Excerpt from Trigonometry, for Schools and Colleges
This book is a revision of lectures on trigonometry which we have given to our students for several years, and have furnished them during the last two years in manifolded form. The results have been so satisfactory, that we have been led to hope that the work would prove useful in a larger field. Our aim has been to adapt the work to the needs of students and teachers, with reference to other mathematical subjects both elementary and advanced.
Since in our own and a growing number of other institutions, an explicit course on a book of tables precedes the course in trigonometry, we have omitted that work, and do not publish tables. We have used some fundamental principles of algebra and geometry, with which students of trigonometry can be assumed to be familiar, without giving references.
We have not given numerical solutions of examples under the different cases of triangles, because the competent teacher does not need them, and we wish to leave him free to use such models as he prefers.
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