Author: Vasile Postolică

An Introduction to Trigonometry and its Applications

eBook: US $59 Special Offer (PDF + Printed Copy): US $108
Printed Copy: US $78
Library License: US $236
ISBN: 978-1-60805-951-5 (Print)
ISBN: 978-1-60805-950-8 (Online)
Year of Publication: 2014
DOI: 10.2174/97816080595081140101

Introduction

An Introduction to Trigonometry and its Applications presents a systematic approach to explain trigonometry concepts and applications. The textbook introduces readers to set theory and progresses to explaining different functions using an ensemble structure composed of real analysis and axiomatic fundaments of geometry.

Readers of this book will be able to learn about:

-Sets (including basic set theory and relationships between real number sets) -Real functions of real arguments (from surjective functions to continuous functions) -Vectors and associated axioms -Trigonometry functions and inverse restrictions -Applications of trigonometric functions

An Introduction to Trigonometry and its Applications presents definitions, properties, formulae, concepts and applications in a clear and concise manner making it a pertinent introduction for the high school students, university students, mathematics teachers and anyone who is interested in the major elements that make up the essence of trigonometry and associated functions.

Preface

Trigonometry appeared as a part of medieval geometry, at first the spherical component required by astronomy, after that plane trigonometry was developed. In 1260 the most extensive work in this field was created “ The Treatise of the Complete Quadrilateral”, written by Näsr-ad-Din, followed by the first synthesis of trigonometric knowledge of the 15th century elaborated by Regiomontanus. By studying and developing applied mathematics, the Indians have introduced the sine function as association of any circle arc having half the length of the under tightened cord by the arc’s double, the term “sine” and some interpolator methods of calculating the values of this function were given by Peuerbach, and the natural connections between algebra, mathematical analysis and trigonometry appeared in the 18th century. Using the major elements of the Basis of Mathematics, the book briefly, but rigorously presents in the first chapter sets, relations, and the algebraic-topologic structure for R and R , properties of real functions of real argument in the second chapter, and the concept of vector in R3, described in the third chapter. The book presents itself as an original and synthetic approach that allows a quick learning of the fundamental trigonometric functions and the corresponding inversive restrictions thoroughly analyzed in the fourth chapter, followed by the suggestive applications in the last chapter, without any further consultation of some additional bibliography. The theoretical considerations and the applicative issues are significant proving to be very useful for everyday classes, different exams and the methodic-scientific improvement. Thus, the book addresses anyone who is interested not only in properly knowing trigonometry, but also in the major elements regarding one of the essence of mathematics. It is the result of the unrests of a teenager fascinated by mathematics and of the responsibilities of the teacher he has come to be and it is also of interest to: advanced high school students, undergraduates, and mathematics teachers. The author shows great responsiveness towards any suggestion meant to improve the contents and the presentation, with thanks everyone who has made possible the publishing of this book.

CONFLICT OF INTEREST
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ACKNOWLEDGEMENT
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Vasile Postolică,
Romanian Academy of Scientists,
“Vasile Alecsandri” University of Bacău,
România,
Email: vpostolica@ambra.ro

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