IN recent article (see Nature, August 27, p. 341) an account w as given of a conference on high-speed digital calucalting machines held in the University Mathematical Laboratory, Cambridge. The ...
In 1867, Frederick A. P. Barnard, a mathematician and the president of Columbia University in New York, served as a judge at the Exposition universelle, a world’s fair held in Paris. There he saw a ...
This compact cylindrical handheld calculating machine has gray metal sides and a black top and operating handle. There are 11 slots along the side of the cylinder with plastic red and black levers ...
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