4.15.2 Greatest hits from previous weeks

4.15.2.1 How to write a function (piecewise) with bracket outside?

https://tex.stackexchange.com/landing/r/newsletter?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/newsletter?cta=user&id=5314 93 votes

answered by Ant https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=6984 126 votes

4.15.2.2 Using the \tab Command

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=198432

I have seen several cases of people using the \tab command to insert a specific amount of space between objects (as opposed to the \hfill command which uses any remaining space).  However, I have  ... 
[spacing]
 

asked by Mathematician https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=49199 25 votes

answered by Mathematician https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=49199 20 votes

4.15.2.3 Force figure placement in text

https://tex.stackexchange.com/landing/r/newsletter?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/newsletter?cta=user&id=2755 347 votes

answered by Juan A. Navarro https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=169 421 votes

4.15.2.4 Is there a way to slightly shrink a table, including font size, to fit within the column boundaries?

https://tex.stackexchange.com/landing/r/newsletter?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/newsletter?cta=user&id=3504 95 votes

answered by Martin Scharrer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2975 138 votes

4.15.2.5 Table with multiple lines in some cells

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=40561

What is the easiest way to have 2 lines in some of the cells in a table? 
The only way I can think right now is to actually have 2 separate rows (without the line in the middle) and use \multirow on  ... 
[tables]
 

asked by Grzenio https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=3329 78 votes

answered by Werner https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5764 70 votes

4.15.2.6 What are all the font styles I can use in math mode?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=58098

As can be seen in above picture, there are lots of fonts or font styles that can be used in math mode. 
What are all the fonts or font styles I can use in math mode, and which packages are required  ... 
[fonts] [math-mode] [big-list] [latin-modern] [computer-modern]
 

asked by doncherry https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=4012 310 votes

answered by Christian https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=13450 408 votes

4.15.2.7 What is the degree symbol?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=384873

In order to have the following output involving the degree symbol 
I can try 
\documentclass{report} 
\begin{document} 
The angle is 30$^\circ$. 
\end{document} 
However, this is an awkward manner to  ... 
[typography] [degrees]
 

asked by Viesturs https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=114719 27 votes

answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2388 27 votes