11.32.2 Greatest hits from previous weeks

11.32.2.1 How do you get \mathbb 1  to work (characteristic function of a set)?
11.32.2.2 What is the LaTeX command for "em dash" (a^\200\224)?
11.32.2.3 How to add an extra level of sections with headings below \subsubsection
11.32.2.4 How can I have two tables side by side?
11.32.2.5 How do I put text over symbols?
11.32.2.6 How to change certain pages into landscape/portrait mode
11.32.2.7 How to influence the position of float environments like figure and table in LaTeX?
11.32.2.1 How do you get \mathbb 1  to work (characteristic function of a set)?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=26637

I am trying to get the digit one printed the \mathbb{} font in math mode, however the command 
\mathbb{1} 
outputs some rubbish. I certainly saw the character I am after in some pdf's generated from ... 
[math-mode] [formatting]
 
asked by Grzenio https://tex.stackexchange.com/landing/r/digest?cta=user&id=3329 Score of 263
answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 Score of 288
11.32.2.2 What is the LaTeX command for "em dash" (a^\200\224)?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=53413

I am trying to insert the symbol in the title of the question, which I copied from a PDF article, but it appears as space in the output file. What is the corresponding LaTeX command? 
[symbols] [punctuation]
 
asked by Tarek https://tex.stackexchange.com/landing/r/digest?cta=user&id=13964 Score of 400
answered by Keks Dose https://tex.stackexchange.com/landing/r/digest?cta=user&id=4736 Score of 426
11.32.2.3 How to add an extra level of sections with headings below \subsubsection

https://tex.stackexchange.com/landing/r/digest?cta=question&id=60209

I have a document which requires many levels of sectioning. I have sections, subsections and subsubsections, but require one more level below that. I can't change the sections to be parts and move ... 
[sectioning] [sections-paragraphs]
 
asked by robintw https://tex.stackexchange.com/landing/r/digest?cta=user&id=495 Score of 406
answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 Score of 364
11.32.2.4 How can I have two tables side by side?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2832

Suppose I have two tables that don't have many columns (3, for example). How can I position them side by side? 
[tables] [positioning]
 
asked by bada https://tex.stackexchange.com/landing/r/digest?cta=user&id=572 Score of 251
answered by TH. https://tex.stackexchange.com/landing/r/digest?cta=user&id=647 Score of 224
11.32.2.5 How do I put text over symbols?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=74125

This is difficult for me to explain, but how do I put words over a symbol? For instance, I want to add words over an equal sign. Anyone know the command/syntax for that? 
Also adding ^ doesn't cut it..... 
[syntax]
 
asked by Lemon https://tex.stackexchange.com/landing/r/digest?cta=user&id=10554 Score of 174
answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 Score of 131
11.32.2.6 How to change certain pages into landscape/portrait mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=337

How can I change the orientation of some pages of my document into landscape mode, while leaving the others in portrait mode (or vice versa)? 
[landscape]
 
asked by hayalci https://tex.stackexchange.com/landing/r/digest?cta=user&id=183 Score of 468
answered by rcs https://tex.stackexchange.com/landing/r/digest?cta=user&id=118 Score of 482
11.32.2.7 How to influence the position of float environments like figure and table in LaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=39017

How to influence the position of float environments like figure and table in LaTeX? 
This is a general question and should collect useful answers for all users. I hope we can use this as a reference 
[floats] [positioning]
 
asked by Marco Daniel https://tex.stackexchange.com/landing/r/digest?cta=user&id=5239 Score of 737
answered by Frank Mittelbach https://tex.stackexchange.com/landing/r/digest?cta=user&id=10109 Score of 1056