practical computations to such accomplishments as the solution of problems in direct and inverse proportion

Non-Euclidean Geometry Each plate has been painstakinglyThis accessible approach features two varieties of proofs: stereometric and planimetric, as well as elementary proofs that employ only the simplest properties of the plane. A short history of geometry precedes a systematic exposition of the principles of non Euclidean geometry. Starting with fundamental assumptions, the author examines the theorems of Hjelmslev, mapping a plane into a circle, the angle of parallelism and area of a polygon, regular