5.12.2 Greatest hits from previous weeks

5.12.2.1 What is the "correct" way of embedding text into math mode?
5.12.2.2 Omitting the date when using \maketitle
5.12.2.3 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?
5.12.2.4 When should I use \input vs. \include?
5.12.2.5 Underscores in words (text)
5.12.2.6 Reduce space between enumerated items
5.12.2.7 Tabular: title above and caption below?
5.12.2.1 What is the "correct" way of embedding text into math mode?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=3415

Lets say I have something like: 
\[ Let x = number of cats \] 
(This is a contrived example, but pretend we are actually inside a long align environment block...) "Let" and "number of cats" need to  ... 
[math-mode]
 
asked by Billy ONeal https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=192 200 votes
answered by Michael Underwood https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=32 181 votes
5.12.2.2 Omitting the date when using \maketitle

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=2760

I'm using the \author and \title commands to produce a title with \maketitle. I also know that there is a \date command to specify the date of my work. However, if I omit \date, \maketitle will  ... 
[titles] [datetime]
 
asked by lockstep https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=510 241 votes
answered by frabjous https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=411 222 votes
5.12.2.3 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=10863

I have a table that is just a little too wide for a 3.33" column. Is there a way to simply shrink the table a little to make it fit? I'm OK if the 10pt font becomes 9pt-something. Here is an example. 
... 
[tables] [scaling]
 
asked by Nathan Farrington https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=3504 111 votes
answered by Martin Scharrer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2975 161 votes
5.12.2.4 When should I use \input vs. \include?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=246

There are two different commands to incorporate another file into the source of some document, \input and \include. When should I use one or the other? What are the differences between them? Are there  ... 
[include] [input]
 
asked by Phil Miller https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=60 1006 votes
answered by Michael Mrozek https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=29 878 votes
5.12.2.5 Underscores in words (text)

https://tex.stackexchange.com/landing/r/newsletter?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: 
... 
[characters] [typewriter]
 
asked by Flux Capacitor https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=11728 161 votes
answered by David Carlisle https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1090 138 votes
5.12.2.6 Reduce space between enumerated items

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

Background 
A book with lots of images. All of the images are set to "here definitely" (as they must come after the text that introduces them). 
Problem 
The list types (enumerated and bullet) have  ... 
[spacing] [floats] [lists] [vertical-alignment] [positioning]
 
asked by Dave Jarvis https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2148 104 votes
answered by lockstep https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=510 16 votes
5.12.2.7 Tabular: title above and caption below?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=15282

I have a table that I would like to put the Title above and a caption below. Intuitively (though I know how troublesome intuition can be in something like LaTeX), I should be able to do as below: 
... 
[tables] [captions]
 
asked by Alec https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2457 55 votes
answered by Alan Munn https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2693 35 votes