10.16.2 Greatest hits from previous weeks

10.16.2.1 How to align a set of multiline equations
10.16.2.2 Remove ugly borders around clickable cross-references and hyperlinks
10.16.2.3 How can I get bold math symbols?
10.16.2.4 Big Parenthesis in an Equation
10.16.2.5 Commenting out large sections
10.16.2.6 How can I split an equation over two (or more) lines
10.16.2.7 Using \footnote in a figure's \caption
10.16.2.1 How to align a set of multiline equations

https://tex.stackexchange.com/landing/r/digest?cta=question&id=44450

I am trying to align a set of long equations, that are themselves align environments as most of them are spreading on multiple lines. 
Currently I just have a sequence of align environments, with ... 
[equations] [align]
 
asked by SeismicVibrations https://tex.stackexchange.com/landing/r/digest?cta=user&id=11737 Score of 133
10.16.2.2 Remove ugly borders around clickable cross-references and hyperlinks

https://tex.stackexchange.com/landing/r/digest?cta=question&id=823

I know that I can use hyperref to make cross-references and hyperlinks clickable.  That makes the clickable areas outlined in fluorescent green, however.  How can I make the green boxes go away? 
[hyperref] [color] [boxes] [links]
 
asked by Vebjorn Ljosa https://tex.stackexchange.com/landing/r/digest?cta=user&id=35 Score of 1117
answered by meep.meep https://tex.stackexchange.com/landing/r/digest?cta=user&id=3735 Score of 1071
10.16.2.3 How can I get bold math symbols?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=595

To make Latin-letter variables bold I can use e.g. \mathbf{a}, but while putting Greek letters or symbols such as \nabla inside \mathbf doesn't cause any errors or warnings, it also doesn't do ... 
[fonts] [math-mode] [symbols] [bold]
 
asked by Michael Underwood https://tex.stackexchange.com/landing/r/digest?cta=user&id=32 Score of 631
answered by Mark Meckes https://tex.stackexchange.com/landing/r/digest?cta=user&id=206 Score of 536
10.16.2.4 Big Parenthesis in an Equation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=38868

I have an equation contained inside \[...\], which automatically makes a \sum with sub- and superscripts turn big--so that the summation sign looks awkward inside parenthesis.  Any idea how to make ... 
[math-mode] [delimiters]
 
asked by jamaicanworm https://tex.stackexchange.com/landing/r/digest?cta=user&id=9757 Score of 260
answered by qubyte https://tex.stackexchange.com/landing/r/digest?cta=user&id=9043 Score of 384
10.16.2.5 Commenting out large sections

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

To "comment out" a line, I need to insert a % at the beginning of the line (so that the line will not be compiled). 
Is there a way to comment out a large section without having to manually ... 
[comments]
 
asked by BeauGeste https://tex.stackexchange.com/landing/r/digest?cta=user&id=5419 Score of 445
answered by Martin Scharrer https://tex.stackexchange.com/landing/r/digest?cta=user&id=2975 Score of 357
10.16.2.6 How can I split an equation over two (or more) lines

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=459 Score of 351
answered by Will Robertson https://tex.stackexchange.com/landing/r/digest?cta=user&id=179 Score of 220
10.16.2.7 Using \footnote in a figure's \caption

https://tex.stackexchange.com/landing/r/digest?cta=question&id=10181

Maybe this is an easy one, but I struggled with this now too long :) 
I want to have a footnote in a caption of a figure, see the example. 
\begin{figure}[!ht] 
\caption{a figure caption\footnote{... 
[floats] [footnotes] [captions]
 
asked by Matten https://tex.stackexchange.com/landing/r/digest?cta=user&id=1125 Score of 326
answered by Dee https://tex.stackexchange.com/landing/r/digest?cta=user&id=16059 Score of 238