Hi guys, I've just registered in here, It's a pleasure.
The point is, I've done this question in StackExchange but no one has answered, so I think maybe you can help me.
Thank you all!
Texmaker and TeXstudio ⇒ About default snippets in TexMaker
Learn LaTeX easily with newest books:
The LaTeX Beginner's Guide: 2nd edition and perfect for students writing a thesis
The LaTeX Cookbook: 2nd edition full of practical examples for mathematics, physics, chemistry, and more
LaTeX Graphics with TikZ: the first book about TikZ for perfect drawings in your LaTeX thesis