AMS Chelsea Publishing 1970; 201 pp; hardcover ISBN10: 0828402302 ISBN13: 9780828402309 List Price: US$30 Member Price: US$27 Order Code: CHEL/230
 In all his books, advanced and elementary, Dickson is noted for the extraordinary clarity of his writing. This very elementary book is no exception. From the Preface: "This book introduces at an early stage concrete applications ... We thereby obtain an abundance of simple problems whose importance is so convincing that they cannot fail to arouse real interest. Actual experience with classes has firmly convinced the author that these practical applications offer the best means to drive home the principles of trigonometry and to make the subject truly vital." Table of Contents  Trigonometric functions of acute angles
 Solution of right triangles by means of tables of the natural functions
 Traverse table; Solution of right triangles by inspection; Problems on forces and refraction of light
 Logarithms, slide rule
 Solution of right triangles by logarithms
 Navigation: Dead reckoning
 Part I. The sailings (true course assumed)
 Part II. Finding the true course; Compass corrections
 Land surveying
 Part I. Balancing a survey, area (true bearings assumed)
 Part II. Surveying instruments; Finding true bearings
 Trigonometric functions of any angle
 Solution of oblique triangles
 Relations between functions of several angles
 Graphs of the trigonometric functions and their inverses, radians
 List and index of formulas
 Index, including index to definitions
 Answers to certain of the first five exercises of each set
 Tables
