douglas hartree (56 risultati)

Condizione: New. pp. 152.

Condizione: New. pp. 152.

Condizione: New. pp. 152.

Hardcover. Condizione: Good. xiv 287p navy hardback, somewhat scuffed and faded boards, spine with old library marks, from a Cambridge college library, text clean with odd light pencil marks, binding still tight, hinges a bit rubbed Language: English.

Hardcover. Condizione: UsedGood. Hardcover; based on lectures given under the auspices of the William Pyle Philips Fund of Haverford College 1955; surplus library copy with the usual stampings and reference number affixed to the spine; fading and shelf wear to exterior; bump to the upper corners; otherwise in good condition with clean text and tight binding.

paperback. Condizione: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

Hardcover. Condizione: Fair. First edition. 181p. Ex-library. A navy blue cloth hardcover book in good condition. Call number on spine, labels on back cover, stamps on foredges, and a few stamps inside. Otherwise clean and tight. A volume in the STRUCTURE OF MATTER series.

Hardcover. Condizione: Good. xiv 287p original cloth worn with age and use, with the chapter on Organisation of Calculations for an Automatic Machine, from a Cambridge college library with signs of wear Language: English.

Hardcover. Condizione: Good. Condizione sovraccoperta: No Dust Jacket. Reprint Edition. Hardcover. An ex-library copy in original maroon cloth lettered in gold. The usual ex-libris markings. The binding is sound, the text is clean/unmarked, and there is little cover wear. This scholarly reprint edition with a new Introduction by Maurice V. Wilkes. No dust jacket. Book.

Hardcover. Condizione: Good. 1st Edition. Hartree, Douglas R. Calculating Instruments and Machines. University of Illinois Press, 1949. First edition. Ex-library, with stamps on the front and rear free endpapers and pastedowns. Call number on white strip on spine. GOOD copy, only (4 out of 10). This is a reading copy of this classic work, a packed 138 pages of historical register and current achievements, very readable, and pretty technical. Also has a valuable 122-item bibliography/note section which is very useful. A must-have if you're into the history of computers.

Paperback. Condizione: Brand New. reissue edition. 138 pages. 9.50x6.75x0.50 inches. In Stock.

Hardcover. Condizione: Very Good. Condizione sovraccoperta: Fair. 137 pages, 4to. Shelfwear to DJ: scuffing along edges and covers, large missing pieces on rear cover, smaller tears and missing pieces along edges and spine. Foxing and tanning on inside covers and endpapers, foxing along page edges. Volume is in Very Good-minus condition. DJ in Fair condition.

Condizione: New. pp. 150.

Paperback. Condizione: Brand New. 154 pages. 8.98x5.98x0.71 inches. In Stock.

Condizione: Good. Octavo: [8], 138pp. Good copy in original cloth.

Hard Cover. Condizione: Very Good+. First Edition. First Edition Second Printing (1953) stated in black-stamped brown cloth, no text markings, NOT ex-lib, no dj, binding tight pages bright, slight edge wear to boards, offsetting to endpaper gutters, from collection of UCLA mathematician Nathaniel Grossman with his neat name to front endpaper, a clean tight copy of this pioneering work of early computing by the famed Cambridge mathematician; 8vo; (ix) 138pp indexed & illus.

Condizione: New. This 1950 book was based on a short series of lectures given by the author at the University of Illinois in 1948. Aimed at the non-specialist, the chief aim of the text was to provide a general introduction to contemporary developments in the field of calcu.

Clarendon Press, Oxford 1955. Second printing. xiv, 287 pp. Publisher's cloth. Bookplate. Fine condition.

Soft cover. Condizione: Good. No Jacket. First. 138pp, wear, soil, Weight is 1.5 lb. W/full markings and pocket. Has/may have some pages stuck on the edge of the top margin due to some unintelligent using stencil ink (Paint) to blot out the library edge marking. Frayed edges/cnrs, paint stains on both cvrs. Ex-Library Size: 8vo. Book.

Hardcover. Condizione: Very Good. xiv 287p cloth, dustjacket (small tear), with an important chapter on Organisation of Calculations for an Automatic Machine, this copy was formerly owned by Prof Cassells of Cambridge Language: English.

