Thompson J. Trigonometry for the Practical Man 3ed 1962

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This book has been designed to present the various branches of fundamental mathematics so that they may be understandable without the assistance of a teacher.
The author, in his experience as an engineer and as a teacher of mathematics to student and laymen in evening schools and in colleges, has heard many of these men express to desire for books that may be used for home study, and the series of books to which this volume belongs is the results of an attempt to meet their needs and wishes