# Download EBOOK Geometry and the Imagination PDF for free

Category: Science & GeographyThe author of the book: David HilbertFormat files: PDF, EPUB, TXT, DOCXThe size of the: 7.97 MBLanguage: EnglishISBN-13: 9780821819982Edition: American Mathematical SocietyDate of issue: 1 October 1999 |

## Description of the book "Geometry and the Imagination":

This remarkable book has endured as a true masterpiece of mathematical exposition. There are few mathematics books that are still so widely read and continue to have so much to offer - even after more than half a century has passed! The book is overflowing with mathematical ideas, which are always explained clearly and elegantly, and above all, with penetrating insight. It is a joy to read, both for beginners and experienced mathematicians. 'Hilbert and Cohn-Vossen' is full of interesting facts, many of which you wish you had known before. It's also likely that you have heard those facts PDF before, but surely wondered where they could be found. The book begins with examples of the simplest curves and surfaces, including thread constructions of certain quadrics and other surfaces.The chapter on regular systems of points leads to the crystallographic groups and the regular polyhedra in $mathbb{R}^3$. In this chapter, they also discuss plane lattices. By considering unit lattices, and throwing in a small amount of number theory when necessary, they effortlessly derive Leibniz's series: $pi/4 = 1 - 1/3 1/5 - 1/7 - ldots$. In the section on lattices in three and more dimensions, the authors consider sphere-packing problems, including the famous ePub Kepler problem.One of the most remarkable chapters is 'Projective Configurations'. In a short introductory section, Hilbert and Cohn-Vossen give perhaps the most concise and lucid description of why a general geometer would care about projective geometry and why such an ostensibly plain setup is truly rich in structure and ideas. Here, we see regular polyhedra again, from a different perspective. One of the high points of the chapter is the discussion of Schlafli's Double-Six, which leads to the description of the 27 lines on the general smooth cubic surface. As is true throughout the book, the magnificent drawings PDF in this chapter immeasurably help the reader.A particularly intriguing section in the chapter on differential geometry is Eleven Properties of the Sphere. Which eleven properties of such a ubiquitous mathematical object caught their discerning eye and why? Many mathematicians are familiar with the plaster models of surfaces found in many mathematics departments. The book includes pictures of some of the models that are found in the Gottingen collection. Furthermore, the mysterious lines that mark these surfaces are finally explained!The chapter on kinematics includes a nice discussion of linkages and the geometry of configurations of points and ePub rods that are connected and, perhaps, constrained in some way. This topic in geometry has become increasingly important in recent times, especially in applications to robotics. This is another example of a simple situation that leads to a rich geometry. It would be hard to overestimate the continuing influence Hilbert-Cohn-Vossen's book has had on mathematicians of this century. It surely belongs in the 'pantheon' of great mathematics books.## Reviews of the Geometry and the Imagination

Up to now regarding the guide we've got Geometry and the Imagination responses consumers never have however still left their particular article on the experience, you aren't make out the print yet. But, if you have currently see this e-book and you're able to produce the findings convincingly request you to take your time to go out of an overview on our site (we can release each negative and positive critiques). To put it differently, "freedom of speech" We totally supported. Your current suggestions to book Geometry and the Imagination : different viewers are able to determine with regards to a e-book. This sort of support could make people additional U . s .!## David Hilbert

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