8.18.2 Greatest hits from previous weeks

8.18.2.1 The \bar and \overline commands
8.18.2.2 How do I align an image to center?
8.18.2.3 Is there any way to do a correct word count of a LaTeX document?
8.18.2.4 Scale image to page width?
8.18.2.5 Tabular: title above and caption below?
8.18.2.6 Force figure placement in text
8.18.2.7 How to align a set of multiline equations
8.18.2.1 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 Score of 169
answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 92
8.18.2.2 How do I align an image to center?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=53862

How do I align an image to center? 
In a beamer presentation I have a 2-3 items on a slide followed by an image. 
The image is not wide enough to cover whole slide, so it leaves around 30% space from ... 
[beamer] [horizontal-alignment]
 
asked by epsilon8 https://tex.stackexchange.com/landing/r/digest?cta=user&id=12860 Score of 74
8.18.2.3 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 Score of 401
answered by ShreevatsaR https://tex.stackexchange.com/landing/r/digest?cta=user&id=48 Score of 213
8.18.2.4 Scale image to page width?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=39147

I use 
\inclugraphics[scale=TRYING TO GUESS THE NUMBER FOR PAGE WIDTH]{...} 
but I find this errorsome, is there some ready flag to set the image to page width? I usually use PNG and JPG photos. 
[graphics] [scaling]
 
asked by hhh https://tex.stackexchange.com/landing/r/digest?cta=user&id=2956 Score of 264
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 244
8.18.2.5 Tabular: title above and caption below?

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=2457 Score of 74
answered by Alan Munn https://tex.stackexchange.com/landing/r/digest?cta=user&id=2693 Score of 51
8.18.2.6 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 586
answered by Juan A. Navarro https://tex.stackexchange.com/landing/r/digest?cta=user&id=169 Score of 715
8.18.2.7 How to align a set of multiline equations

https://tex.stackexchange.com/landing/r/digest?cta=question&id=44450

I am trying to align a set of long equations, that are themselves align environments as most of them are spreading on multiple lines. 
Currently I just have a sequence of align environments, with ... 
[equations] [align]
 
asked by Thomas 122 https://tex.stackexchange.com/landing/r/digest?cta=user&id=11737 Score of 120
answered by barbara beeton https://tex.stackexchange.com/landing/r/digest?cta=user&id=579 Score of 74