21. Oughtred, William --  Encyclopædia Britannica oughtred, william English mathematician and Anglican minister who invented theearliest form of the slide rule, two identical linear or circular logarithmic http://www.britannica.com/eb/article-9057717

Home Browse Newsletters Store ... Subscribe Already a member? Log in Content Related to this Topic This Article's Table of Contents William Oughtred Print this Table of Contents Shopping Price: USD $1495 Revised, updated, and still unrivaled. The Official Scrabble Players Dictionary (Hardcover) Price: USD $15.95 The Scrabble player's bible on sale! Save 30%. Merriam-Webster's Collegiate Dictionary Price: USD $19.95 Save big on America's best-selling dictionary. Discounted 38%! More Britannica products Oughtred, William  Encyclopædia Britannica Article Page 1 of 1 William Oughtred born March 5, 1574, Eton, Buckinghamshire, England died June 30, 1660, Albury, Surrey The first slide rule English mathematician and Anglican minister who invented the earliest form of the slide rule , two identical linear or circular logarithmic scales held together and adjusted by hand. Improvements involving the familiar inner sliding rule came later. Oughtred was educated at Eton College Oughtred, William...

22. Encyclopædia Britannica Topic oughtred, william. Encyclopædia Britannica Related Articles. development ofthe slide rule history of computers http://www.britannica.com/eb/topic?idxStructId=435352&typeId=13

23. William Oughtred biography of william oughtred. william oughtred (15741660) was one of theworld s great mathematicians. He attended Eton School and King s College, http://www.thocp.net/biographies/oughtred_william.htm

William Oughtred 5 March 1575 in Eton, Buckinghamshire, England 30 June 1660 in Albury, Surrey, England william oughtred principal papers Clavis Mathematicae (1631) Trigonometrie (1657 hardware sliderule software keywords sliderule related subjects Gunter; Mannheim; Delamain Achievement invented the slide rule Biography Oughtred's passion for mathematics was so great that he maintained a free school for young men interested in the science. A contemporary of Oughtred's, Edmund Gunter, devised a logarithmic rule in 1620, which could be used to multiply and divide using a pair of calipers. Oughtred was the first to see that a simpler and more sophisticated method of multiplication and division could be achieved by placing two logarithmic rules side by side and using the position of the numbers relative to each other to calculate the desired results. Oughtred's most important work, Clavis Mathematicae (1631), included a description of Hindu-Arabic notation and decimal fractions and a considerable section on algebra. He experimented with many new symbols including for multiplication and :: for proportion. Like all Oughtred's works it was very condensed containing only 88 pages. He also developed the circular slide rule, which operated in the same fashion as a linear slide rule, except that it makes use of an inner and an outer ring Oughtred published his renowned work Circles of Proportion and the Horizontal Instrument in 1632.

24. Biographies Of Computer Pioneers K-Z Osborne, Adam (1939- ) inventor of portable computers, Osborn I; oughtred,william. go to index computer pioneers. P. Packard, David; (1912-1996 http://www.thocp.net/biographies/biographies2.htm

Biographies Pioneers of computing K-Z This index mentions most of the computer pioneers and their inventions, or other important people in computers or computing industry. Due to the length of the index we have cut the index into two parts: [A-J] and [K-Z] you can navigate through both parts via the alfabeth icon (see below) from both pages; they have identical mappings. Sometimes a link will bring you to external sites, use the back button of your browser to come back. If you see in-active or un-linked pages, they are either under revision or will be added in the future. So come back often, or press the what's new hotspot on the main page Recently we have added a list of historic papers as they are referenced via the biographies, readers asked us to insert an index page for easier retrieval: Though we think this list to be fairly complete please if you find omissions K Kapor, Mitch (1950- ) developer of Lotus 1-2-3 along with Jonathan Sachs, and founded the Lotus Development Corp. in 1982, Kapor Enterprises Karmanos, Peter;

25. Oughtred, William oughtred, william. English mathematician, credited as the inventor of the sliderule in 1622. His major work Clavis mathematicae/The Key to Mathematics http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0020266.html

// Show bread crumbs navigation path. breadcrumbs('four'); //> From: www.tiscali.co.uk/reference/ ENCYCLOPAEDIA Hutchinson's Encyclopaedia Men's Health ... Wildlife Frames not supported Frames not supported Encyclopaedia Search Click a letter for the index A B C D ... Z Or search the encyclopaedia: Oughtred, William English mathematician, credited as the inventor of the slide rule in 1622. His major work Clavis mathematicae/The Key to Mathematics Related Links slide rule Dictionary of Computers, Multi-Media and the Internet - computer: chronology arithmetic right-angled triangle ... trigonometry Panama Flag The blue star signifies the purity and honesty of the life of the country. The red star represents authority and law. Effective date 4 June 1904. Buy Cheap Games Gran Turismo 4 Win £500 cash Volunteer to take part in our Tiscali survey and you could win £500 to spend on whatever you want. Print now Send to a friend Related articles Related products var st_pg=""; var st_ai=""; var st_v=1.0; var st_ci="762"; var st_di="d001"; var st_dd="st.sageanalyst.net"; var st_tai="v:1.2.3"; servePixl("REFERENCE.HOME"); //accipter 1x1 pixel

