Hartree r (61 risultati)

Condizione: New. pp. 152.

Condizione: New. pp. 152.

Condizione: New. pp. 152.

Paperback. Condizione: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Condizione: Good. 1958. Second Edition. 302 pages. Illustrated dust jacket over blue cloth boards. Gilt lettering. Ex-Library copy, with expected inserts, stamps and inscriptions. Clean pages with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Pen inscription to front free endpaper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is bright and clear. Minor wear marks to boards. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Moderate tape repairs to interior jacket. Moderate tanning and wear marks to flaps, panels and spine.…

Hardcover. Condizione: Very Good. Second edition of a great classic. 302pp. Cloth. Near-fine copy.

Hardcover. Condizione: UsedGood. Hardcover; based on lectures given under the auspices of the William Pyle P hilips 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 cl ean text and tight binding. …

Condizione: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1000grams, ISBN.…

Hardcover. Condizione: Good. Condizione sovraccoperta: Good. 1st Edition. First edition, first impression. xx, 526pp, with calculations and figures in text. Orange cloth-covered boards, gilt lettering on black relief on spine. 8vo. Cloth a little rounded at spine ends, bumped on the lower leading corner. Some dustiness and toning to text block edges. Previous owner's name neatly inked on the front free endpaper else internally neat, clean and tight. In its original worn dust wrapper, rubbed, bumped and scuffed at edges, shelf worn, mildly toned around edges.…

1st. Edn. pp. xiv, 287. A very good plus hardback copy in the original dark blue cloth. No wrapper.

Paperback. Condizione: Fine. 128pp, illustrated, SIGNED by author on title page, AS NEW; quarto; 128 pages; Signed by Author.

Softcover. Condizione: very good. Time-Lag in a Control System: "It often happens in physical experiments and in technical processes that there is some physical quantity, subject to random disturbances, which it is required to keep as nearly constant as possible by the operation of some controlling gear. For example, it may be required to keep a room, or a reaction vessel, at a constant temperature by controlling the electric current passing through a heating coil, or steam passing through heating pipes, or the operation of a heating or cooling engine. The operation of the controlling gear could be by trial and error, but it may often be desirable that it shall be made to depend in some definite way on the behaviour of the physical quantity to be controlled (controlling gear); and the apparatus employed (control apparatus). The two together comprise the Control System." No. 756. Volume 235. pp. 415-444. Co-authored by: A. Callender of the Research Department, I.C.I (Alkali) Limited, D.R. Hartree, F.R.S. and A. Porter of the University of Manchester. Darkening around the edges. 9" - 12". Book.…

Hardcover. Condizione: UsedGood. Hardcover, 2nd edition; surplus library copy with the usual stampings; refe rence number written on spine; type faded on spine; bar code on back cover; fading and shelf wear to exterior; book plate inside front board; otherwis e in good condition with clean text, firm binding. …

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.

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. Dust jacket in poor condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,900grams, ISBN.…

Condizione: Good. London 1939. Offprint from the Philosophical Transactions of the Royal Society of London. Series A, No. 790, Vol. 238. Lg.4to., pp.229-247, wraps. Good plus, light wear, no owner marks.

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.…

First Edition.. 287 Seiten, Sprache: Englisch Gewicht in Gramm: 760 Groß 8°, Original-Leinen (Hardcover), Bibliotheks-Exemplar (ordnungsgemäß entwidmet) mit leichten Kleberückständen vom Rückenschild, Stempel auf Titel, Einband leicht lichtrandig und minimal fleckig, insgesamt gutes und innen sauberes Exemplar.…

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,600grams, ISBN.

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,550grams, ISBN.

Hardcover. Condizione: Near Fine. Condizione sovraccoperta: Good. New impression. 287pp. Pages lightly age-toned, owner's name penned on front fly, very good in a good only price-clipped dustwrapper with short nicks on edges, lightly age-toned.

Hardcover. Condizione: UsedGood. Hardback; light edge wear, fading to cover; fading to page edge; former own er's name written inside rear board; otherwise in good condition with clean text, tight binding.

Condizione: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,950grams, ISBN.…

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,650grams, ISBN.

Cloth. Condizione: Very Good. No Jacket. First Edition. Hardback. First Edition. Numerical Analysis. Previous owners name to inside cover. Small repair to top edge of spine. Corners slightly worn. Browning to spine. Blue coth with gilt lettering. Contents: Introduction. The Tools of Numerical Work and How to Use Them. Evaluation of Formulae. Finite Differences. Interpolation. Integration (Quadrature) and Differentiation. Integration of Ordinary Differential Equations. Stimulataneous Linear Algebraic Equations and Matrices. Non-Linear Algebraic Equations. Functions of Two or More Variables. Miscellaneous Processes. Organization of Calculations For an Automatic Machine. Examples. Bibliography. Index. 287 pp. (We carry a wide selection of titles in The Arts, Theology, History, Politics, Social and Physical Sciences. academic and scholarly books and Modern First Editions, Reference books ,and all types of Academic Literature.).…

Condizione: New. pp. 150.

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,400grams, ISBN.

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

Condizione: Good. Manchester 1936 first edition. Memoirs and Proceedings of Manchester Literary & Philosophical Society 1935-36. Original pale blue printed wraps. octavo. Hartree article on pp. 85-102. Hartree's work in numerical analysis contributed to development of calculators and computers. Good, cover somewhat worn, frayed and chipped on cover edges; text near Fine, clean and bright. Institute stamp on cover. no other ownership marks. …

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).…