9.28.2 Greatest hits from previous weeks

9.28.2.1 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 232

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 197

9.28.2.2 Big Parenthesis in an Equation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=38868

I have an equation contained inside \[...\], which automatically makes a \sum with sub- and superscripts turn big--so that the summation sign looks awkward inside parenthesis.  Any idea how to make ... 
[math-mode] [delimiters]
 

asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 Score of 251

answered by qubyte https://tex.stackexchange.com/landing/r/digest?cta=user&id=9043 Score of 367

9.28.2.3 How to add an empty line between paragraphs?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=135134

I have two sections which I'd like to separate by an empty line. Every time I press Enter, LyX removes that empty line between paragraphs. How do I prevent this? 
[spacing] [lyx]
 

asked by goldisfine https://tex.stackexchange.com/landing/r/digest?cta=user&id=37301 Score of 151

answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 167

9.28.2.4 How can I have two tables side by side?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2832

Suppose I have two tables that don't have many columns (3, for example). How can I position them side by side? 
[tables] [positioning]
 

asked by bada https://tex.stackexchange.com/landing/r/digest?cta=user&id=572 Score of 226

answered by TH. https://tex.stackexchange.com/landing/r/digest?cta=user&id=647 Score of 204

9.28.2.5 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 138

answered by Cain https://tex.stackexchange.com/landing/r/digest?cta=user&id=28428 Score of 191

9.28.2.6 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 230

answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 150

9.28.2.7 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 107

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 87