718
718
Babbage, Charles (1791-1871)
A COLLECTION OF 2 ITEMS RELATING TO HIS DIFFERENCE ENGINE:
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718
Babbage, Charles (1791-1871)
A COLLECTION OF 2 ITEMS RELATING TO HIS DIFFERENCE ENGINE:
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厄文‧托馬許藏書: 運算的歷史

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Babbage, Charles (1791-1871)
A COLLECTION OF 2 ITEMS RELATING TO HIS DIFFERENCE ENGINE:
i. Babbage, Charles. "Mr. Babbage's Invention. Copies of the correspondence between the Lord's Commissioners of his Majesty's treasury and the President and council of the Royal Society, relative to an Invention of Mr. Babbage. [London: Royal Society of London, 1823], disbound, 6pp., slight spotting, (bought from Pickering & Chatto, London, 1994), [T&W B34; Origins of Cyberspace 31; Van Sinderen 18 (cited)]
ii. [Babbage, Charles.] "On the theoretical principles of the machinery for calculating tables. In a letter from Charles Babbage... to Dr. Brewster. [in:] The Edinburgh Philosophical Journal Vol. VIII. No. 15, pp.122-128. January 1823. Edinburgh: Archibald Constable, 1823, 8vo, rebound in modern paper covers, preserved in modern cloth folding box, some slight spotting, (bought from Biblion, 1983), [T&W B60; Origins of Cyberspace 32; Van Sinderen 20]
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相關資料

The first item is the first separate printing of the British government's reprint of Babbage's 1822 letter to Sir Humphry Davy which also appears in volume 15 of The House of Commons Sessional Papers, paginated 9-16. This separate printing also includes for the first time copies of accompanying letters from the Treasury and the Royal Society. The letter to Brewster describes the interesting developments occurring when the Difference Engine, rather than simply adding differences, was set to add multiples of differences.

厄文‧托馬許藏書: 運算的歷史

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