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1. Numerical analysis. Second Edition by Douglas R Hartree | |
Hardcover: 302
Pages
(1958)
Asin: B0006AVCEW Canada | United Kingdom | Germany | France | Japan | |
2. Calculating Instruments and Machines by Douglas R Hartree | |
Hardcover: 138
Pages
(1949)
Asin: B0006ARWLY Canada | United Kingdom | Germany | France | Japan | |
3. Calculating Machines: Recent and Prospective Developments and Their Impact on Mathematical Physics, andCalculating Instruments and Machines (Charles Babbage Institute Reprint) by Douglas Hartree | |
Paperback: 154
Pages
(1984-02-10)
list price: US$20.00 -- used & new: US$20.00 (price subject to change: see help) Asin: 0262512777 Average Customer Review: Canada | United Kingdom | Germany | France | Japan | |
Editorial Review Product Description Customer Reviews (1)
Computing Prehistory by One of Its British Participants A review by Frederick A. Ware This book is volume six in the Charles Babbage Institute Reprint Series for the History of Computing. Douglas Hartree was primarily aphysicist, his most significant contribution being the Hartree-Fockself-consistent approximation technique for generating molecular wavefunctions. Later in his career, he became one of the leading computerresearchers in Britain during the late 1940s when Britain briefly overtookthe United States in this new field. This was a tremendously enjoyablebook. It goes into significant depth in a number of areas. The reader isimpressed and surprised by how far computer hardware and softwaredevelopment had moved in the three years since the unveiling of Eniac. This is a valuable historical reference, as well, touching upon theprimary classes of computing machinery during what is arguably the mostcritical two decades in the realization of the computer. In 1930 the onlycomputing instruments were the mechanical desk calculator and slide rule.By 1950 there were several dozen stored program machines doing useful workscattered across two continents. This book covers the development ofcalculating instruments and machinery during the 1930s and the 1940s.Briefly, the nine chapters are: [1] Introduction [2] The DifferentialAnalyser (those Brits don't know how to spell) - The Bush DifferentialAnalyser is described extensively. The core of this mechanical analoguecomputer is the two diskintegrator. Shaft rotations are used to representnumerical values, and ordinary differential equations may be solvednumerically with the instrument. There is also some discussion of howmechanical analogue computers were quickly replaced by analogue electroniccomputers with the development of the vacuum tube operationalamplifier. [3] The Differential Analyser and Partial DifferentialEquations - Partial differential equations are turned into ordinarydifferential equations be evaluating them with one of the independent keptto a limited range. The equations are solved repeatedly to give a family ofnumerical solutions. [4]Some Other Instruments - Analogue instrumentationcapable of Fourier decomposition and Fourier synthesis is described. [5]Introduction to Large Automatic Digital Computers - The structure of adigital computer is described - main store, processing unit, control unit,and an input/output unit. Also the basic classes of commands used toprogram the machine are described: load/store transfers, arithmetic/logicaloperations, sequencing operations (branch and skip), and input/outputoperations. Computer science 101, but it was pretty new in 1949. [6]Charles Babbage and the Analytical Engine - A description of Babbagescomputer demonstrating how it mapped into the digital computer of chapter5. [7] The First Stage of Development - A description of the firstcomputers (really just souped-up calculaters with some kind of automaticsequencing capability). This included the Harvard Mark I mechanical digitalcomputer, the Bell Telephone relay digital computer, and the Penn Statevacuum tube digital computer. Of the three, the Eniac was the mostsignificant because of its blinding speed - the electronic components gaveit a 1000x performance advantage over the other technologies. The keycontribution of Mauchley and Eckert was to prove that large numbers ofvacuum tubes could be operated reliably. The architecture of the machinewas not significant, with all subsequent vacuum tube machines utilizing thefamiliar stored program architecture. [8] Projects and Prospects - Thedevelopment of large, fast main storage is the critical problem to beaddressed in the late 1940s. The two principle alternatives to vacuum tubeflipflops are mercury delay lines and electrostatic storage on a CRT . Bothare volatile and require refreshing techniques. Both go on to be used in anumber of computers in the next five years until ferrite core memory isdeveloped. [9] High Speed Automatic Digital Machines and NumericalAnalysis - The first attempts to develop numerical algorithms that arestable and efficient. The problems are the same as those attacked by theearlier analogue machines, but the problems of roundoff and quantizationmust be addressed for the first time. ... Read more |
