10.41.2 Greatest hits from previous weeks

10.41.2.1 How to align a set of multiline equations
10.41.2.2 Matrix in Latex
10.41.2.3 Syntax similar to \centering for right and left?
10.41.2.4 Underscores in words (text)
10.41.2.5 Which dot character to use in which context?
10.41.2.6 Command for argmin or argmax?
10.41.2.7 How to add indentation
10.41.2.1 How to align a set of multiline equations

https://tex.stackexchange.com/landing/r/digest?cta=question&id=44450

I am trying to align a set of long equations, that are themselves align environments as most of them are spreading on multiple lines. 
Currently I just have a sequence of align environments, with ... 
[equations] [align]
 
asked by SeismicVibrations https://tex.stackexchange.com/landing/r/digest?cta=user&id=11737 Score of 134
10.41.2.2 Matrix in Latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=204621

I am new to Latex, and I have been trying to get the matrix of following form 
[x11 x12 x13 . . . . x1n 
x21 x22 x23 . . . . x2n 
. 
. 
. 
. 
xd1 xd2 xd3 . . . . xdn] 
... 
[matrices]
 
asked by Lakshmi Narayanan https://tex.stackexchange.com/landing/r/digest?cta=user&id=63361 Score of 149
answered by skpblack https://tex.stackexchange.com/landing/r/digest?cta=user&id=42912 Score of 218
10.41.2.3 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 available to align the image to the right side or the left side of the page. 
[graphics] [horizontal-alignment]
 
asked by sachin irukula https://tex.stackexchange.com/landing/r/digest?cta=user&id=24343 Score of 185
10.41.2.4 Underscores in words (text)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=48632

How can I produce the text Word_one_two in LaTeX? 
I tried: 
Samp\_Dist\_Corr 
But, it doesn't quite look right. Also, I want it in the typewriter font, so actually, I'm doing: 
\texttt{Samp\_Dist\... 
[characters] [typewriter]
 
asked by Flux Capacitor https://tex.stackexchange.com/landing/r/digest?cta=user&id=11728 Score of 246
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 204
10.41.2.5 Which dot character to use in which context?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=19180

Wikipedia lists several dot characters in Unicode.  These are the ones that are ambiguous to me: 
interpunct, middle dot (A^\[CenterDot])   ·   ·   U+00B7   "midpoint (in typography)" 
... 
[symbols] [best-practices] [punctuation] [unicode] [unicode-math]
 
asked by endolith https://tex.stackexchange.com/landing/r/digest?cta=user&id=5773 Score of 238
answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 156
10.41.2.6 Command for argmin or argmax?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=5223

How can you get the argmin or argmax in Latex? Two solutions I found are: 
\underset{x}{\operatorname{argmax}} 
\DeclareMathOperator*{\argmin}{arg\,min} 
Any other ideas? 
[1]http://www.breakthru.... 
[math-mode] [symbols] [math-operators]
 
asked by Alejandro https://tex.stackexchange.com/landing/r/digest?cta=user&id=1128 Score of 312
answered by Jan Hlavacek https://tex.stackexchange.com/landing/r/digest?cta=user&id=396 Score of 349
10.41.2.7 How to add indentation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=45501

I am writing a thesis report using LaTeX and I need to add indentations because every new paragraph starts from the initial position on the left. 
How do I add indentations? 
[spacing] [indentation]
 
asked by pavani https://tex.stackexchange.com/landing/r/digest?cta=user&id=9327 Score of 149
answered by Frank Mittelbach https://tex.stackexchange.com/landing/r/digest?cta=user&id=10109 Score of 97