6.62.2 Greatest hits from previous weeks

6.62.2.1 Absolute Value Symbols

https://tex.stackexchange.com/landing/r/digest?cta=question&id=43008

What is the "best LaTeX practices" for writing absolute value symbols?  Are there any packages which provide good methods? 
Some options include|x| and \mid x \mid, but I'm not sure which is best... 
[math-mode] [symbols]
 

asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 266 votes

answered by Peter Grill https://tex.stackexchange.com/landing/r/digest?cta=user&id=4301 198 votes

6.62.2.2 The \bar and \overline commands

https://tex.stackexchange.com/landing/r/digest?cta=question&id=22100

I want to represent, say, the closure of a set or the extended reals, e.g., $\bar{\mathbb{R}}$ but unfortunately this creates a bar that is much too small (horizontally) and can barely be seen. On the ... 
[stacking-symbols]
 

asked by 3Sphere https://tex.stackexchange.com/landing/r/digest?cta=user&id=6487 149 votes

answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 83 votes

6.62.2.3 Write pseudo code in latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=163768

I am trying to write pseudo code in my paper. Here is the snippet and image like what I want.  Can some one please help me to format it. 
\begin{algorithm} 
\caption{Euclida^\200\231s algorithm}\label{euclid} 
\... 
[algorithms]
 

asked by cyclic https://tex.stackexchange.com/landing/r/digest?cta=user&id=47334 115 votes

answered by karlkoeller https://tex.stackexchange.com/landing/r/digest?cta=user&id=27635 159 votes

6.62.2.4 Show equation number only once in align environment

https://tex.stackexchange.com/landing/r/digest?cta=question&id=17528

I want the equation number to be shown only at the last line, or better, somewhere in the middle of all. So instead of (1), (2), ... only (1). 
I use \begin{align} ... \end{align} 
[equations] [align]
 

asked by Theta30 https://tex.stackexchange.com/landing/r/digest?cta=user&id=5350 202 votes

answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 182 votes

6.62.2.5 Crop an inserted image?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=57418

I'm inserting an image with a simple: 
\includegraphics[height=5cm]{filename.png} 
This results in an image that maintains the aspect ratio, and so gives me something like 6cm width. I only really ... 
[graphics] [crop]
 

asked by naught101 https://tex.stackexchange.com/landing/r/digest?cta=user&id=13192 223 votes

6.62.2.6 Why does \\ not return a new line in an equation?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=194236

\begin{equation*}\label{eq:pareto mle2} 
A_0 = \frac{1}{(\alpha+t_x)^{r+s+x}}{}_2F_1\left(r+s+x,x+1;r+s+x+1;\frac{\alpha-\beta}{\alpha + t_x} \right ) "\\\" <br> 
- \frac{1}{(\alpha+T)^{r+s+x}}{}... 
[equations] [line-breaking]
 

asked by user3714137 https://tex.stackexchange.com/landing/r/digest?cta=user&id=60029 81 votes

answered by Mico https://tex.stackexchange.com/landing/r/digest?cta=user&id=5001 43 votes

6.62.2.7 Subfigures side by side with captions

https://tex.stackexchange.com/landing/r/digest?cta=question&id=119984

I am using the following code to put my two figures side by side with different captions, 
\begin{figure*}[t!] 
\centering 
\begin{subfigure}[b]{0.5\textwidth} 
\centering 
\... 
[captions] [subfloats]
 

asked by Sait https://tex.stackexchange.com/landing/r/digest?cta=user&id=14611 98 votes

answered by latex user https://tex.stackexchange.com/landing/r/digest?cta=user&id=25372 134 votes