7.42.2 Greatest hits from previous weeks

7.42.2.1 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=32 518 votes

answered by Mark Meckes https://tex.stackexchange.com/landing/r/digest?cta=user&id=206 444 votes

7.42.2.2 How to type special/accented letters in LaTeX?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=8857

How to type these special letters from European languages in latex? 
A~\[Currency], A~(c), and L'? 
[symbols] [languages] [characters] [accents]
 

asked by user2918 https://tex.stackexchange.com/landing/r/digest?cta=user&id=2918 210 votes

answered by Kit https://tex.stackexchange.com/landing/r/digest?cta=user&id=791 178 votes

7.42.2.3 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 204 votes

answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 135 votes

7.42.2.4 Dictionary for TeXstudio: 'No dictionary Available'

https://tex.stackexchange.com/landing/r/digest?cta=question&id=87650

I have trouble spell checking my document in TeXstudio. When I press spellcheck, I get the error No dictionary Available. Am I supposed to install a dictionary separately? How? Any suggestion? 
[texstudio] [spelling] [dictionaries]
 

asked by N Nik https://tex.stackexchange.com/landing/r/digest?cta=user&id=21429 102 votes

answered by Peter Jansson https://tex.stackexchange.com/landing/r/digest?cta=user&id=19384 140 votes

7.42.2.5 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=459 288 votes

answered by Will Robertson https://tex.stackexchange.com/landing/r/digest?cta=user&id=179 188 votes

7.42.2.6 "inputenc Error: Unicode char \u8" error while trying to write a degree symbol (invisible character)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=4268

No matter how I try to do it I always get the following error : 
! Package inputenc Error: Unicode char \u8:A^\[DiscretionaryHyphen] not set up for use with LaTeX. 
I have tried using A^\[DiscretionaryHyphen]A^\[DiscretionaryHyphen]A^\[DiscretionaryHyphen]$^{\circ}$, \deg, \textdegree, ... 
[symbols] [unicode]
 

asked by levesque https://tex.stackexchange.com/landing/r/digest?cta=user&id=10 100 votes

answered by Antal Spector-Zabusky https://tex.stackexchange.com/landing/r/digest?cta=user&id=1425 92 votes

7.42.2.7 "Correct" way to bold/italicize text?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=41681

Is either of these considered better/more readable/more "proper"/more conventional than the other for making text bold? If so, what is the reason? 
I like my text \textbf{bold} 
versus: 
I like my ... 
[best-practices] [bold] [italic]
 

asked by user541686 https://tex.stackexchange.com/landing/r/digest?cta=user&id=2694 438 votes

answered by Todd Lehman https://tex.stackexchange.com/landing/r/digest?cta=user&id=8499 413 votes