26. Russell, Bertrand Arthur William oughtred, william NEW Brain Teaser. Try our second Mensa brain teaser canyou beat our champion? Buy Mensa books. Cyprus Flag http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0013719.html

// Show bread crumbs navigation path. breadcrumbs('four'); //> From: www.tiscali.co.uk/reference/ ENCYCLOPAEDIA Hutchinson's Encyclopaedia Men's Health ... Wildlife Frames not supported Frames not supported Encyclopaedia Search Click a letter for the index A B C D ... Z Or search the encyclopaedia: Russell, Bertrand Arthur William English philosopher, mathematician, and peace campaigner. He contributed to the development of modern mathematical logic and wrote about social issues. His works include Principia Mathematica The Problems of Philosophy A History of Western Philosophy (1946). He was an outspoken liberal pacifist. He was awarded the Nobel Prize for Literature in 1950. He was made an Earl in 1931. Related Links Shaw, George Bernard Camus, Albert logic Hesse, Hermann ... Galsworthy, John Bolivia Flag Red stands for Bolivia's animals and the valour of the liberating army. Green symbolizes fertility. Yellow represents Bolivia's mineral deposits. Effective date c. Buy Cheap Games Gran Turismo 4 Win £500 cash Volunteer to take part in our Tiscali survey and you could win £500 to spend on whatever you want. Print now Send to a friend Related articles Related products var st_pg=""; var st_ai=""; var st_v=1.0; var st_ci="762"; var st_di="d001"; var st_dd="st.sageanalyst.net"; var st_tai="v:1.2.3";

27. Oughtred : Description oughtred, william (15751660) The description and use of the double horizontalldyall. London printed for william Leake, 1652. Image from oughtred s http://www.library.usyd.edu.au/libraries/rare/modernity/oughtred.html

introduction online exhibition early modern thought rare book library ... contacts ORIGINS OF MODERNITY mathematics Oughtred, William (1575-1660) The description and use of the double horizontall dyall. London : printed for William Leake, 1652. An English translation of William Oughtred's collection of mathematical recreations. The problems were mainly intended for amusement and the text includes descriptions of simple demonstrations of various phenomena.

28. Allmath.com - Math Site For Kids! Home Of Flashcards, Math oughtred, william. awtred. (15751660). Mathematician, born in Eton,Buckinghamshire, SC England, UK. He studied at Cambridge, and wrote extensively on http://www.allmath.com/biosearch.php?QMeth=ID&ID=23882

29. Gunter, Oughtred, And Bissaker Edmund Gunter, william oughtred, and Robert Bissaker Their lives and contributionsto the development of the computer. Click on the link you are interested http://www.cs.transy.edu/kylek/gunter.html

Edmund Gunter, William Oughtred, and Robert Bissaker Their lives and contributions to the development of the computer. Click on the link you are interested in: Edmund Gunter William Oughtred Robert Bissaker All about some slide rules: Buy all different kinds or Join the Oughtred Society International group dedicated to the history and collection of the slide rule (costs $35!) or Fool with one online Our Class Webpage Email the Author of this Website; me, Kyle Kuykendall All These guys are involved with the arithmetic machine we know as the slide rule. Gunter invented something like one based on Napier's logarithms, Oughtred invented the first actual slide rule, and Bissaker further enhanced that design, which stayed in use for hundreds of years. These all afffectd computing because of the mathematical capabilities that arose with use of their brainchild, the slide rule. Links

30. Smart Computing Encyclopedia Entry - Oughtred, William Smart Computing Encyclopedia Entry oughtred, william. http://www.smartcomputing.com/editorial/dictionary/detail.asp?guid=&searchtype=1

31. Smart Computing Article - Who’s Who In Computing Student of william oughtred who, in 1630, published the invention of the circularslide rule, an improvement on Edmund Gunter s Line of Numbers. http://www.smartcomputing.com/editorial/article.asp?article=articles/archive/r03

32. WILLIAM OUGHTRED - LoveToKnow Article On WILLIAM OUGHTRED oughtred, william (fl. 15751660), English mathematician, was born at Eton, andeducated there and at King s College, Cambridge, of which he became fellow. http://57.1911encyclopedia.org/O/OU/OUGHTRED_WILLIAM.htm

