5.37.2 Greatest hits from previous weeks

5.37.2.1 Matrix in Latex
5.37.2.2 What is the degree symbol?
5.37.2.3 Multi-line (block) comments in LaTeX
5.37.2.4 Force figure placement in text
5.37.2.5 How can I make an enumerate list start at something other than 1?
5.37.2.6 Double line spacing
5.37.2.7 Nice scientific pictures show off
5.37.2.1 Matrix in Latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=204621

I am new to Latex, and I have been trying to get the matrix of following form 
[x11 x12 x13 . . . . x1n 
x21 x22 x23 . . . . x2n 
. 
. 
. 
. 
xd1 xd2 xd3 . . . . xdn] 
... 
[matrices]
 
asked by Lakshmi Narayanan https://tex.stackexchange.com/landing/r/digest?cta=user&id=63361 109 votes
answered by skpblack https://tex.stackexchange.com/landing/r/digest?cta=user&id=42912 168 votes
5.37.2.2 What is the degree symbol?

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=114719 69 votes
answered by Ulrike Fischer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2388 62 votes
5.37.2.3 Multi-line (block) comments in LaTeX

https://tex.stackexchange.com/landing/r/digest?cta=question&id=87303

In LaTeX, % can be used for single-line comments. For multi-line comments, the following command is available in the verbatim package. 
\begin{comment} 
Commented code 
\end{comment} 
But is there a  ... 
[comments]
 
asked by Arindam Pal https://tex.stackexchange.com/landing/r/digest?cta=user&id=17379 199 votes
answered by guillem https://tex.stackexchange.com/landing/r/digest?cta=user&id=3941 152 votes
5.37.2.4 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 454 votes
answered by Juan A. Navarro https://tex.stackexchange.com/landing/r/digest?cta=user&id=169 551 votes
5.37.2.5 How can I make an enumerate list start at something other than 1?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=142

Sometimes, I want to have enumerate lists in LaTeX start at other than the first value (1, a, i, etc.) How can I make an enumerate list start at an arbitrary value? 
[lists] [numbering] [enumerate]
 
asked by vanden https://tex.stackexchange.com/landing/r/digest?cta=user&id=93 375 votes
answered by ShreevatsaR https://tex.stackexchange.com/landing/r/digest?cta=user&id=48 450 votes
5.37.2.6 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=35 190 votes
answered by Stefan Kottwitz https://tex.stackexchange.com/landing/r/digest?cta=user&id=213 140 votes
5.37.2.7 Nice scientific pictures show off

https://tex.stackexchange.com/landing/r/digest?cta=question&id=158668

Task 
Show off your best scientific illustration ! 
The main purpose of this question is to share beautiful scientific pictures, preferably with an educational aspect. 
Content 
Your post must  ... 
[diagrams] [3d] [technical-drawing] [fun] [big-list]
 
asked by Thomas https://tex.stackexchange.com/landing/r/digest?cta=user&id=42660 499 votes
answered by Charles Staats https://tex.stackexchange.com/landing/r/digest?cta=user&id=484 298 votes