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Preface

This book provides an introduction to coordinate geomtry. In this book we cover straight lines, pair of straight lines, circle, parabla, hyperbola, ellipse and general conics in two- dimensions. We also cover planes, lines, spheres, cones etc in the three dimensional coordinate geometry.

Why I Wrote This Book?

There was no intention to write this book, rather it is just collection of my notes in digital form.

How to Read This Book?

Read sequentially. Understand the theory and solve the problems.

Who Should Read This Book?

Anyone interested in coordinate geometry should read this book.

Prerequisite

Basic mathematics till grade 10 is needed to understand this book. Basic knowledge of trigonometry and geometry are needed to understand the material presented in this book.

Goals for Readers

The goal is to understand the text so well that you should be able to solve 95% problems after 2 years.

Why another book?

As I said I had no intention to write the book. However, if we ignore that then the special thing about this book is the license. While most of the books are copyrighted this book is copylefted under GNU FDL. That means you are allowed to do almost anything as long as you keep the license same for the derivative work. You are modify, sell copies of the book etc. as long as you distribute derivative work under GNU FDL. There are very few books which are truly a free book. In software world GNU GPL or other equivalent licenses are quite common but in publishing industry we do not have such licensing as prevalent form of license.

Acknowledgments

As with any book there are a lot of people involved with this book but not in traditional sense of a typical book. I have written this book using Docbook thus Norman Walsh deserves praise. xsltproc has been used to process xml to html and it is a wonderful piece of software written by James Clark.

There are a lot of diagrams in this text and those have been drawn using Tikz. Thanks for its developers Till Tantau and Christian Feuersaenger along with all the contributors for creating such a wonderful piece of vector graphics library for TeX. I also use Asymptote a lot for drawing pictures, which, has been developed by Andy Hammerlindl, John C. Bowman and Tom Prince. Many thanks to these gentleman.

I must say thanks to my family particularly to my parents, wife and my son whose precious time I have taken to write this book and gave them numerous trouble in general. They have been the major force which supported while writing it. This book would not have been possible without their support.

There have been many teachers in my life who have helped me with various lessons in life and otherwise. I will try to remember all of them here and seek forgiveness if I miss anyone. My math teachers Yogendra Yadav, Hriday Nayaran Singh and Satyanand Satyarthi have helped me a lot with basics of Mathematics. Anurag Johri, for his technical discussions and insight into programming. My professors S. Sen, S. Sengupta and T. K. Basu for showing faith in me during troubled times.

I am not native English speaker and it has gone through only one pair of eyes thus you should expect all kind of errors, particularly related to punctuation. I would be glad if you could report all errors, suggestions and feedback to me at <shivshankar.dayal@gmail.com> and those will be incorporated.

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