WILLIAM OUGHTRED OUGHTRED, WILLIAM (fl. 1575-1660), English mathematician, was born at Eton, and educated there and at King's College, Cambridge, of which he became fellow. Being admitted to holy orders, he left the university about 1603, and was presented to the rectory of Aldbury, near Guildford in Surrey; and about 1628 he was appointed by the earl of Arundel to instruct his son in mathematics. He corresponded with some of the most eminent scholars of his time on mathematical subjects; and his house was generally full of pupils from all quarters. It is said that he expired in a sudden transport of joy upon hearing the news of the vote at Westminster for the restoration of Charles II. He published, among other mathematical works, Clavis Mathe-matica, in 1631, in which he introduced new signs for certain mathematical operations (see ALGEBRA) ; a treatise on navigation entitled Circles of Proportion, in 1632; works on trigonometry and dialling, and his Opuscula Mathematica, published posthumously in 1676. CHARLES NICOLAS OUDINOT OUIDA (MARIA LOUISE DE LA RAMEE) To properly cite this WILLIAM OUGHTRED article in your work, copy the complete reference below:

33. Oughtred, William oughtred, william (15751660). william oughtred (1574-1660) was one of the world sgreat mathematicians. He attended Eton School and King s College, http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/O/Oughtred/1.htm

Oughtred, William William Oughtred (1574-1660) was one of the world's great mathematicians. He attended Eton School and King's College, receiving his M.A. in 1600. In 1603 he was ordained as an Episcopal minister. In the 17th century, becoming a clergyman was a common and well respected career option for a well educated man. Like many others of his day, Oughtred was likely not a formally trained mathematician, rather he was largely self-taught. He reputedly had a burning curiosity for mathematics and along with Harriot, he devised a standardized notation for algebra, some of which remains in use today. Oughtred's passion for mathematics was so great that he maintained a free school for young men interested in the science. A contemporary of Oughtred's, Edmund Gunter, devised a logarithmic rule in 1620, which could be used to multiply and divide using a pair of calipers. Oughtred was the first to see that a simpler and more sophisticated method of multiplication and division could be achieved by placing two logarithmic rules side by side and using the position of the numbers relative to each other to calculate the desired results. He also developed the circular slide rule, which operated in the same fashion as a linear slide rule, except that it makes use of an inner and an outer ring Oughtred published his renowned work

34. Roger Gaskell Rare Books william oughtred was the inventor of the slide rule, first in the circular form Literature PJ Wallis, ‘william oughtred’s Circles of Proportion and http://www.rogergaskell.com/catdocs/15048.htm

images OUGHTRED, William (1575–1660).. The circles of proportion and the horizontal instrument London printed by Augustine Mathewes, and are to bee sold by Nic: Bourne at the Royall Exchange Collation: Circles : A (–A1 +/–A2) B–X (+/–X4), 83 leaves, pp. [6] 152 [8]; [’An addition’]: A (–A1) B (+/–B4) C–H , 31 leaves, pp. 62; ‘To the English gentrie’: A–D , 16 leaves, pp. [32]. Errata to first work on X4v, errata slip for last work pasted to the foot of D4v. Woodcut headpieces and initials, full page woodcuts on S2r and X1r and 10 half-page woodcuts on the following 3 leaves, other small woodcut diagrams in the text, woodcuts on D2r and E4r of second work. Plates: 3 engraved plates, inserted facing B1r, Q1r and S2r (folded in at the fore edge). Condition 174 x 125mm. Fore edge of first plate defective with some loss of engraved surface, hole in the inner margin of A2 of second part affecting a few letters, margins of first and last few leaves strengthened with tissue, some browning and soiling throughout. Binding: Contemporary blind ruled unlettered sheep. Rebacked with the original spine laid down, corners repaired, boards worn and chipped.

35. William Oughtred Biography / Biography Of William Oughtred Biographies william oughtred Biography profile biographies life history. http://www.bookrags.com/biography/william-oughtred/

Search BookRags.com English History Other Subjects Essays Biographies Research Topics eBooks Register Login Help Literature Study Guides ... Games Welcome, Guest Why not Login or Register Biography Navigation William Oughtred Index Main Biography 1450 To 1699: Mathematics Biography How to Cite Order the PDF Home Biography William Oughtred Biographies Complete Biographical Resource See related items by keyword: king cambridge cambridge university scholar ... career options Name: William Oughtred Birth Date: March 5, 1574 Death Date: June 30, 1660 Place of Birth: Eton, Buckinghamshire, England Place of Death: Albury, Surrey, England Nationality: English Gender: Male Occupations: mathematician, clergyman, educator William Oughtred Biographies The following biographies focus on different aspects of William Oughtred's life and work. All biographies listed are included in the William Oughtred Biography Pass. Main Biography (6.2 pages) 1450 To 1699: Mathematics Biography (1.4 pages) William Oughtred Biography Each biography is written by a biographical expert, professional educator, or scholar of the individual. Get the William Oughtred Biography About Customer Service Report an Error ... Argos

