7.19.2 Greatest hits from previous weeks

7.19.2.1 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]http://www.breakthru.... 
[math-mode] [symbols] [math-operators]
 

asked by Alejandro https://tex.stackexchange.com/landing/r/digest?cta=user&id=1128 244 votes

answered by Jan Hlavacek https://tex.stackexchange.com/landing/r/digest?cta=user&id=396 257 votes

7.19.2.2 inputenc Error: Unicode char \u8: not set up for use with LaTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=83440

This is with ref to my previous question Package clash in multilingual report. 
\documentclass[11pt,table,a4paper]{article} 
\usepackage{lmodern} 
\usepackage[utf8]{inputenc} 
\usepackage[T1]{fontenc} 
\... 
[errors] [unicode] [languages] [cyrillic] [input-encodings]
 

asked by Manish https://tex.stackexchange.com/landing/r/digest?cta=user&id=19116 120 votes

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 92 votes

7.19.2.3 What point (pt) font size are \Large etc.?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=24599

In the preamble I have: 
\documentclass[a4paper,11pt]{article} 
\usepackage{fontspec} 
\setmainfont{Arial} 
What can be inferred about the real font pt size for the following? 
\tiny, \scriptsize, \... 
[fontsize] [class-options]
 

asked by Level1Coder https://tex.stackexchange.com/landing/r/digest?cta=user&id=6825 266 votes

answered by Alan Munn https://tex.stackexchange.com/landing/r/digest?cta=user&id=2693 419 votes

7.19.2.4 Reduce space between enumerated items

https://tex.stackexchange.com/landing/r/digest?cta=question&id=6081

Background 
All book figures are set to "here definitely" (as they must come after the text that introduces them). 
Problem 
The list types (enumerated and bullet) have too much space between them. ... 
[spacing] [floats] [lists] [vertical-alignment] [positioning]
 

asked by Dave Jarvis https://tex.stackexchange.com/landing/r/digest?cta=user&id=2148 169 votes

answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 21 votes

7.19.2.5 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 141 votes

7.19.2.6 Using the \tab Command

https://tex.stackexchange.com/landing/r/digest?cta=question&id=198432

I have seen several cases of people using the \tab command to insert a specific amount of space between objects (as opposed to the \hfill command which uses any remaining space).  However, I have ... 
[spacing]
 

asked by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 73 votes

answered by Mathematician https://tex.stackexchange.com/landing/r/digest?cta=user&id=49199 85 votes

7.19.2.7 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 Thomas 122 https://tex.stackexchange.com/landing/r/digest?cta=user&id=11737 109 votes