6.76.2 Greatest hits from previous weeks

6.76.2.1 How to write cases with LaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=240868

The code i used to write 
is this one 
$$ 
X(m,n)= 
\begin{cases} 
x(n),\\ 
x(n-1)\\ 
x(n-1) 
\end{cases} 
$$ 
But I don't know how to write this one 
I appreciate any help. 
Edited: I'm sorry to add this ... 
[math-mode] [cases]
 

asked by MaryA~ https://tex.stackexchange.com/landing/r/digest?cta=user&id=65856 157 votes

answered by Ignasi https://tex.stackexchange.com/landing/r/digest?cta=user&id=1952 115 votes

6.76.2.2 TeXnicCenter & Adobe Reader DC

https://tex.stackexchange.com/landing/r/digest?cta=question&id=250472

How to configure TeXnicCenter to work with Adobe Reader DC? When I building and view current file .tex the following error "Can not execute the command" shows up and the PDF is not generated. 
If ... 
[pdf] [texniccenter] [adobe]
 

asked by Walter Silva https://tex.stackexchange.com/landing/r/digest?cta=user&id=80192 57 votes

answered by JiAo\231A~\[DiscretionaryHyphen] ChmelA~\[DiscretionaryHyphen]k https://tex.stackexchange.com/landing/r/digest?cta=user&id=82051 76 votes

6.76.2.3 Commenting out large sections

https://tex.stackexchange.com/landing/r/digest?cta=question&id=17816

To "comment out" a line, I need to insert a % at the beginning of the line (so that the line will not be compiled). 
Is there a way to comment out a large section without having to manually ... 
[comments]
 

asked by user5419 https://tex.stackexchange.com/landing/r/digest?cta=user&id=5419 359 votes

answered by Martin Scharrer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2975 283 votes

6.76.2.4 Syntax similar to \centering for right and left?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=91566

For images we can use \centering is there anything to position the image to right side or left side of the page. 
[graphics] [horizontal-alignment]
 

asked by sachin irukula https://tex.stackexchange.com/landing/r/digest?cta=user&id=24343 137 votes

6.76.2.5 Using multicolumn in latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=131867

I want to create a table like this using Latex 
|               sets            | 
| 1 | 2 | 3 | 4 | 5 | 6 | ... 
[multicolumn]
 

asked by mahmood https://tex.stackexchange.com/landing/r/digest?cta=user&id=36294 76 votes

6.76.2.6 How to prevent LaTeX from hyphenating the entire document?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=5036

I can't find where I can remove any kind of hyphenation and just have LaTeX just do a line break. 
edit: 
Honestly speaking I just don't like to read hyphenation anywhere and that's the only reason why ... 
[hyphenation]
 

asked by Splashy https://tex.stackexchange.com/landing/r/digest?cta=user&id=1713 203 votes

6.76.2.7 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=495 304 votes

answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 265 votes