9.4.2 Greatest hits from previous weeks

9.4.2.1 Real number symbol (UTF-8: a^\204\235) in XeTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=104274

How can I get the 'real number' sign (something like \mathbb{R} with the amssymb package in LaTeX) in XeTeX? 
[math-mode] [xetex] [symbols] [amsmath] [plain-tex]
 

asked by lvaneesbeeck https://tex.stackexchange.com/landing/r/digest?cta=user&id=24686 Score of 167

answered by lvaneesbeeck https://tex.stackexchange.com/landing/r/digest?cta=user&id=24686 Score of 11

9.4.2.2 What does the phrase "Underfull \hbox (badness 10000) in paragraph" actually mean?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=334246

What does the actual phrase above mean? 
[errors]
 

asked by Charles Boehm https://tex.stackexchange.com/landing/r/digest?cta=user&id=116447 Score of 100

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 80

9.4.2.3 How to write two dot above a letter?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=152951

the two dots above a letter represents two derivative of varible t. 
My method: 
\documentclass[UTF8]{ctexart} 
\usepackage{amsmath} 
\usepackage{amssymb} 
\usepackage{graphicx} 
\usepackage{epstopdf} 
\... 
[math-mode] [accents]
 

asked by mma https://tex.stackexchange.com/landing/r/digest?cta=user&id=43727 Score of 134

answered by Cain https://tex.stackexchange.com/landing/r/digest?cta=user&id=28428 Score of 187

9.4.2.4 Math symbol question: Vertical bar for ''evaluated at ...''

https://tex.stackexchange.com/landing/r/digest?cta=question&id=40160

How do I insert the line "|" after the equation in LaTeX (see image below)? 
I'm using LyX so if you can point me to the symbol of that line is also OK. 
I don't know if this line has a proper name so ... 
[math-mode] [symbols] [lyx]
 

asked by rasgo https://tex.stackexchange.com/landing/r/digest?cta=user&id=10511 Score of 184

9.4.2.5 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 Score of 199

answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 Score of 25

9.4.2.6 Integrating Grammarly with online LaTeX editors such as overleaf?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=333947

Grammarly does not work with LaTex, but I believe it still can be helpful: 
I like to use Grammarly Chrome extension with an online Latex editor. I tried sharelatex, overleaf , authorea and verbosus ... 
[tools] [online] [grammar]
 

asked by Woeitg https://tex.stackexchange.com/landing/r/digest?cta=user&id=93219 Score of 140

answered by Robin Dijkhof https://tex.stackexchange.com/landing/r/digest?cta=user&id=225959 Score of 117

9.4.2.7 Changing the font size in a table

https://tex.stackexchange.com/landing/r/digest?cta=question&id=27097

What's the recommend way of changing the font size in a particular table? Is there a better way than enclosing all values with, for example, the \tiny function. 
[tables] [floats] [fontsize]
                                                                                  

                                                                                  
 

asked by csgillespie https://tex.stackexchange.com/landing/r/digest?cta=user&id=224 Score of 237

answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 Score of 150