A place to keep some notes and demo files.
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# Multiple Columns
To make an *entire* document render in two columns, just pass the `twocolumn` parameter to the document class:
``` \documentclass[twocolumn]{article} ```
To achieve finer control over multiple columns, use the `multicol` package. (Extended documentation is [here](https://ctan.org/pkg/multicol?lang=en).) Just add the following to the document's preamble:
``` \usepackage{multicol} ```
The basic use is:
``` \begin{multicols}{3}
Lorem ipsum
\end{multicols} ```
To include a section which is *not* multiple columns, enclose that text in square brackets:
``` \begin{multicols}{3}
[ This line will not be in multiple columns ]
This line and all remaining text will be in three columns.
\end{multicols} ```
## Column Separation
The distance between the columns is controlled by `\columnsep` in the `\setlength` parameter in the document's preamble:
``` \setlength{\columnsep}{0.5in} ```
## Unbalanced Columns
By default, the `multicol` package will do its best to balance all the columns. If you want *unbalanced* columns, then use `multicols*` instead:
``` \begin{multicols*}{3}
This text will have unbalanced columns.
Lorem ipsum. \end{multicols} ```
## Column Rules
To insert a vertical line between columns, pass `\columnseprule` to the `\setlength` parameter in the document's preamble:
``` \setlength{columnseprule}{1pt} \def\columnseprulecolr{\color{blue}} ```
In order to add colors, be sure to use the `color` package by adding the following to the document's preamble:
``` \usepackage{color} ```
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