6.8.2 Greatest hits from previous weeks

6.8.2.1 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?
6.8.2.2 How to add an extra level of sections with headings below \subsubsection
6.8.2.3 Package natbib Error: Bibliography not compatible with author-year citations
6.8.2.4 The \bar and \overline commands
6.8.2.5 How to use \multirow
6.8.2.6 What are the available "documentclass" types and their uses?
6.8.2.7 Change line spacing inside the document
6.8.2.1 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=3504 123 votes
answered by Martin Scharrer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2975 184 votes
6.8.2.2 How to add an extra level of sections with headings below \subsubsection

https://tex.stackexchange.com/landing/r/digest?cta=question&id=60209

I have a document which requires many levels of sectioning. I have sections, subsections and subsubsections, but require one more level below that. I can't change the sections to be parts and move  ... 
[sectioning] [sections-paragraphs]
 
asked by robintw https://tex.stackexchange.com/landing/r/digest?cta=user&id=495 258 votes
answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 224 votes
6.8.2.3 Package natbib Error: Bibliography not compatible with author-year citations

https://tex.stackexchange.com/landing/r/digest?cta=question&id=54480

I have a basic tex file and a bibliography which is exported from Mendeley 
However, when I want to cite in the author-year style, I get the error: 
Package natbib Error: Bibliography not compatible  ... 
[bibtex] [errors] [natbib]
 
asked by grrrbytes https://tex.stackexchange.com/landing/r/digest?cta=user&id=13217 214 votes
answered by Josh Porter https://tex.stackexchange.com/landing/r/digest?cta=user&id=15128 119 votes
6.8.2.4 The \bar and \overline commands

https://tex.stackexchange.com/landing/r/digest?cta=question&id=22100

I want to represent, say, the closure of a set or the extended reals, e.g., $\bar{\mathbb{R}}$ but unfortunately this creates a bar that is much too small (horizontally) and can barely be seen. On the  ... 
[stacking-symbols]
 
asked by 3Sphere https://tex.stackexchange.com/landing/r/digest?cta=user&id=6487 137 votes
answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 78 votes
6.8.2.5 How to use \multirow

https://tex.stackexchange.com/landing/r/digest?cta=question&id=73283

I can compile this table separately but when I want to compile the whole file, it gives me an error, which is fixed by removing \multirow. 
\usepackage{multirow} 
\begin{table}[htbp] 
\begin{center} 
... 
[tables] [multirow]
 
asked by anna https://tex.stackexchange.com/landing/r/digest?cta=user&id=18922 85 votes
answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/digest?cta=user&id=3954 141 votes
6.8.2.6 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=14 401 votes
answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 144 votes
6.8.2.7 Change line spacing inside the document

https://tex.stackexchange.com/landing/r/digest?cta=question&id=83855

This is my code 
\documentclass[12pt,a4paper]{book} 
\renewcommand{\baselinestretch}{1.5} 
\begin{document} 
\include{Chapter1} 
\end{document} 
I have please a question: 
I would change the line  ... 
[line-spacing]
 
asked by researcher https://tex.stackexchange.com/landing/r/digest?cta=user&id=16097 108 votes