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TRIGONOMETRY AND TABLES

BY

G. A. WENTWORTH

AUTHOR OF A SERIES OF TEXT-BOOKS IN MATHEMATICS

SECOND REVISED EDITION

BOSTON, U.S.A.

GINN & COMPANY, PUBLISHERS

The Athenæum Press

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(Second Revised Edition)

Analytic Geometry

Logarithms and Metric Measures

Geometrical Exercises

Syllabus of Geometry

Examination Manual in Geometry (Wentworth and Hill)

Exercise Manual in Geometry (Wentworth and Hill)

Plane Trigonometry (Second Revised Edition)

Plane Trigonometry and Tables (Second Revised Edition)

Plane and Spherical Trigonometry (Second Revised Edition)

Plane and Spherical Trigonometry, with Tables (Second Revised Edition)

Plane Trigonometry and Surveying, with Tables (Second Revised Edition)

Surveying and Tables (Second Revised Edition)

Plane and Spherical Trigonometry and Surveying, with Tables (Second Revised Edition)

Plane and Spherical Trigonometry, Surveying, and
Navigation (Second Revised Edition)
Logarithmic and Trigonometric Tables

Seven Tables
Complete

(Wentworth and Hill)

COPYRIGHT, 1882, 1895, 1902, 1903, BY

G. A. WENTWORTH

ALL RIGHTS RESERVED

PREFACE

IN preparing this work the aim has been to furnish just so much of Trigonometry as is actually taught in our best schools and colleges. Consequently, all investigations that are important only for the special student have been omitted, except the development of functions in series. The principles have been unfolded with the utmost brevity consistent with simplicity and clearness, and interesting problems have been selected with a view to awaken a real love for the study. Much time and labor have been spent in devising the simplest proofs for the propositions, and in exhibiting the best methods of arranging the logarithmic work.

The author acknowledges his obligation to G. A. Hill, A.M., of Cambridge, Mass., to Dr. F. N. Cole, of New York, N.Y., to Professor S. F. Norris, of Baltimore, Md., and to Professor B. F. Yanney, of Alliance, Ohio.

EXETER, N.H.,
January, 1903.

G. A. WENTWORTH.

[The numbers refer to the pages.]

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