6.40.2 Greatest hits from previous weeks

6.40.2.1 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]  ... 
[math-mode] [symbols] [math-operators]
 

asked by Alejandro https://tex.stackexchange.com/landing/r/digest?cta=user&id=1128 227 votes

answered by Jan Hlavacek https://tex.stackexchange.com/landing/r/digest?cta=user&id=396 233 votes

6.40.2.2 Double line spacing

https://tex.stackexchange.com/landing/r/digest?cta=question&id=819

I would like to typeset a draft of my document with double linespacing so that my collaborators have space to write in their edits (with a pen).  How do I do it? 
[line-spacing] [setspace]
 

asked by Vebjorn Ljosa https://tex.stackexchange.com/landing/r/digest?cta=user&id=35 202 votes

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 150 votes

6.40.2.3 Forcing linebreaks in \url

https://tex.stackexchange.com/landing/r/digest?cta=question&id=3033

This question led to a new package: 
xurl 
I wish to typeset some relatively long URLs in a piece of text, and when I use \url{..}, the resulting text does not respect the margin boundaries that  ... 
[line-breaking] [urls]
 

asked by Suresh https://tex.stackexchange.com/landing/r/digest?cta=user&id=103 257 votes

answered by Suresh https://tex.stackexchange.com/landing/r/digest?cta=user&id=103 201 votes

6.40.2.4 How do I change the `enumerate` list format to use letters instead of the default Arabic numerals?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2291

I've seen documentation whereby an \alph command is put around the \begin{enumerate} somewhere, but I'm not entirely sure how that operates... 
[numbering] [lists] [enumerate]
 

asked by Billy ONeal https://tex.stackexchange.com/landing/r/digest?cta=user&id=192 326 votes

answered by frabjous https://tex.stackexchange.com/landing/r/digest?cta=user&id=411 279 votes

6.40.2.5 Change image size

https://tex.stackexchange.com/landing/r/digest?cta=question&id=64836

I'm trying to change the image size (make it look smaller than the original). 
I tried with the next code but the image still shows at its original size. 
\begin{figure}[h!] 
\centering 
... 
[graphics]
 

asked by Enrique https://tex.stackexchange.com/landing/r/digest?cta=user&id=16973 76 votes

answered by DJJerome https://tex.stackexchange.com/landing/r/digest?cta=user&id=2863 73 votes

6.40.2.6 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 122 votes

answered by skpblack https://tex.stackexchange.com/landing/r/digest?cta=user&id=42912 187 votes

6.40.2.7 How do I align an image to centre?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=53862

How do I align an image to centre? 
In a beamer presentation I have a 2-3 items on a slide followed by an image. 
The image is not wide enough to cover whole slide, so it leaves around 30% space from  ... 
[beamer] [horizontal-alignment]
 

asked by epsilon8 https://tex.stackexchange.com/landing/r/digest?cta=user&id=12860 58 votes