4. Douglas Rayner Hartree: His Life in Science and Computing by Charlotte Froese Fischer | |
Hardcover: 244
Pages
(2004-01)
list price: US$111.00 -- used & new: US$111.00 (price subject to change: see help) Asin: 9812385770 Average Customer Review: Canada | United Kingdom | Germany | France | Japan | |
Editorial Review Product Description Customer Reviews (2)
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5. Douglas Rayner Hartree: An entry from Gale's <i>Science and Its Times</i> | |
Digital: 1
Pages
(2000)
list price: US$0.98 -- used & new: US$0.98 (price subject to change: see help) Asin: B0027UWXTC Canada | United Kingdom | Germany | France | Japan | |
Editorial Review Product Description |
6. Mathematical Physicists: Nikolay Bogolyubov, Reinhard Oehme, Asghar Qadir, Douglas Hartree, E. T. Whittaker, Peter Guthrie Tait | |
Paperback: 92
Pages
(2010-09-14)
list price: US$19.99 -- used & new: US$19.99 (price subject to change: see help) Asin: 1155220390 Canada | United Kingdom | Germany | France | Japan | |
Editorial Review Product Description |
7. Physicien Anglais: Isaac Newton, Stephen Hawking, John Randall, William Whiston, Jim Al-Khalili, Frederick Lindemann, Douglas Hartree (French Edition) | |
Paperback: 92
Pages
(2010-08-06)
list price: US$19.99 -- used & new: US$16.61 (price subject to change: see help) Asin: 1159880018 Canada | United Kingdom | Germany | France | Japan | |
Editorial Review Product Description |
8. On an equation occurring in Falkner and Skan's approximate treatment of the equations of the boundary layer. with: HARTREE & Bertha SWIRLES. The effect of configuration interaction on the low terms of the spectra of oxygen. by Douglas Rayner (1897-1958). HARTREE | |
Hardcover:
Pages
(1937-01-01)
Asin: B000OR9E42 Canada | United Kingdom | Germany | France | Japan | |
9. The Calculation of Atomic Structures by Douglas R. Hartree | |
Hardcover:
Pages
(1957)
Asin: B000O8QUXO Canada | United Kingdom | Germany | France | Japan | |
10. Wave functions for negative ions of sodium and potassium. by Douglas Rayner (1897-1958) & W. HARTREE. HARTREE | |
Hardcover:
Pages
(1938-01-01)
Asin: B000ORADCE Canada | United Kingdom | Germany | France | Japan | |
11. Calculating machines;: Recent and prospective developments and their impact on mathematical physics, inaugural lecture by Douglas R Hartree | |
Paperback: 40
Pages
(1947)
Asin: B0006AR732 Canada | United Kingdom | Germany | France | Japan | |
12. A METHOD FOR THE NUMERICAL OR MECHANICAL SOLUTION OF CERTAIN TYPES OF PARTIAL DIFFERENTIAL EQUATIONS and TIME-LAG IN A CONTROL SYSTEM -II. In Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, Vol. 161, pps. 353-366 and pp. 460-476. by Douglas R., J. R. Womersley., A. Callendee., A. B. Stevenson. HARTREE | |
Hardcover:
Pages
(1937-01-01)
Asin: B001B0V27S Canada | United Kingdom | Germany | France | Japan | |
13. Calculating Instruments & Machines 1ST Edition by Douglas R Hartree | |
Hardcover:
Pages
(1949)
Asin: B000Q9ZBSG Canada | United Kingdom | Germany | France | Japan | |
14. Self-consistent field, including exchange and super-position of configurations, with some results for oxygen. by Douglas Rayner (1897-1958), et al. HARTREE | |
Hardcover:
Pages
(1940-01-01)
Asin: B000ORE9QK Canada | United Kingdom | Germany | France | Japan | |
15. CALCULATING INSTRUMENTS AND MACHINES. by Douglas Rayner Hartree | |
Paperback:
Pages
(1949-01-01)
Asin: B001DDECS4 Canada | United Kingdom | Germany | France | Japan | |
16. The calculation of atomic structures: Based on lectures given under the auspices of the William Pyle Philips Fund of Haverford College,1955 (Structure of matter series) by Douglas Rayner Hartree | |
Hardcover: 181
Pages
(1957)
Asin: B0000CJP9S Canada | United Kingdom | Germany | France | Japan | |
17. Calcultaing Instruments and Machines by Douglas R. Hartree | |
Hardcover:
Pages
(1953-01-01)
Asin: B003L8TLVW Canada | United Kingdom | Germany | France | Japan | |
18. Differential analyser (Permanent records of research and development) by Douglas R Hartree | |
Unknown Binding:
Pages
(1949)
Asin: B0007JNCRW Canada | United Kingdom | Germany | France | Japan | |
19. The calculation of atomic structures (Structure of matter series) by Douglas R Hartree | |
Unknown Binding: 181
Pages
(1957)
Asin: B0006AUYH8 Canada | United Kingdom | Germany | France | Japan | |
20. Calculating instrumens and machines by Douglas R Hartree | |
Unknown Binding: 138
Pages
(1950)
Asin: B0007J0DLK Canada | United Kingdom | Germany | France | Japan | |
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