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This lecture provides a comprehensive overview of LaTeX, a powerful document preparation system. We will explore its history, usage, and how it differs from traditional word processing tools. Learn to create professional documents through plain text files annotated with commands, utilizing features such as section headings, lists, tables, and mathematical formulas. Understand LaTeX's error handling, formatting capabilities, and the importance of braces in command grouping. Ideal for beginners and anyone looking to enhance their document creation skills.
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Introduction to Unix – CS 21 Lecture 16
Lecture Overview • LaTeX • History • Running and creating LaTeX documents • Documents and Articles • Tables • Lists • Fonts • Math mode
LaTeX – What Is It? • A general markup language • LaTeX is a system that describes how documents should appear on paper • Formatting • Margins • Section Headings • Special characters
Other Examples Of Markup Languages • HTML • Hypertext markup language • Used to describe how web pages appear • A little bit of interpretation is still required and pages may look different on different browsers • SGML • Allows for the construction of special constructs
Where Did It Come From? • TeX • 1977 – Donald Knuth • Low level formatting details • Constructed to make mathematical books look good • LaTeX • 1980’s – Leslie Lamport • A layer of abstraction on top of TeX
Why Not Just Use Word? • Main reason: Bugs • TeX has long had a bounty for serious bugs that no one can collect on • Secondary reason: • LaTeX does what you tell it to • LaTeX doesn’t try to out-think you and put figures where it believes them to be best
O.K., How Does Latex Work? • Latex works on plain text files that are annotated with commands • Commands are of the form: \command{parameter} • Example: \documentclass{article} • Document class tells LaTeX what type of document you are creating • Books have chapters, articles have sections, etc. • Most common: article, book, letter, report, slides
What’s With The Braces? • LaTeX uses the braces for grouping like parenthesis • { text } is the same as simply text • Commands inside braces (like changing fonts) only apply inside the braces • Example: • { \sf This is in a serif font } And this is not
How Do I Get A Printable Paper Out? • Usage: latex document.tex • This creates several files • document.aux, document.log, document.dvi • document.idx, document.toc, document.lof • xdvi document.dvi • Views the document • dvips –o document.ps document.dvi
What To Do When Something Goes Wrong • Latex will pop up with an error message whenever it encounters a problem • Malformed or unknown command • Simplest thing to do: Simply hit return and ignore whatever command LaTeX had problems with • Alternative: type I followed by the correct command to replace the problem • Example: I\end{document}
Example Output • dvi1.JPG
What Are Comments Doing In A Document? • Might seem a little weird coming from using Word • LaTeX can define new commands and can be confusing at times • LaTeX is not a programming language like perl or awk
Normal Text • All paragraphs of normal text are simply typed in without any commands. • Spacing is not taken into account, and all spaces get reduced to one space • Example: • this is the same • this is the same
Normal Text Output • dvi2.JPG
Common Constructs • Italics and Bolding • Sectioning • Lists • Tables • Footnotes • Mathematical formulas
Italics And Bolding • \emph{text to be emphasized} • \bf • Changes the font to a bolder font
Unnumbered Sections • \section{Section Name} • Always numbers the section • You can change the format of sections numbers if you’d like • \section*{Section Name} • Will output an unnumbered section
Counters • All sections have a counter associated with them • You can adjust this counter if you’d like • \addtocounter{name}{value} • You can create your own counters • \newcounter{name} • \setcounter{name}{value}
Printing Out The Current Section Numbers • “The” notation • Will print out the current value of the counter associated • \thechapter • \thesection • \thesubsection
Ordered And Unordered Lists • Ordered lists are handled with the enumerate construct • \begin{enumerate} • \end{enumerate} • Unordered lists are handled with the itemize construct • \begin{itemize} • \end{itemize} • \item
Tables • Tables are handled with the tabular environment • \begin{tabular}{ FORMAT } • \end{tabular} • FORMAT determines how many columns are in the table and how text is arranged
Format Specifics • | represents vertical lines • Specific characters tell how to arrange text in the columns • l = Left aligned • c = Centered • r = Right aligned
Table Internal Specifics • & will separate columns • \hline draws horizontal lines • \\ ends a line
Footnotes • Footnotes are handled with the \footnote construct • \footnote{This is a footnote} • Again, there is an automatic counter that keeps track of your footnotes on a section by section basis
Mathematical Constructs • LaTeX was built on Tex, which was designed for easy representation of complex mathematical formulas • A special mode for math formulas exists in LaTeX • $Math mode$