HARTREE, DOUGLAS R (34 résultats)

Etat : New. pp. 152.

Etat : New. pp. 152.

Etat : New. pp. 152.

Hardcover. Etat : Near Fine. 1st Edition. (Physics) THE CALCULATION OF ATOMIC STRUCTURES. by Douglas R. Hartree. First edition, NY & Ldn, 1957. 8vo size book, black clth binding, spine titles somewhat dull o/w fine. 181-pages of text, some owner underlining and markings.

Hardcover. Etat : 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.

Hardcover. Etat : 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.

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

Hardcover. Etat : 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.

Hard Cover. Etat : Good. No Jacket. Reprint. From an academic library with the usual stamps etc. A00021762.

Etat : New. pp. 150.

Hardcover. Etat : Good. Dust Jacket Included.

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

Hard Cover. Etat : 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.

Hardcover. Etat : Near Fine. Etat de la jaquette : 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).

Etat : Akzeptabel. Formateinband: Leinen / gebundene Ausgabe XVI, 302 S. (24,5 cm) Reprint of the 2nd edition; Exemplar aus Institutsbibliothek mit Standortschild am Rücken, Stempel u. kl. Barcodeklebern, mit Klarsichtfolie überzogen; sonst in gutem Zustand. Sprache: Englisch Gewicht in Gramm: 950 [Stichwörter: Numerische Analysis].

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

Leatherbound. Etat : 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. Etat : Very Good EX-LIBRARY. Etat de la jaquette : 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.

Cloth. Etat : Near Fine. No Jacket. 1st Edition. This is a near fine hardcover first edition, second printing copy in brown cloth binding no DJ. From a Library, marked only with the spine call number. Photos on request.

Hard Cover. Etat : Very Good. Etat de la jaquette : Poor. First Edition. Previous owner's name to front pastedown. Wrapper is creased rubbed and thumbed with several areas of significant loss. OX3419.

rilegato. Etat : Ottimo (Fine). in ottavo Ottimo (Fine) Libro usato proveniente da collezione privata.La copertina riporta piccole tracce d'uso. Le pagine risultano lievemente imbrunite dal tempo. All'interno in ottime condizioni. Book.

Hardcover. Etat : Very Good. Etat de la jaquette : Good. First Edition. Very good hardback copy in slightly shelfworn dustjacket. ix, 138pp., b/w illustrations Size: 9.75" x 6.5" (25x17cms). Book.

Cloth. Etat : Good. Etat de la jaquette : Good. 1st Edition. With a moisture stain at the top of the text block, otherwise a VG hardcover first edition copy in brown cloth binding in a mylar protected DJ that is chipped and taped, black spine.

Hardcover. Etat : very good. First Edition. This book was based on a short series of lectures given by the author at the University of Illinois in 1948. Intended as a general introduction illustrated by Hartree's personal experiences working with ENIAC and the Harvard Mark I, a pioneering work with calculating instruments and machines. Author's first book. Douglas Rayner Hartree FRS was an English mathematician and physicist most famous for the development of numerical analysis and its application to the Hartree Fock equations of atomic physics and the construction of a differential analyzer using Meccano. Boards with light edge-wear. First Edition. 7" - 10". Book.

FINE IN A GOOD+ D.J. ALONG WITH EDMOND BERKELEY'S "GIANT BRAINS OR MACHINES THAT THINK" GENERALLY CONSIDERED THE SEMINAL BOOKS ON COMPUTERS. LIGHT BROWN CLOTH COVERED BOARDS WITH DARK BROWN SPINE TITLES. BOOK IS FINE WITHOUT ANY MARKS TO THE BINDING OR THE TEXT. TATTERED D.J. HAS QUITE A BIT OF EDGE WEAR WITH SOME CHIPPING TO THE EDGES, THE LARGEST A 1 1/4" SQUARE PIECE MISSING AT THE REAR PANEL'S LOWER FORE-EDGE CORNER, SOME MODERATE RUB TO THE FACE OF THE PANELS AND FORE-EDGE RUBBED, AND IS NOT PRICE-CLIPPED. A NICE COPY OVERALL WITH A D.J. ABOUT 95% PRESENT. ORIGINALLY PUBLISHED IN 1949 BOTH FIRST AND SECOND PRINTINGS ARE VERY SCARCE. SECOND PRNTG edition. Binding is HARDCOVER.

