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Published byClarissa Briggs Modified over 7 years ago
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Department of Mathematics, Jazan University, Jazan
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A computer program for typesetting text and mathematical formulas Uses commands to create mathematical symbols Need to compile the file in order to see the finished product
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Always begin with a backslash \ Case sensitive Consist of letters only Some have parameters Square brackets [ ] after the command name are for optional parameters Curly braces { } after the command name are for required parameters
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Can use lots of different programs to create a LaTeX file All computers here use WinEdt Need to begin by creating a new file
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LaTeX is available online for free at http://www.latex-project.org/ http://www.latex-project.org/ WinEdt is also available online with a free 30 day trial period at http://www.winedt.com/http://www.winedt.com/
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Begins with a preamble (Preamble is where the overall construction of your document is listed) \documentclass[options]{class} class specifies the type of document to be created Usually use article or amsart Can also use slides or siamltex options customizes the document class you are using Can be used to set font size (10, 11, or 12 pt), set paper size, use one or two columns, etc.
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Begins with a preamble \usepackage{package} Packages add new features and commands to LaTeX Common packages: amsmath, amssymb, graphicx Can also define new commands in the preamble, specify page numbering, etc.
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Now we’re ready to begin the body of the text \begin{document} \begin{…} commands always need to be followed (eventually) by \end{…} commands Enter the actual content here \end{document}
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Click the “LaTeX ” or “PDF LaTeX” button on the top right To view your file, click “DVI” or the Adobe Acrobat symbol DVI stands for “ D e V ice I ndependent” – it’s basically a generic viewer Can change between DVI, PDF, or PS files and document is automatically saved when you typeset it
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.tex – input file, needs to be compiled .tex.bak – backup LaTeX file and is changed when document is typeset .dvi – DVI file which shows what your file looks like .log – log file, tells what happened the last time you compiled your document - Helpful to look at if there are errors and you don’t know why
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Mathematical text is placed between $ Math mode is normally displayed inline Can make some expressions look funny To display math mode in a larger font, use \displaystyle Makes all symbols within $ larger For text within math mode, use \text{…} Math mode uses italics and no spaces between words
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Greek letters $\pi$ for lowercase, $\Pi$ for uppercase No command for $\Alpha$ Fractions $\frac{numerator}{denominator}$ For a larger fraction, use \displaystyle
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Superscripts and Subscripts $x^2$ $x_2$ Use curly braces to group items together $x_{i_2}$ or $x_{min}$ Can have a superscript and a subscript on the same character $x_i^3$
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Limits and Integrals Probably want to use \displaystyle, otherwise they’ll look funny $\displaystyle \lim_{x \to \infty} 3x$ $\displaystyle \int_0^2 x\, dx$ The \, gives a space between x and dx Square roots $\sqrt{x}$
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Displaying special characters $\mathbb{R}$ or $\mathcal{R}$ Trignometric functions $\sin$ or $\cos$ Math inequalities $\le$ or $\ge$
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Quote marks For left-hand quote marks, use `` For right-hand quote marks, use ” or ’’ Comments Use % at the beginning of any lines you want to comment out Creating a space between two characters \, Creating a new line \newline
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Many environments available in TeX Used to help format parts of your document Always need \begin{environment name} and \end{environment name}
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Itemize environment \begin{itemize} and \end{itemize} Creates an outline using bullet points Items within the section are created by \item Can nest itemize environments within one another
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Enumerate environment \begin{enumerate} and \end{enumerate} Creates an outline using numbers and letters Items within a section are created by \item Can nest enumerate environments within one another
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Centered environment \begin{center} and \end{center} To end a line within the environment, use \\
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Equation environment \begin{equation} and \end{equation} Automatically numbers equations, so mainly used when you need equations to be numbered For no numbers, use equation* Puts the equation in the center of the line Can label equations by \label{name} Centers equation on page Do not need $ within equation environment
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Align environment \begin{align} and \end{align} For no numbers on all equations, use align* For no numbers on some use \nonumber Put & in front of the symbol in each line that you want aligned End each line (except the last one) with \\ Do not need $ within align environment
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Especially used for matrices Begin with left symbol for matrix $\left[ Next, begin array environment \begin{array}{lrc} Tells how many columns you have and their alignment - left, right or center
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Specify the entries of the matrix Separate the entries by & End each row (except the last one) by \\ End the array \end{array} Create the right side symbol for the matrix \right]$
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Can also have lines within arrays Horizontal lines Use \hline after each row that you want a line under x^2 & 4x & 3 \\ \hline Vertical lines Put | between the columns that you want lines between \begin{array}{lr|c}
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Basically the same as arrays \begin{tabular}{lrc} and \end{tabular} Can add lines in the same way that you do for arrays For more info see pages 34 - 37 of Getting Started with LaTeX
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Often used to import some other type of file (usually a.eps file ) into your document Can generate graphics in LaTeX, but this is harder to do Any imported file needs to be in the same directory as your main file Also need to include the package graphicx in your preamble
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Begin the figure environment by \begin{figure}[placement] placement is an optional argument that tells LaTeX where on the page you want the figure Can be h (here), t (top), b (bottom), or p (on a separate page) Put an ! before the placement if you really want the figure at that page location
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Include the file that you want \includegraphics[display]{filename} display is an optional parameter which allows you to change the appearance of your graphic Can use the following parameters: width, height, angle (rotates the graphic counterclockwise), scale (number between 0 and 1) Changing width or height will preserve the aspect ratio
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Can create a caption for your figure \caption[shortname]{longname} shortname is displayed in the Table of Contents (if you create one) longname is displayed below the figure Captioning also automatically labels your figures Can label your figure \label{reference} Allows you to refer to your figure later by using \ref{reference}
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End the figure environment \end{figure} May sometimes need to create a PostScript file instead of a PDF file in order to get graphics to display properly More info on pages 38 – 40 of Getting Started with LaTeX
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\title[label]{actual title} If you label your title, you’ll be able to reference it later Can also label theorems, equations, figures, tables, etc. \author{authors} Need to put \maketitle after title and authors \today Gives the current date Usually want this centered
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\thanks{…} Creates a footnote with whatever is in the braces Usually used after authors’ names for academic information Abstract Use \begin{abstract} and \end{abstract} Keywords Use \begin{keywords} and \end{keywords} OR use \keywords{…}
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Papers should be divided into sections, subsections, etc. Important commands: \section{Title of section} \subsection{…} \subsubsection{…} \paragraph{…} \subparagraph{…}
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Bibliography \begin{thebibliography}{number} and \end{thebibliography} number is 9, 99, 999, etc. Tells LaTeX how if you will be using only single-digit numbers, double-digit numbers, etc. Use \bibitem{Label} to create a new reference Label lets you reference that item elsewhere in the paper
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May want to reference a section, theorem, figure, example, etc. somewhere else in the document To label a section \section{Title}\label{Label for section} To reference a section \ref{Label for section} Only gives the section number – you’ll need to type Section separately To reference a bibliography item, use \cite{Label}
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\newtheorem{short name}{long name} is used to typeset “Theorems”, “Lemmas”, “Definitions” and similar structures Short name is what you type Long name is what is displayed on the page The \newtheorem command is placed in the preamble of the document Numbering is automatic
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For unnumbered theorems, use either command with \newtheorem* * can be used in many environments for unnumbered items May need to include the package amsthm in order to properly display theorems
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Typing some long commands over and over is not fun Can define a new command that’s easier to type Goes in preamble \newcommand{newname}{oldname} newname cannot be the name of an existing command
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