Is there any official site, mobile application or software for looking up latex (and its packages) commands and their syntax in it as Matlab Software done it in it's help.
Brief description with some example for its syntax seems be very necessary for this excellent editor.
By the way there is glossary of LaTeX on Wikibooks but it isn't much user-friendly as I expected.
[Tex/LaTex] LaTeX help and command glossary
latex-misc
Best Answer
Some editors have this functionality. For example with texstudio one can simply mouse hover a command/environment and for many (most?) one will get a brief description: