The Elements of Euclid for the Use of Schools and Colleges: Comprising the First Two Books and Portions of the Eleventh and Twelfth Books; With Notes, Todhunter Isaac
This book collects together the problems set out at end of each chapter in the author's Textbook of Plane Trigonometry along with the possible solutions, which are linked with an explanation of the sort of reasoning used in order to arrive at one of the answers. In many cases, several answers are given for one question.
The result is a book which can be used independently of the main volume.
This book helps in acquiring a better understanding of the basic principles of Plane Trigonometry and in revising a large amount of the subject matter quickly.
It is also to be noticed, that each Example, or Problem is here enunciated at the head of its Solution as well as all the relevant articles are part of the appendix; so that the book, though a fitting Companion to the textbook, is not inseparable from it, but may be used, as a Book of Exercises, with any other treatise on Plane Trigonometry.
We are grateful for this opportunity to put the materials into a consistent format, and to correct errors in the original publication that have come to our attention. We are highly indebted to Chandra Shekhar Kumar for the fruitful discussions which led to the idea of masterminding this entire project. He helped us put hundreds of pages of typographically difficult material into a consistent digital format.
The process of compiling this book has given us an incentive to improve the layout, to double-check almost all of the mathematical rendering, to correct all known errors, to improve the original illustrations by redrawing them with Till Tantau's marvelous TikZ.
Thus the book now appears in a form that we hope will remain useful for at least another generation.
Автор: Todhunter, Andrew Название: Fall of the Phantom Lord: Climbing and the Face of Fear ISBN: 0385486421 ISBN-13(EAN): 9780385486422 Издательство: Random House (USA) Цена: 9190.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: In 1989, while attempting a new route on a difficult overhanging rock face, climber Dan Osman fell. Again and again, protected by the rope, he fell. He decided then that it would not be in climbing but in falling that he would embrace his fear--bathe in it, as he says, and move beyond it. A captivating exploration of the daredevil world of rock climbing, as well as a thoughtful meditation on the role of risk and fear in the author's own life. In the tradition of the wildly popular man-versus-nature genre that has launched several bestsellers, Andrew Todhunter follows the lives of world-class climber Dan Osman and his coterie of friends as he explores the extremes of risk on the unyielding surface of the rock. Climbing sheer rock faces of hundreds or thousands of feet is more a religion than a sport, demanding dedication, patience, mental and physical strength, grace, and a kind of obsession with detail that is crucial just to survive. Its artists are modern-day ascetics who often sacrifice nine-to-five jobs, material goods, and the safety of everyday life to pit themselves and their moral resoluteness against an utterly unforgiving opponent. In the course of the two years chronicled in Fall of the Phantom Lord, the author also undertakes a journey of his own as he begins to weigh the relative value of extreme sports and the risk of sudden death. By the end of the book, as he ponders joining Osman on a dangerous fall from a high bridge to feel what Osman experiences, Todhunter comes to a new understanding of risk taking and the role it has in his life, and in the lives of these climbers. Beautifully written, Fall of the Phantom Lord offers a fascinating look at a world few people know. It will surely take its place alongside Into Thin Air and The Perfect Storm as a classic of adventure literature.
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