5.33.2 Greatest hits from previous weeks

5.33.2.1 How to typeset subscript in usual text mode?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=1013

It's easy to make subscripts in math mode: $a_i$. 
How do I make a subscript outside math environment, likethis? 
[subscripts]
 

asked by P Shved https://tex.stackexchange.com/landing/r/digest?cta=user&id=280 216 votes

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 137 votes

5.33.2.2 Nice scientific pictures show off

https://tex.stackexchange.com/landing/r/digest?cta=question&id=158668

Task 
Show off your best scientific illustration ! 
The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. 
Content 
Your post must  ... 
[diagrams] [3d] [technical-drawing] [fun] [big-list]
 

asked by Thomas https://tex.stackexchange.com/landing/r/digest?cta=user&id=42660 493 votes

answered by Charles Staats https://tex.stackexchange.com/landing/r/digest?cta=user&id=484 295 votes

5.33.2.3 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 159 votes

5.33.2.4 What is the degree symbol?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=384873

In order to have the following output involving the degree symbol 
I can try 
\documentclass{report} 
\begin{document} 
The angle is 30$^\circ$. 
\end{document} 
However, this is an awkward manner to  ... 
[typography] [degrees]
 

asked by Viesturs https://tex.stackexchange.com/landing/r/digest?cta=user&id=114719 67 votes

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 61 votes

5.33.2.5 When should I use \input vs. \include?

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=60 1075 votes

answered by Michael Mrozek https://tex.stackexchange.com/landing/r/digest?cta=user&id=29 943 votes

5.33.2.6 What are the available "documentclass" types and their uses?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=782

Some of the available classes of documents in LaTeX are well known and widely used, such as the article and beamer classes, while others are not so well known, such as the standalone class. 
I found  ... 
[document-classes] [big-list]
 

asked by Vivi https://tex.stackexchange.com/landing/r/digest?cta=user&id=14 392 votes

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 141 votes

5.33.2.7 Is there any way to do a correct word count of a LaTeX document?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=534

Often assignments (or even papers) have a word count limit. That is not a big deal when using Word, but I don't know how to do that using LaTeX. My solution has been so far to compile the document and  ... 
[packages] [compiling] [word-count] [scripts]
 

asked by Vivi https://tex.stackexchange.com/landing/r/digest?cta=user&id=14 348 votes

answered by ShreevatsaR https://tex.stackexchange.com/landing/r/digest?cta=user&id=48 186 votes