36. William Oughtred -- Facts, Info, And Encyclopedia Article william oughtred. Categories Old Etonians, 17th century mathematicians, 16thcentury william oughtred (March 5, 1575 – June 30, 1660) was an (An http://www.absoluteastronomy.com/encyclopedia/W/Wi/William_Oughtred.htm

William Oughtred [Categories: Old Etonians, 17th century mathematicians, 16th century mathematicians, English mathematicians, Computer pioneers, English inventors, 1660 deaths, 1575 births] William Oughtred (An Indo-European language belonging to the West Germanic branch; the official language of Britain and the United States and most of the Commonwealth countries) English (A person skilled in mathematics) mathematician . He is credited as the inventor of the (Analog computer consisting of a handheld instrument used for rapid calculations; have been replaced by pocket calculators) slide rule (A multiplicative increase) multiplication as well as the abbreviations "sin" and "cos" for the (Ratio of the opposite side to the hypotenuse of a right-angled triangle) sine and (Ratio of the adjacent side to the hypotenuse of a right-angled triangle) cosine functions. Oughtred was born at (Click link for more info and facts about Eton) Eton , and educated there and at (Click link for more info and facts about King's College, Cambridge) King's College, Cambridge

37. Trove.net -- Letter From Robert Austin To William Oughtred. Recto Letter from Robert Austin to william oughtred. recto Title, Letter fromRobert Austin to william oughtred. recto. Date, December 3, 1652 http://www.trove.net/UKCG0001/UKCG0001_001370.html

var infoWindow = null rcmid = "UKCG9597%2F13%2F5%2F19" var indexstockid = "" var services = "" google_ad_client = "pub-5164864806125161"; google_alternate_color = "8A94AD"; google_ad_width = 120; google_ad_height = 600; google_ad_format = "120x600_as"; google_ad_channel =""; google_color_border = ["A6ADC0","8A94AD"]; google_color_bg = ["A6ADC0","8A94AD"]; google_color_link = "000000"; google_color_url = ["0000CC","CCCCFF"]; google_color_text = "333333"; Search Trove.net Letter from Robert Austin to William Oughtred. recto Please choose: Research For academic or research use, go to RLG Cultural Materials Publishing or Advertising For publishing or advertising use, go to Index Stock Imagery (coming soon) Personal or Business Use For personal or small business use, go to Photos To Go (coming soon) Title: Letter from Robert Austin to William Oughtred. recto Date: December 3, 1652 Creator: Robert Austin Collection: Isaac Newton Manuscripts Contributed by: University of Cambridge Keywords: England Physical sciences Mathematics and statistics Search for books in RedLightGreen: RLG Home Comments

38. Trove.net -- Letter From Robert Austin To William Oughtred. Verso Letter from Robert Austin to william oughtred. verso Title, Letter fromRobert Austin to william oughtred. verso. Date, November 1, 1653 http://www.trove.net/UKCG0001/UKCG0001_001424.html

var infoWindow = null rcmid = "UKCG9597%2F13%2F5%2F20" var indexstockid = "" var services = "" google_ad_client = "pub-5164864806125161"; google_alternate_color = "8A94AD"; google_ad_width = 120; google_ad_height = 600; google_ad_format = "120x600_as"; google_ad_channel =""; google_color_border = ["A6ADC0","8A94AD"]; google_color_bg = ["A6ADC0","8A94AD"]; google_color_link = "000000"; google_color_url = ["0000CC","CCCCFF"]; google_color_text = "333333"; Search Trove.net Letter from Robert Austin to William Oughtred. verso Please choose: Research For academic or research use, go to RLG Cultural Materials Publishing or Advertising For publishing or advertising use, go to Index Stock Imagery (coming soon) Personal or Business Use For personal or small business use, go to Photos To Go (coming soon) Title: Letter from Robert Austin to William Oughtred. verso Date: November 1, 1653 Creator: Robert Austin Collection: Isaac Newton Manuscripts Contributed by: University of Cambridge Keywords: England Physical sciences Mathematics and statistics Search for books in RedLightGreen: RLG Home Comments

39. Science And Society Picture Library - Search Picture of william oughtred, English mathematician, 17th century. Engraving ofwilliam oughtred (15751660) who wrote extensively on mathematics. http://www.scienceandsociety.co.uk/results.asp?image=10199020&wwwflag=2&imagepos

40. Science And Society Picture Library - Search Picture of william oughtred, English mathematician, 1646. william oughtred (15751660)was born in Eton, Buckinghamshire and attended Eton school before http://www.scienceandsociety.co.uk/results.asp?image=10400496&wwwflag=2&imagepos

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