10.66.2 Greatest hits from previous weeks

10.66.2.1 How to write a function (piecewise) with bracket outside?
10.66.2.2 Which dot character to use in which context?
10.66.2.3 Force figure placement in text
10.66.2.4 Superscript outside math mode
10.66.2.5 Putting two images beside each other
10.66.2.6 How to add todo notes?
10.66.2.7 LaTeX Editors/IDEs
10.66.2.1 How to write a function (piecewise) with bracket outside?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=32140

How to write this Piecewise function using LaTeX? 
I tried 
$ 
\begin{array}{cc} 
\{ & 
\begin{array}{cc} 
0 & x\leq 0 \\ 
\frac{100-x}{100} & 0\leq x\leq 100 \\ 
0 & ... 
[math-mode] [equations] [brackets]
 
asked by GarouDan https://tex.stackexchange.com/landing/r/digest?cta=user&id=5314 Score of 217
answered by Ant https://tex.stackexchange.com/landing/r/digest?cta=user&id=6984 Score of 266
10.66.2.2 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 239
answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 156
10.66.2.3 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 683
answered by Juan A. Navarro https://tex.stackexchange.com/landing/r/digest?cta=user&id=169 Score of 837
10.66.2.4 Superscript outside math mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=47324

What is the easiest way to superscript text outside of math mode? 
For example, let's say I want to write the $n^{th}$ element, but without the math mode's automatic italicization of the th.  And what ... 
[superscripts]
 
asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 Score of 576
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 836
10.66.2.5 Putting two images beside each other

https://tex.stackexchange.com/landing/r/digest?cta=question&id=148438

If I want to put two images beside each other, what should I do? I have inserted a figure. But, rather than having the next figure on a new line, I want it to be beside the already inserted figure. ... 
[graphics] [floats] [positioning]
 
asked by Simplicity https://tex.stackexchange.com/landing/r/digest?cta=user&id=28871 Score of 85
answered by Masroor https://tex.stackexchange.com/landing/r/digest?cta=user&id=14103 Score of 188
10.66.2.6 How to add todo notes?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=9796

Is there a simple way to add todo notes to LaTeX documents ? 
I would like to have these notes in red in the generated pdf and a simple syntax to write them. 
[todonotes]
 
asked by aneuryzm https://tex.stackexchange.com/landing/r/digest?cta=user&id=3182 Score of 352
10.66.2.7 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 935
answered by YuppieNetworking https://tex.stackexchange.com/landing/r/digest?cta=user&id=146 Score of 366