Taschenbuch. Condizione: Neu. Neuware - This 1950 book aimed to provide a general introduction to contemporary developments in the field of calculating instruments and machines.

Hardcover. Condizione: Near Fine. Condizione sovraccoperta: Near Fine. 1st Edition. First Edition. xiv, 287, [1] pp; 31 figs. Original cloth, 8vo. Upper corner of front cover bumped. Signature on pastedown. Else Very Good+, in very good dust jacket (unclipped). "Hartree's chief contribution to science was his development of powerful methods of numerical mathematical analysis, which made it possible for him to apply successfully the so-called self-consistent field method to the calculation of atomic wave functions of polyelectronic atoms, that is, those which in the neutral condition have more than one electron surrounding the nucleus. These calculations involved the numerical solution of the partial differential equations of quantum mechanics for many-body systems subject to the usual boundary conditions" (D. S. B. 6: 147). Chapter 12 is "Organization of Calculations for an Automatic Machine" (pp. 255-273).

Paperback. Condizione: Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

IX, 138 pp. with a lot of illusrations, Sprache: Englisch Gewicht in Gramm: 510 Groß 8°, Original-Leinen (Hardcover), Bibliotheks-Exemplar (ordnungsgemäß entwidmet), Stempel auf Titel, insgesamt gutes und innen sauberes Exemplar, (library copy in good condition),

hardcover. Condizione: Good. Good. Dust Jacket NOT present. CD WILL BE MISSING. . SHIPS FROM MULTIPLE LOCATIONS. book.

Soft cover. Condizione: Near Fine. 1st Edition. Pamphlet in self-wraps, as issued, 216 x 139mm; pp. 1-[30]. EXCEPTIONALLY SCARCE SEPARATE PRINTING OF HARTREE'S IMPORTANT LECTURE ON THE DIFFERENTIAL ANALYZER Hartree's comprehensive lecture on the 'differential analyser' with photographs of the Manchester analyser, and Hartree's pioneering Meccano model. The Differential Analyser was invented by Vannevar Bush, and first described in print in 1931; Bush's invention was the culmination of a line in computer design that goes back to the work of James and William Thomson (Lord Kelvin), most famously the latter's tide-predicting machine. The Differential Analyser was hugely successful, circulating around the world via the unconventional medium of the children's construction-set Meccano. Near fine condition: staples slightly rusty, otherwise in exceptional condition. Just a single copy located on OCLC, at the University of Waterloo Libraries. Not in Origins of Cyberspace.

paperback. Condizione: Very Good. First Edition. 1947 Cambridge University Press first edition, small format softcover with French flaps. Light chip to spine. Bottom corner front flap is clipped. No marks. Please email for photos. Larger books or sets may require additional shipping charges. Books sent via US Postal.

Condizione: Fair. Manchester 1933 first edition. Memoirs and Proceedings of Manchester Literary & Philosophical Society 1932-33. Original pale blue printed wraps. octavo. Hartree articles on pp. 69-90 and 91-107. Hartree's work in numberical analysis contributed to development of calculators and computers. Cover Fair, creased and worn with light chipping; text near Fine, clean and bright. Institute stamp on cover. no other ownership marks.

Leatherbound. Condizione: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. 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. A perfect gift for your loved ones. Reprinted from 1953 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 and contains approximately 48 pages. 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.

Hardcover. Condizione: Very Good EX-LIBRARY. Condizione sovraccoperta: No jacket. First Edition. New York / London:: John Wiley & Sons, Inc. / Chapman & Hall, Limited, 1957. A solid copy. Square and reasonably tight. Inner hinges are sound. WITHDRAWN stamp, and a few other library markings. Text pages are clean. No underlining. No highlighting. No margin notes. Illustrated with figures/diagrams. Tables. Graphs. Bibliographical references. Three appendices. Name Index. Subject Index. Bound in the original dark blue cloth. A volume from the STRUCTURE OF MATTER SERIES, Maria Goeppert Mayer, advisory editor. . First Edition. Hard Cover. Very Good EX-LIBRARY./No jacket. 8vo. xiii, 181pp.