Basically a non-Euclidean geometry book, this text updates the teaching of college geometry based upon three
fundamental ideas: (A) geometries only approximate reality, (B) the
best presentation of a geometry is by transformations and transformation
groups, and (C) points and other geometric objects should be coordinatized.
Modern Geometries is engaging, accessible, and describes geometry as it is understood and used by contemporary
mathematicians and theoretical scientists.
Approaches subject matter from a modern point of view, yet
includes coverage of many traditional topics.
Covers several non Euclidean geometries in great detail.
Integrates the ideas of Felix Klein throughout the text,
making systematic use of Klein's Erlanger Program (which is accepted
as the right way to view geometry by research mathematicians and scientists).
Uses coordinates throughout the textnot only real numbers
but also complex numbers (and other number systems).
Presents projective geometry, and includes a treatment of Hilbert's
axioms for Euclidean geometry.
Effectively integrates over 200 line drawings plus 7 plates
illustrating connections between geometry and art.
Features over 500 problems ranging from routine to difficult, many
with accompanying hints and/or worked examples.
Includes a series of questions embedded in the text that test immediate understanding
of topics under discussion to encourage active reading of the text.
Offers a flexible format and organization suitable for a
wide variety of geometry courses.
1. Some History.
2. Complex Numbers.
3. Geometric Transformations.
4. The Erlanger Programm.