Tratado de artilleria para el uso de los cavalleros guardias marinas en su Academia PDF Download
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Author: Francisco Javier Rovira
Publisher:
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Category :
Languages : es
Pages :
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Author: Francisco Javier Rovira
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Category :
Languages : es
Pages :
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Author: Thomas Lee Wilkinson
Publisher:
ISBN:
Category : Dowels
Languages : en
Pages : 14
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Author: Tomás de Morla
Publisher:
ISBN:
Category :
Languages : es
Pages : 550
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Author: John Napier
Publisher:
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Category : Computers
Languages : en
Pages : 184
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This first English translation of Napier's Rabdologia provides a clear and readable introduction to a group of physical calculating devices, which, long overshadowed by Napier's logarithms, have their own intrinsic interest and charm. "The tasks which fill'd beginners with dismayThis little book has banish'd clear away." John Napier had already discovered and published an epochmaking treatise on logarithms when in 1617 he turned to "rabdology" or rod-reckoning as yet another means by which to confront the problem of simplifying the huge calculations involved in multiplication, division, and the extraction of roots. This first English translation of Napier's Rabdologia provides a clear and readable introduction to a group of physical calculating devices, which, long overshadowed by Napier's logarithms, have their own intrinsic interest and charm. Book I describes the first device, a set of rods known as "Napier's Bones," which were inscribed with numbers forming multiplication tables and used in conjunction with pencil and paper. Book 11 presents a series of simple calculations that readers can solve by using the rods, and a series of tables of ratios useful for division. Napier then describes the second mechanical device for calculation, a forerunner of the modern calculator that he named promptuary or "place where things are stored ready for use." The third device, similar to a chessboard, allowed calculations to be performed by moving counters around the squares. Observing that the numbers had to be represented in what would now be called binary form, Napier provides instructions for changing from ordinary to binary numbers and back again, a method that worked equally well for multiplication and division and that had a particularly elegant symmetry when applied to the extraction of square roots.
Author: Karen Hunger Parshall
Publisher: American Mathematical Soc.
ISBN: 0821821245
Category : Mathematics
Languages : en
Pages : 430
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Although today's mathematical research community takes its international character very much for granted, this ``global nature'' is relatively recent, having evolved over a period of roughly 150 years-from the beginning of the nineteenth century to the middle of the twentieth century. During this time, the practice of mathematics changed from being centered on a collection of disparate national communities to being characterized by an international group of scholars for whom thegoal of mathematical research and cooperation transcended national boundaries. Yet, the development of an international community was far from smooth and involved obstacles such as war, political upheaval, and national rivalries. Until now, this evolution has been largely overlooked by historians andmathematicians alike. This book addresses the issue by bringing together essays by twenty experts in the history of mathematics who have investigated the genesis of today's international mathematical community. This includes not only developments within component national mathematical communities, such as the growth of societies and journals, but also more wide-ranging political, philosophical, linguistic, and pedagogical issues. The resulting volume is essential reading for anyone interestedin the history of modern mathematics. It will be of interest to mathematicians, historians of mathematics, and historians of science in general.
Author: William Wallace
Publisher: BoD – Books on Demand
ISBN: 3385370507
Category : Fiction
Languages : en
Pages : 266
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Reprint of the original, first published in 1875.
Author: Martin Van Creveld
Publisher: Simon and Schuster
ISBN: 1439143978
Category : History
Languages : en
Pages : 360
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In this impressive work, van Creveld considers man's use of technology over the past 4,000 years and its impact on military organization, weaponary, logistics, intelligence, communications, transportation, and command. This revised paperback edition has been updated to include an account of the range of technology in the recent Gulf War.
Author: Charles Hutton
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 634
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Author: W. P. Symonds
Publisher:
ISBN:
Category : Nautical astronomy
Languages : en
Pages : 152
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Author: Tomás de Morla
Publisher:
ISBN:
Category :
Languages : es
Pages : 740
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