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Overview of this book

LaTeX is high-quality open source typesetting software that produces professional prints and PDF files. It's a powerful and complex tool with a multitude of features, so getting started can be intimidating. However, once you become comfortable with LaTeX, its capabilities far outweigh any initial challenges, and this book will help you with just that! The LaTeX Beginner's Guide will make getting started with LaTeX easy. If you are writing mathematical, scientific, or business papers, or have a thesis to write, this is the perfect book for you. With the help of fully explained examples, this book offers a practical introduction to LaTeX with plenty of step-by-step examples that will help you achieve professional-level results in no time. You'll learn to typeset documents containing tables, figures, formulas, and common book elements such as bibliographies, glossaries, and indexes, and go on to manage complex documents and use modern PDF features. You'll also get to grips with using macros and styles to maintain a consistent document structure while saving typing work. By the end of this LaTeX book, you'll have learned how to fine-tune text and page layout, create professional-looking tables, include figures, present complex mathematical formulas, manage complex documents, and benefit from modern PDF features.
Preface
Chapter 1: Getting Started with LaTeX
Free Chapter
Chapter 2: Formatting Text and Creating Macros
Chapter 3: Designing Pages
Chapter 4: Creating Lists
Chapter 5: Including Images
Chapter 6: Creating Tables
Chapter 7: Using Cross-References
Chapter 8: Listing Contents and References
Chapter 9: Writing Math Formulas
Chapter 10: Using Fonts
Chapter 11: Developing Large Documents
Chapter 12: Enhancing Your Documents Further
Chapter 13: Troubleshooting
Chapter 14: Using Online Resources
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Building math structures

Variables and constants are simple. But there are more complex objects, such as binomial coefficients, vectors, and matrices. We shall figure out how to typeset such structures.

Let's begin with simple arrays.

Creating arrays

For arranging math expressions within a surrounding expression, there's the array environment. We use it exactly like a tabular environment. However, it requires math mode, and all of its entries are made using math mode as well.

For example, we can use variable-sized parentheses around an array:

$A = \left( \begin{array}{cc} a_{11} & a_{12} \\ a_{21} & a_{22} \end{array} \right)$

This produces a matrix:

Figure 9.33 – A simple array

There are specific commands for matrices.

Typesetting matrices

The amsmath package provides...