10.34.2 Greatest hits from previous weeks

10.34.2.1 What point (pt) font size are \Large etc.?
10.34.2.2 How do I put text over symbols?
10.34.2.3 What does the phrase "Underfull \hbox (badness 10000) in paragraph" actually mean?
10.34.2.4 Absolute Value Symbols
10.34.2.5 LaTeX Editors/IDEs
10.34.2.6 Using \footnote in a figure's \caption
10.34.2.7 How do I turn off equation auto numbering
10.34.2.1 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 Score of 295
10.34.2.2 How do I put text over symbols?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=74125

This is difficult for me to explain, but how do I put words over a symbol? For instance, I want to add words over an equal sign. Anyone know the command/syntax for that? 
Also adding ^ doesn't cut it..... 
[syntax]
 
asked by Lemon https://tex.stackexchange.com/landing/r/digest?cta=user&id=10554 Score of 164
answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 Score of 129
10.34.2.3 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] [tex-core] [boxes] [paragraphs] [underfull]
 
asked by Charles Boehm https://tex.stackexchange.com/landing/r/digest?cta=user&id=116447 Score of 130
answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 109
10.34.2.4 Absolute Value Symbols

https://tex.stackexchange.com/landing/r/digest?cta=question&id=43008

What is the "best LaTeX practices" for writing absolute value symbols?  Are there any packages which provide good methods? 
Some options include|x| and \mid x \mid, but I'm not sure which is best... 
[math-mode] [symbols]
 
asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 Score of 322
answered by Peter Grill https://tex.stackexchange.com/landing/r/digest?cta=user&id=4301 Score of 246
10.34.2.5 LaTeX Editors/IDEs

https://tex.stackexchange.com/landing/r/digest?cta=question&id=339

What editors/IDEs are available for easing the process of writing TeX/LaTeX documents? 
Please state some useful features like code completion, spell checking, building final DVI or PDF files, etc. 
... 
[editors] [big-list] [ide] [resources]
 
asked by hayalci https://tex.stackexchange.com/landing/r/digest?cta=user&id=183 Score of 931
answered by YuppieNetworking https://tex.stackexchange.com/landing/r/digest?cta=user&id=146 Score of 365
10.34.2.6 Using \footnote in a figure's \caption

https://tex.stackexchange.com/landing/r/digest?cta=question&id=10181

Maybe this is an easy one, but I struggled with this now too long :) 
I want to have a footnote in a caption of a figure, see the example. 
\begin{figure}[!ht] 
\caption{a figure caption\footnote{... 
[floats] [footnotes] [captions]
 
asked by Matten https://tex.stackexchange.com/landing/r/digest?cta=user&id=1125 Score of 328
answered by Dee https://tex.stackexchange.com/landing/r/digest?cta=user&id=16059 Score of 238
10.34.2.7 How do I turn off equation auto numbering

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2597

I have an equation like this: 
\begin{align} 
P(A \cup B) = \sum_{\omega \in A \cup B} P(\omega) = \sum_{\omega \in A} P(\omega) + \sum_{\omega \in B} P(\omega) 
= P(A) + P(B) 
\end{... 
[equations] [numbering]
 
asked by user1046 https://tex.stackexchange.com/landing/r/digest?cta=user&id=1046 Score of 186
answered by levesque https://tex.stackexchange.com/landing/r/digest?cta=user&id=10 Score of 213