9.67.2 Greatest hits from previous weeks

9.67.2.1 Problem with compiling BibTex: "no \citation commands" error

https://tex.stackexchange.com/landing/r/digest?cta=question&id=18045

I'm really new to BibTex, I just wonder what is going wrong when I have this kind of error when I try to compile my bibliography file. 
I found no \citation commands---while reading file masterthesis.... 
[bibliographies] [bibtex]
 

asked by zfm https://tex.stackexchange.com/landing/r/digest?cta=user&id=3559 Score of 114

answered by Spike https://tex.stackexchange.com/landing/r/digest?cta=user&id=5150 Score of 45

9.67.2.2 inputenc Error: Unicode char \u8: not set up for use with LaTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=83440

This is with ref to my previous question Package clash in multilingual report. 
\documentclass[11pt,table,a4paper]{article} 
\usepackage{lmodern} 
\usepackage[utf8]{inputenc} 
\usepackage[T1]{fontenc} 
\... 
[errors] [unicode] [languages] [cyrillic] [input-encodings]
 

asked by Manish https://tex.stackexchange.com/landing/r/digest?cta=user&id=19116 Score of 133

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 101

9.67.2.3 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 Score of 233

answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 152

9.67.2.4 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 157

answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 171

9.67.2.5 Force figure placement in text

https://tex.stackexchange.com/landing/r/digest?cta=question&id=8625

I have a problem when a lot of figures are in question. Some figures tend to "fly around", that is, be a paragraph below, although I placed them before that paragraph. I use code: 
\begin{figure}[ht] 
\... 
[floats] [positioning] [captions]
 

asked by Marin https://tex.stackexchange.com/landing/r/digest?cta=user&id=2755 Score of 660

answered by Juan A. Navarro https://tex.stackexchange.com/landing/r/digest?cta=user&id=169 Score of 804

9.67.2.6 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 117

answered by David Carlisle https://tex.stackexchange.com/landing/r/digest?cta=user&id=1090 Score of 96

9.67.2.7 Double line spacing

https://tex.stackexchange.com/landing/r/digest?cta=question&id=819

I would like to typeset a draft of my document with double linespacing so that my collaborators have space to write in their edits (with a pen).  How do I do it? 
[line-spacing] [setspace]
 

asked by Vebjorn Ljosa https://tex.stackexchange.com/landing/r/digest?cta=user&id=35 Score of 244

answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 Score of 178