Abstract
MR. HEPPEL's little hand-book is not a complete treatise on elementary analytical geometry as usually presented to junior students, but it is a sequel to a previous small work in the same series (“Students' Aid Series”), “On the Geometry of the Straight Line and Circle.” The object aimed at in the two works is to fully equip readers for the B.A. and B.Sc. examinations of the London University and similar examinations. Hence a limited portion only is discussed, viz. the equations to the conics; tangents, polars, normals, and curvature; sections of a cone, harmonic pencils, and miscellaneous theorems. Though Mr. Heppel has treated his subject concisely, he has not done his work in a perfunctory manner, for there is much originality exhibited in his mode of treatment, and he has discussed the general equation, not only for rectangular axes, but generally, in a very clear manner. If we mistake not, this clear exposition of a somewhat difficult part of the subject—difficult, that is, to junior students—is the outcome of some years' experience in tuition. In an appendix are given “hints to students” founded on this experience, and solutions to questions, illustrative of the text, which have been taken from the London University papers. There are a few errors in the printing, but they are not of a character to seriously inconvenience the student. We could have wished for a larger page, for then more justice would have been done to the author in the presentment of some of the formulæ. A student who carefully reads the text and transfers the formulæ for the separate conics to larger pages, ought to require no other text-book than this small one for the examinations named above.
The Conic Sections, with Solutions of Questions in London University and other Examination Papers.
By G. Heppel (London: Baillière, Tindall, and Cox, 1887.)
A New Mode of Geometrical Demonstration, with Examples showing its Application to Lines and Angles, Surfaces, and the Products of Three or more Straight Lines, &c.
By D. Maver. (Aberdeen: A. Brown, 1887.)
Easy Lessons in the Differential Calculus: indicating from the Outset the Utility of the Processes called Differentiation and Integration.
By R. A. Proctor. (London: Longmans, 1887.)
First Steps in Geometry: a Series of Hints for the Solution of Geometrical Problems, with Notes on Euclid, useful working Propositions, and many Examples.
By R. A. Proctor. (London: Longmans, 1887.)
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Some Mathematical Books . Nature 36, 602–603 (1887). https://doi.org/10.1038/036602a0
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DOI: https://doi.org/10.1038/036602a0