comrie leslie john (8 risultati)

Blue Cloth. Condizione: VERY GOOD ( AVERAGE). Reprint. This book is part of a large purchase from a Public Sector Library and except where mentioned are for the most part LIKE NEW! MOSTLY the ONLY flaws are the blacked out (they insisted) Library stamps which show many of them to be UNUSED! This copy is Very Good (AVERAGE) FEEL FREE TO E-MAIL FOR PHOTOGRAPHS AND FURTHER DETAILS. FROM A DEALER WHO TELLS YOU WHO THEY ARE AND WHAT THEIR TELEPHONE AND ADDRESS CONTACT DETAILS ARE! Size: 4to - over 9¾" - 12" tall. EX PUBLIC SECTOR LIBRARY BLACK.

Hardcover. Condizione: Good. No Jacket. 1st. 576/576pp in TWO volume, w/full markings, pocket, and/or bookplatewear/soil. Weight is 6.25 lb. Will not fit in Flat Rate Priority Mail envelope. USPS Variable Rate applies for Domestic or International. Ex-Library Size: 4to Size: 4to - over 9¾ - 12" tall. Ex-Library.

LeatherBound. Condizione: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 40. A perfect gift for your loved ones. Reprinted from 1931 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: English Pages: 40.

Paperback. Condizione: VG+. 1st Edition. Publishers pale grey printed wrappers (slightly dust marked). Label announcing a meeting originally glued to upper wrapper now loosely inserted. Else Book is in very good plus condition with very minor signs of wear and/or age.

Soft cover. Condizione: Near Fine. 1st Edition. 8vo, 13 pages, numbered [447] to 459, one plate illustrated on both sides, excellent copy centre-stitched in original printed wraps.VG+.

Wraps. Condizione: Near Fine. First Edition. First Edition. We offer a nearly complete run of this important early computer serial: Numbers 1, 2, 5-59, 66-70, each in the original wrappers as published. Small quarto and octavo sizes, approx 12 inches shelf space. Occasional minor soiling. From the library of Frank M. Verzuh, with his name on some covers. Wraps. MTAC is the first period journal devoted entirely to the literature of computation. The journal had a very small subscription base in the early years. Through 1946, it's subscription list was less than 350 readers. Many were discarded as computing advanced at a rapid pace. As of this writing, Worldcat shows less than 80 institutions with even partial runs. The first volume contains lists and descriptions of printed tables, where they were published, as well as new errors discovered in the published sources. These errors, introduced by humans whose job description were "computers", continued to appear until mechanical computers significantly reduced and eventually eliminated them. Large businesses, military and financial operations used these tables to save time - so error notices were important. Later issues particularly in Volume 2 of this serial) contained interesting and groundbreaking material related to the development of computers as we know them today. Previous owner Professor FM Verzuh attended the Moore School lectures and was a participant in early computering at MIT. The fact that this serial was still present on his shelf at his retirement is an indication of it's importance. Scarce in the marketplace. See Origins of Cyberspace 777 for a detailed description and history of the serial, which was published in a total of 14 volumes until a title change in 1960. Important articles included in this run include Origins of Cyberspace 577, 579, 1077, and 1078. "MTAC remains the primary periodical source of information on the electromechanical and electronic digital computers designed and built during the late 1940s and early 1950s, as well as on the scientific uses of punched-card machines, mechanical desk calculators, etc" It also served as a journal of record for the newly formed Association of Computing Machinery until the founding of their own journal in January 1954.

Comrie, Leslie John (1893-1950). Mathematical tables. Offprint from Monthly Notices of the Royal Astronomical Society 92 (February 1932). [2], [339]-347 [1]pp. 255 x 173 mm. Original gray printed wrappers, a bit sunned. First Edition. "The new tables reflect the modern tendency towards the use of calculating machines in three ways-first, by the extensive use of machines in their making, as reported in prefaces; secondly, by the fact that logarithmic values are tending to be superseded by natural; and thirdly, because the possession of a machine is virtually assumed in tables of special functions, where a wide interval is used and several even orders of differences provided" (p. 339). Origins of Cyberspace 264.

Comrie, Leslie John (1893-1950). The application of the Hollerith tabulating machine to Brown's tables of the moon. Offprint from Monthly Notices of the Royal Astronomical Society 92 (May 1932). [1], [694]-707, [1]pp. 3 plates, text illustrations. 257 x 173 mm. Original gray printed wrappers, slightly worn. Very good. First Separate Edition. Comrie pioneered the use of commercial accounting machines in scientific applications, especially in the production of mathematical tables. The above offprint describes the first use of a punched-card tabulating system in a purely scientific application-calculating the position of the moon at noon and midnight from 1935 to the end of the twentieth century (punched-card tabulators, invented by Herman Hollerith in the 1880s, reigned as the primary means of large-scale data processing prior to the advent of the electronic digital computer). Punching the half-million cards needed for this enormous calculating project took six months, and the calculations, performed at Britain's Nautical Almanac Office, took an additional seven months to complete. The American astronomer E. W. Brown, whose Tables of the Motion of the Moon (1919) supplied the necessary data, was an observer of the process. "Comrie often recalled the 'ecstacies of rapture' with which Brown watched the addition of his own figures at the rate of 20 or 30 a second. The enthusiasm with which Professor Brown described the process of his return to America probably stimulated W. J. Eckert, the leading American pioneer, in the application of these machines to scientific calculations" (Bowden, Faster than Thought, p. 26). Origins of Cyberspace 266. .