Projective and Analytical Geometry

Abstract

(1) PROF. WINGER'S work is intended by the author to serve as an introduction to the higher parts of modern geometry, and on the whole well serves this purpose. It covers much ground, and is clear and concise, though on the other hand it is impossible not to remark on the minor inaccuracies with which the book is strewn. For example, on page 54 it is assumed that the value of a divergent series is infinite; or again, the term “degree “is used in several places where “order “is plainly implied (to refer to the degree of a space curve is meaningless). The author has not realised the necessity of restricting most statements to the general case.

(1) An Introduction to Projective Geometry.

By Prof. R. M. Winger. Pp. xiii+443. (Boston, New York and Chicago: D. C. Heath and Co.; London: G. G. Harrap and Co., Ltd., 1923.) 12s. 6d. net.

(2) Analytic Geometry.

By Prof. C. E. Love. Pp. xiv+306. (New York: The Macmillan Co.; London: Macmillan and Co., Ltd., 1923.) 10s. 6d. net.

(3) Plane and Solid Analytic Geometry.

By Prof. W. F. Osgood Prof. W. C. Graustein. Pp. xvii+614. (New York: The Macmillan Co.; London: Macmillan and Co., Ltd., 1922.) 14s. net.

(4) Lehrbuch der analytischen Geometrie.

Von Prof. Lothar Heffter. Band 2: Geometrie im Bündel und im Raum. Pp. xii+421. (Leipzig und Berlin: B. G. Teubner, 1923.) 9s. 5d.