Analysis of information sources in references of the Wikipedia article "艾伦·图灵" in Chinese language version.
In late 1940 Alan Turing wrote a report describing the methods he and his colleagues at Bletchley Park had used to break into the German Enigma cipher systems. At Bletchley it was known as 'the Prof's Book.' A copy of this handbook was at last released from secrecy by the American National Security Agency in April 1996, under the title Turing's Treatise on the Enigma. Subsequently, a much better original copy was released by the (British) National Archives, box HW 25/3. This also revealed a title which had been lost in the American copy: Mathematical theory of ENIGMA machine. (Though, oddly, the report does not actually have any mathematical theory.)
Update 13 February 2015
In March 1935 the competition for fellowships was stiff–there were 25 candidates– but Keynes’s motion that Turing be elected was carried unanimously.
Update 13 February 2015
Update 13 February 2015
In March 1935 the competition for fellowships was stiff–there were 25 candidates– but Keynes’s motion that Turing be elected was carried unanimously.
Update 13 February 2015