This book opens up an important field of mathematics at an elementary level, one in which the element of aesthetic pleasure, both in the shapes of the curves and in their mathematical relationships, is dominant. This book describes methods of drawing plane curves, beginning with conic sections (parabola, ellipse and hyperbola), on to cycloidal curves, spirals, glissettes, pedal curves, strophoids and so on. In general, 'envelope methods' are used. There are twenty-five full-page plates and over ninety smaller diagrams in the text. The book was designed to be used not only in schools, but also as a reference for draughtsmen and mechanical engineers. As a text on advanced plane geometry it should appeal to pure mathematicians with an interest in geometry, and to students for whom Euclidean geometry is not a principal study.
This is an ex-library book, which has a closed tear on the upper rear part of the corner-clipped dust jacket, measuring approx. under 6 cm in total, in the shape of a curve, appropriately. The ffep and inside front board have neat library plates, the rfep and inside rear board bear residue from old adhesive tape. This does not detract from the fascination and sheer beauty within: clear text, b/w figures, diagrams, curves to excite any Spirograph enthusiast, and elegant formulae which translate the esoteric codes therein.