Plane Trigonometry, 1937, 1937-04

Document Type: Textbook (Technical).

Purpose: Training and Education.

Authority: Author Expertise.

Scope (from Preface to First Edition and Preface to Revised Edition): "This text contains the material that is usually required for a semester's course in trigonometry. Since the present tendency is in the direction of a concise treatment, an effort has been made to present clearly and without too much detail the essentials of the subject."

"The principal changes are as follows: (1) A new chapter on logarithms has been added for the student who has had little practice in the theory and use of logarithms. (2) A great many new problems and exercises have been added. There are now nearly twice as many well graded exercises as in the first edition, with each set of exercises forming a page unit or a unit of several pages. (3) A brief discussion of approximate measurement is given. (4) The exercises are arranged in such a way that the instructor may select either odd-numbered or even-numbered exercises. Answers are provided only for the odd-numbered exercises."

Contents (from Table of Contents): Chapter I. Introduction Chapter II. Coordinates Chapter III. Angles - Trigonometric Functions Chapter IV. The Right Triangle Chapter V. Logarithms Chapter VI. The Solution of Right Triangles Chapter VII. The Oblique Triangle Chapter VIII. Reduction Formulas Chapter IX. Relations Between the Functions Chapter X. Trigonometri Analysis Chapter XI. Units of Angle Measure Chapter XII. Line Values - Graphic Representation Chapter XIII. Inverse trigonometric Functions Answers Index