10.56.2 Greatest hits from previous weeks

10.56.2.1 Reduce space between enumerated items
10.56.2.2 How to change certain pages into landscape/portrait mode
10.56.2.3 How to add an empty line between paragraphs?
10.56.2.4 How do I turn off equation auto numbering
10.56.2.5 What can I use to typeset MATLAB code in my document?
10.56.2.6 What are all the font styles I can use in math mode?
10.56.2.7 Which dot character to use in which context?
10.56.2.1 Reduce space between enumerated items

https://tex.stackexchange.com/landing/r/digest?cta=question&id=6081

Background 
All book figures are set to "here definitely" (as they must come after the text that introduces them). 
Problem 
The list types (enumerated and bullet) have too much space between them. ... 
[spacing] [floats] [lists] [vertical-alignment] [positioning]
 
asked by Dave Jarvis https://tex.stackexchange.com/landing/r/digest?cta=user&id=2148 Score of 218
answered by lockstep https://tex.stackexchange.com/landing/r/digest?cta=user&id=510 Score of 28
10.56.2.2 How to change certain pages into landscape/portrait mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=337

How can I change the orientation of some pages of my document into landscape mode, while leaving the others in portrait mode (or vice versa)? 
[landscape]
 
asked by hayalci https://tex.stackexchange.com/landing/r/digest?cta=user&id=183 Score of 455
answered by rcs https://tex.stackexchange.com/landing/r/digest?cta=user&id=118 Score of 472
10.56.2.3 How to add an empty line between paragraphs?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=135134

I have two sections which I'd like to separate by an empty line. Every time I press Enter, LyX removes that empty line between paragraphs. How do I prevent this? 
[spacing] [lyx]
 
asked by goldisfine https://tex.stackexchange.com/landing/r/digest?cta=user&id=37301 Score of 166
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 180
10.56.2.4 How do I turn off equation auto numbering

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2597

I have an equation like this: 
\begin{align} 
P(A \cup B) = \sum_{\omega \in A \cup B} P(\omega) = \sum_{\omega \in A} P(\omega) + \sum_{\omega \in B} P(\omega) 
= P(A) + P(B) 
\end{... 
[equations] [numbering]
 
asked by user1046 https://tex.stackexchange.com/landing/r/digest?cta=user&id=1046 Score of 189
answered by levesque https://tex.stackexchange.com/landing/r/digest?cta=user&id=10 Score of 216
10.56.2.5 What can I use to typeset MATLAB code in my document?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=75116

This question led to a new package: 
matlab-prettifier 
Does anybody have a quick and easy way to typeset some relatively long MATLAB code in the appendix? I looked up a few methods, and the mcode ... 
[listings] [highlighting] [matlab]
 
asked by suzu https://tex.stackexchange.com/landing/r/digest?cta=user&id=19279 Score of 120
10.56.2.6 What are all the font styles I can use in math mode?

https://tex.stackexchange.com/landing/r/digest?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 in ... 
[fonts] [math-mode] [big-list] [latin-modern] [computer-modern]
 
asked by doncherry https://tex.stackexchange.com/landing/r/digest?cta=user&id=4012 Score of 617
answered by Christian https://tex.stackexchange.com/landing/r/digest?cta=user&id=13450 Score of 794
10.56.2.7 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