Examples — Recent
Examples of powerful LaTeX packages and techniques in use — a great way to learn LaTeX by example. Search or browse below.

Hello World Example
This is the very simple example of a 'Hello, World!' document in LaTeX, from video #1 in the LaTeX video tutorial series by Dr Vincent Knight.
Dr Vincent Knight

Ejemplo de uso de condicionales para definir un nuevo Macro
Esta es un ejemplo de cómo utilizar casos condicionales para evaluar
las diferentes opciones de un parámetro de entrada en un nuevo macro
personalizado, en este ejemplo se condiciona el tipo intervalo que se
representa de acuerdo a si se trata de un intervalo infinito o no y
si es abierto o cerrado.
2017 por Fausto M. Lagos S. <piratax007@protonmail.ch>
Este trabajo puede ser distribuido o modificado bajo los
términos y condiciones de la LaTeX Project Public License (LPPL) v1.3C,
o cualquier versión posterior. La última versión de esta licencia
puede verse en:
http://www.latex-project.org/lppl.txt
Usted es libre de usarlo, modificarlo o distribuirlo siempre que se
respeten los términos de la licencia y se reconozca al autor original
Fausto Mauricio Lagos Suárez

Track Changes in LaTeX with trackchanges
Note: TrackChanges is not part of TeX Live, and hasn't been updated in a while. Instead, changes.sty, a package for the same purpose, is available in TeX Live and more recent. You can find the example template here.
TrackChanges is a package for collaboratively editing LaTeX documents which allows multiple editors to make changes & add annotations to a document.
Here we present a short example of it's use, which you can use as a template to get started.
writeLaTeX

Example: Custom Nimbus TTF Font
Example: Custom Nimbus TTF Font

Chinese: A Visit to Qiantang Lake in Spring (钱唐湖春行)
This example shows how to write simplified Chinese characters in LaTeX with the CJKutf8 package. WriteLaTeX includes a full set of fonts for simplified Chinese, and we use utf-8 encoding, so you can type simplified Chinese characters directly into your LaTeX source code and have them appear in the output.
Bai Juyi

Bound States in the Continuum
Poster created for presenting it in a student conference. Happy to share.
Daniel Prelipcean

The first six levels of the Sierpinski triangle
The first six levels of the Sierpinski triangle in LaTeX.
For some beautiful variations (and more information), see http://www.oftenpaper.net/sierpinski.htm
Jake on TeX SE

Example: gnuplot + tikz
This is an example for re-creating gnuplot charts with tikz on LaTeX, made possible by adding gnuplot-lua-tikz.sty and gnuplot-lua-tikz-common.tex to your project. (These files can be generated by invoking lua gnuplot-tikz.lua style where gnuplot-tikz.lua can be found in $GNUPLOT/lua/gnuplot-tikz.lua.
(This will work with all engines, not just LuaLaTeX!)
Gudrun, LianTze Lim

PagedeGardeMem
Page de garde memoire, version arabe, tikz, tcolorbox, polyglossia, fancybox.
SIFI Khedidja