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Projective Geometry - Lawrence Edwards

Paperback Published: 17th August 2003
ISBN: 9780863153938
Number Of Pages: 352

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The exercises in this book reveal the secrets of space. With over 200 instructive diagrams, Lawrence Edwards presents a clear and artistic understanding of the intriguing qualities of non-Euclidian geometry. Author of The Vortex of Life (Floris Books, 1993), Edwards has researched and taught this subject for more than 40 years. An invaluable resource for Steiner-Waldorf teachers.

'Edwards has researched projective geometry for more than 40 years. He is clearly an authority.' -- Child and Man 'Contains many geometrical illustrations throughout and can be approached by anyone willing to think and draw, without previous geometrical knowledge. The reason why modern materialists are unable to understand anything of a spiritual nature is that their ways of thinking, based purely upon sense perception, are much too rigid. Books such as this can help loosen such rigidity.' -- New View, December 2003

Forewordp. 9
Introductionp. 11
Dualityp. 19
Collineationp. 35
Cross Ratiop. 42
Correspondencesp. 55
The Conicp. 66
Growth Measurep. 98
Circling and Step Measurep. 109
Involutionp. 116
Pole and Polarp. 124
Dual Properties of Curvesp. 131
Pencils and Ranges of Conicsp. 137
The Imaginaryp. 143
The Nature of a Curvep. 154
The Imaginary Part of a Conicp. 163
Four-Point Systems with Imaginary Elementsp. 173
The Projective Idea of a Circlep. 179
The Imaginary Circlep. 185
Four-Point Systems of Conicsp. 193
Higher Order-Curvesp. 198
Path Curvesp. 204
Osculating Conicsp. 234
Fundamental Notions for Geometry in Spacep. 242
The Quadricp. 249
The Imaginary Part of a Spherep. 270
The Twisted Cubicp. 276
More Developablesp. 316
The Linear Congruence and the Tetrahedronp. 321
Perspectivep. 332
Indexp. 343
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780863153938
ISBN-10: 0863153933
Audience: General
Format: Paperback
Language: English
Number Of Pages: 352
Published: 17th August 2003
Publisher: Floris Books
Country of Publication: GB
Dimensions (cm): 23.4 x 15.6  x 3.05
Weight (kg): 0.54
Edition Number: 2
Edition Type: Revised