Tutorial by Examples

\documentclass{article} When to use the article class ? For articles in scientific journals, presentations, short reports, program documentation, invitations, ... 1 What are the specificities of this class ? An article doesn't contain chapters or parts. It can be divided in sections, subsectio...

\documentclass{beamer} When to use the beamer class ? For presentation slides. What are the specificities of this class ? The output is landscape-oriented. The document is separated in "frames" (slides). Simple example Following example was adapted from : sharelatex.com/learn/Beame...

The very first line in each of your LaTeX programs should do this. It should follow the form \documentclass{...}. What you put within the curly braces is very important. Some document classes give you extra commands to use, others use a different format, and all have specific parameters you can inp...