Fibonacci S Liber Abaci

Author: Laurence Sigler
Publisher: Springer Science & Business Media
ISBN: 9781461300793
Size: 15.44 MB
Format: PDF
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First published in 1202, Fibonacci’s Liber Abaci was one of the most important books on mathematics in the Middle Ages, introducing Arabic numerals and methods throughout Europe. This is the first translation into a modern European language, of interest not only to historians of science but also to all mathematicians and mathematics teachers interested in the origins of their methods.

Crisis Of The 17th Century

Author: Hugh Redwald Trevor-Roper
Publisher: Liberty Fund Inc.
ISBN: PSU:000047248304
Size: 17.24 MB
Format: PDF, ePub
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The Crisis of the Seventeenth Century collects nine essays by Trevor-Roper on the themes of religion, the Reformation, and social change. The Civil War, the Restoration, and the Glorious Revolution in England laid the institutional and intellectual foundations of the modern understanding of liberty. Trevor-Roper's essays uncover new pathways to understanding this seminal time. In his longest essay, "The European Witch-craze of the Sixteenth and Seventeenth Centuries, " Trevor-Roper points out that "In England the most active phase of witch-hunting coincided with times of Puritan pressure--the reign of Queen Elizabeth and the period of the civil wars--and some very fanciful theories have been built on this coincidence. But...the persecution of witches in England was trivial compared with the experience of the Continent and of Scotland. Therefore...[one must examine] the craze as a whole, throughout Europe, and [seek] to relate its rise, frequency, and decline to the general intellectual and social movements of the time...." Neither Catholic nor Protestant emerges unscathed from the examination to which Trevor-Roper subjects the era in which, from political and religious causes, the identification and extirpation of witches was a central event.