Trigonometry (Notes)

About the Book

This textbook entitled Trigonometry (Notes) is a complete and detailed account of trigonometry, including numerous solved problems and formula derivations with each and every step included. Furthermore, the textbook presents the development of trigonometry in a logical manner, starting with the definitions of the six trigonometric ratios on a right-triangle, and later generalizing these definitions for the rectangular coordinate system. Finally, the six trigonometric functions are abstracted from the six trigonometric functions. The textbook is essentially divided into two parts:

Trigonometry developed from the right-triangle, and

Trigonometry derived from the rectangular coordinate system.

Trigonometry (Notes) is intended for the student who wants to learn trigonometry completely and thoroughly, with a complete understanding of the concepts and their relationships to one another.

Except for the Table of Contents, the textbook is hand-written as opposed to typed; thus the word Notes in parentheses in the title.

About the Author

Edward Walsh graduated from Moorhead State College at Moorhead, Minnesota, with a BA Degree in Mathematics. From his personal experience, he has found that trigonometry is one of the most poorly-explained subjects in mathematics. He decided to write a textbook on the subject that explains trigonometry in an easy to understand manner. Trigonometry is one of his favourite subjects in mathematics.