5.17.2 Greatest hits from previous weeks

5.17.2.1 Commenting out large sections

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=17816

So to "comment out" a line, I need to insert a % at the beginning of the line (so that line will not be compiled). 
Is there way to comment out a large section without having to manually putting a %  ... 
[comments]
 

asked by user5419 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5419 294 votes

answered by Martin Scharrer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2975 226 votes

5.17.2.2 How to use \multirow

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=73283

I can compile this table separately but when I want to compile the whole file, it gives me an error, which is fixed by removing \multirow. 
\usepackage{multirow} 
\begin{table}[htbp] 
\begin{center} 
... 
[tables] [multirow]
 

asked by anna https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=18922 75 votes

answered by Gonzalo Medina https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=3954 123 votes

5.17.2.3 How to typeset the symbol '^' (caret/circumflex/hat)

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=77646

I need to display the symbol '^' 
d <- dist(fascores, method = "euclidean")^2 
How do I do that? 
[symbols]
 

asked by Cost https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=17205 187 votes

answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=16595 253 votes

5.17.2.4 Column and row padding in tables

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=31672

How do you guys go about controlling column padding in tables? 
Update 
To clarify, I'm looking for a way to control both vertical and horizontal padding. So, if I had a simple table like in the  ... 
[tables] [spacing] [columns]
 

asked by JustDanyul https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=8615 289 votes

answered by Werner https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5764 254 votes

5.17.2.5 Multi-line (block) comments in LaTeX

https://tex.stackexchange.com/landing/r/newsletter?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/newsletter?cta=user&id=17379 185 votes

answered by guillem https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=3941 141 votes

5.17.2.6 How do I turn off equation auto numbering

https://tex.stackexchange.com/landing/r/newsletter?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) 
... 
[equations] [numbering]
 

asked by user1046 https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1046 113 votes

answered by levesque https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=10 131 votes

5.17.2.7 How can I split an equation over two (or more) lines

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=3782

I am having the following equation: 
\begin{equation} 
Q(\lambda,\hat{\lambda}) = -\frac{1}{2} P(O \mid \lambda ) \sum_s \sum_m \sum_t \gamma_m^{(s)} (t) \left( n \log(2 \pi ) + \log \left| C_m^{(s)}  ... 
[math-mode] [equations] [line-breaking] [breqn]
                                                                                  

                                                                                  
 

asked by Peter Smit https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=459 226 votes

answered by Will Robertson https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=179 157 votes