Abstract
THIS volume is in continuation of the subjects treated in parts i. and ii. by the same authors; these were reviewed in NATURE of February 9, 1911. The mathematical part of the present volume comprises sections dealing with trigonometry, mensuration, algebra, and rates of increase. The geometrical portion includes tangential arcs of circles, loci, conic sections, vectors, and descriptive geometry. The difficulty of coordinating successfully the two main branches of the subject is evident in this volume as in its predecessor. Chapters dealing with geometry stand isolated among others of a mathematical character, there being no apparent connection. Perhaps the chapter on conic sections is the only one showing a real attempt at coordination. The trigonometrical portion is very brief, containing little more than the definitions of the functions of an angle and the solutions of triangles. It would be useful to have the relations of the sum and difference of two angles included in this volume. In many cases the authors are content with the mere statement of a rule; this probably is the result of taking cases from practice, not in illustration of principles already discussed, but as problems needing a solution.
Practical Mathematics and Geometry.
A Textbook for Advanced Students in Technical and Trade Schools, Evening Classes, and for Engineers, Draughtsmen, Architects, Surveyors, &c. By Edw. L. Bates and Fredk. Charlesworth. Part iii., Advanced Course containing numerous Practical Exercises, with Answers, and about 300 Illustrations. Pp. viii + 447–776. (London: B. T. Batsford, 1911.) Price 3s. net.
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Practical Mathematics and Geometry . Nature 89, 240 (1912). https://doi.org/10.1038/089240a0
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DOI: https://doi.org/10.1038/089240a0