Abstract
THIS elementary text-book of 176 pages contains all the essentials for obtaining a knowledge of trigonometry proper. It might be used either by those who desire merely a thorough grounding in the elements, or, as a first book, by those who intend to take a full analytical course. The arrangement is good, the text well written, and the examples, worked and unworked, are numerous and judiciously chosen. The introductory chapter on the measurement of angles is particularly commendable. We should prefer, however, not to write “(π/3 radians” but “(π/3 radian,” reading it “pi-thirds of a radian.” It may be suggested also to a writer who has the courage to introduce reforms, whether the time has not come for dispensing with the so-called tablogsines, tablogcosines, &c., and using only logsines, logcosines, &c. Tabular log functions are, according to our experience, well-meant aids which only hinder.
Elementary Text-Book of Trigonometry.
By R. H. Pinkerton (London: Blackie and Son, 1884.)
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Elementary Text-Book of Trigonometry . Nature 31, 148 (1884). https://doi.org/10.1038/031148c0
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DOI: https://doi.org/10.1038/031148c0