Hartree douglas rayner (7 risultati)
- Rilegato
Da: Antikvariat Faust, Göteborg, SveziaAntikvariat Faust
Contatta il venditoreVenditore con 4 stelleCondizione: Usato
EUR 23,50
EUR 22,00 spedizioneSpedito da Svezia a U.S.A.Quantità: 1 disponibili
Aggiungi al carrelloClarendon Press, Oxford 1955. Second printing. xiv, 287 pp. Publisher's cloth. Bookplate. Fine condition.
Altre immaginiLingua: Inglese
Editore: The Royal Institution, London, 1944
- Brossura
- Prima edizione
Da: Boris Jardine Rare Books, Edinburgh, Regno UnitoBoris Jardine Rare Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato - Quasi ottimo
EUR 601,06
EUR 20,95 spedizioneSpedito da Regno Unito a U.S.A.Quantità: 1 disponibili
Aggiungi al carrelloSoft 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 p…ioneering 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.
Lingua: Inglese
- Rilegato
- Print on Demand
Da: S N Books World, Delhi, IndiaS N Books World
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 26,72
Spedizione gratuitaSpedito da India a U.S.A.Quantità: 18 disponibili
Aggiungi al carrelloLeatherbound. 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.
Editore: University Press, 1938., In: Proceedings of the Cambridge Philosophical Society, Vol. 34, 1938. Cambridge:, 1938
- Rilegato
Da: Jeff Weber Rare Books, Neuchatel, NEUCH, SvizzeraJeff Weber Rare Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato
EUR 111,38
EUR 25,00 spedizioneSpedito da Svizzera a U.S.A.Quantità: 1 disponibili
Aggiungi al carrello254 x 181 mm. Tall 8vo. Pages 550-558. [Entire volume: viii, 645, [2] pp.] 4 tables. Quarter navy morocco, morocco corners, raised bands, gilt spine; spine lightly faded. Blind stamp of the Carnegie Institution of Washington, Mount Wilson Observatory. Fine. "Hartree and his collaborators evaluated wave functions for more than tw…enty-five different atomic species in various states of ionization. Through his stimulus and encouragement many more atoms were investigated by physicists throughout the world. Hartree's equations as generalized by V. Fock proved to be extremely valuable in theoretical calculations in sold state physics." DSB, VI, p. 147.
Editore: Clarendon Press, 1952., Oxford:, 1952
- Rilegato
- Prima edizione
Da: Jeff Weber Rare Books, Neuchatel, NEUCH, SvizzeraJeff Weber Rare Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato
EUR 200,48
EUR 25,00 spedizioneSpedito da Svizzera a U.S.A.Quantità: 1 disponibili
Aggiungi al carrello8vo. xiv, 287 pp. 31 figs., bibliog., index. Navy cloth, gilt spine, dust-jacket. Ownership rubber stamps of Robert L. White. Fine. FIRST EDITION. "Calculation originally, and over a long period, meant numerical calculation â" the repertoire of arithmetical operations such as addition, subtraction, multiplication and division, a…nd procedures such as extraction of square roots, which could be applied to arbitrary numbers: integers, fractions, and rational, irrational and transcendental numbers. Subsequent developments of such procedures into powerful methods for the solution of general mathematical problems in numerical terms came to known, in English, as numerical analysis." Ifrah, The universal history of computing, p. 69. DSB, VI, p. 148.
Altre immaginiEditore: G. Bell and Sons, London, 1938
- Rilegato
- Prima edizione
Da: Boris Jardine Rare Books, Edinburgh, Regno UnitoBoris Jardine Rare Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato - Molto buono
EUR 240,42
EUR 20,95 spedizioneSpedito da Regno Unito a U.S.A.Quantità: 1 disponibili
Aggiungi al carrelloHardcover. Condizione: Very Good. 1st Edition. 8vo; pp. xiii, 528; Hartree pp. 342-364 [whole volume offered]. A MECCANO DIFFERENTIAL ANALYZER. Hartree's important account of the 'differential analyser' with photographs of the Manchester analyser, and Hartree's pioneering Meccano model. The most comprehensive of the early essays… on the differential analyser, with diagrams and photographs illustrating the design, accounts of the use and applications of the machine, and a useful bibliography. 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. Very good condition: not ex-library; spine with a 5mm split at the top, otherwise very good; internally clean and unmarked throughout; barely noticeable foxing to a handful of page edges, not affecting the Hartree essay. References: not in Origins of Cyberspace, but see no 317.
Self-consistent field, including exchange and super-position of configurations, with some results for oxygen OFFPRINT from Philosophical Transactions of the Royal Society of London, Series A, Mathematical and Physical Sciences, Number 790, Volume 238, pp. 229-247, 24 July 1939
Hartree, D.R. [Douglas Rayner]; Hartree, W.; Swirles, Bertha
Editore: Royal Society, London, 1939
- Prima edizione
Da: Atticus Rare Books, West Branch, IA, U.S.A.Atticus Rare Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato
EUR 289,58
EUR 8,22 spedizioneSpedito in U.S.A.Quantità: 1 disponibili
Aggiungi al carrello1st 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.