Hardcover. Etat : Very Good. Hartree, Douglas R. "The ENIAC, an Electronic Computing Machine." Macmillan & Co., London, 1946. In "Nature", Vol 158. July - December, 1946. (52), 956pp, illustrations throughout the text, with the Hartree on pp 500-506, illustrated with three photos including the famous one appearing on page 501showing most of the machine. First printing of the "first paper on an electronic digital computer published in a large-circulation international scientific journal ["Nature"]."--Jeremy Norman's Origins of Cyberspace, 648. [++] The volume is fresh and clean though there are two binding semi-minor issues: first, the cloth boards are a bit thin for a book this size so the front board is slightly bowed. Second, the hinges are starting to break, though it is at this point the paper of the pastedowns and free endpapers that are broken (see pic). Overall, I'd say that this was still a Very Good copy (6/10) [++] The ENIAC (Electronic Numerical Integrator and Computer built 1943-45) was the first large-scale, fully electronic, general-purpose digital computer to operate successfully. It was a decimal non-specific general purpose numerical machine, programmable by physical configuration (via plugboards, switch settings, cable routing). [++] Hartree writes a great introduction to the machine and then proceeds in explaining it to the advanced-general reader. The subheads include "two main classes f computing equipment"; "arithmetical processes, memory, and organisation"; general construction of the ENIAC"; accumulator"; "multiplier"; "divider and square rooter"; "function tables, input and output equipment"; "master programmer"; "set-up and use"; "examples". This is a very well organized and highly readable and important paper.

Hardcover. Etat : very good. first edition. First printing of this critical work in the history of computing and a foundational text that launched a circulation through an international scientific journal. In "Nature", Vol 158. October - December, 1946. Entire volume offred with ENIAC [Electronic Numerical Integrator And Computer] article Pp. 500-506. [Entire volume: Pp. 459-956]. Hartree, a British mathematician, first learned of ENIAC in 1945, when he saw the as-yetuncompleted machine during a visit to the Moore School at the University of Pennsylvania. It was here that this first general-purpose Turing complete digital electronic computer, was built between 1943 and 1946. The first computer course was given at the Moore School in Summer 1946, leading to an explosion in computer development all over the world. Hartree was a participant in the lectures, advising on nonmilitary uses of the ENIAC while being the first Englishman to work with the machine. Later, Hartree helped stimulate the development of more powerful computers like Cambridge University's EDSAC. The ENIAC was 10 feet high, and 3 deepand contained 18,000 vacuum tubes, about 70,000 resistors, 10,000 capacitors, and 6,000 switches. It consumed 140 kilowatts, so much power that when operated the lights in a nearbytown dimmed. Royal 8vo bound in contemporary cloth. Provenance: Bookplates stamps on front free end-papers of the University of Oxford. Near fine and clean. 7½" - 10". book.

(29,5 x 21 cm). 12 S. Mit 8 Abbildungen. Original-Broschur. (Sonderdruck aus: Zeitschr. für angew. Mathematik und Mechanik). Erste Ausgabe eines Vortrags für die Jahrestagung der Gesellschaft für angewandte Mathematik und Mechanik in Darmstadt. - Es werden u.a. die Rechner Mark I, Eniac und EDSAC beschrieben. - Wohlerhalten. - DSB 6, 147.

1st Edition. FIRST EDITION OFFPRINT OF DOUGLAS HARTREE'S DEVELOPMENT OF THE "SELF-CONSISTENT FIELD METHOD TO THE CALCULATION OF ATOMIC WAVE FUNCTIONS OF POLYELECTRONIC ATOMS" (Dictionary of Scientific Biography, VI, 147). "Hartree played a fundamental role in the field of twentieth-century numerical analysis and its application to theoretical physics" (ibid). "The mid- to late 1920s was a time of great change and excitement in theoretical physics, and Hartree was becoming a well-known figure in the field. When news of Erwin Schrödinger's work on wave mechanics reached Cambridge, Hartree was ideally placed to make a contribution.His experience of numerical integration of differential equations, gained during his ballistics work in World War I, was invaluable. Hartree was able to develop and apply numerical techniques to the solution of increasingly complex atomic structures" (ibid). By 1939 and with the publication of this paper, Hartree made "his chief contribution to science. 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. From the atomic wave functions it is possible to calculate the average distribution of negative electric charge as a function of distance from the nucleus. If the distribution has been correctly found for all the electrons in the atom under study, the electric field due to this distribution should lead to the original distribution, in which case the field is called self-consistent" (ibid). Note that one of the co-authors, Bertha Swirles, was a British physicist who carried out research on quantum theory, particularly in its early days. CONDITION & DETAILS: Complete. 4to. (12 x 9 inches, 300 x 225mm). Continuously paginated 229-247. Very light stamp of Yale Medical Library on the front wrap; armorial bookplate on rear of front wrap followed by a small paste on "Ex-Libris Harvey Cushing", the pioneering neurosurgeon for whom the library is named. Bound in original paper wraps with a bit of minor aging. Tightly bound. Pristine throughout. Very good.

Large 8vo, pp. lii, 956. Black buckram, spine lettered in gilt, library bookplate. The whole volume is offered, of which Hartree?s paper occupies pp. 500?506, with 3 photographic illustrations. FIRST EDITION. ?The first paper on an electronic digital computer published in a large-circulation international scientific journal.? Hartree, a British mathematician, first learned of ENIAC in 1945, and the following year became the first Englishman to work with the machine. ?He was the first to bring news of ENIAC to Great Britain, publishing the above article in Nature shortly after his return from the United States.? Hook & Norman, Origins of cyberspace, 648.