4.39.2 Greatest hits from previous weeks

4.39.2.1 How to typeset the symbol '^' (caret/circumflex/hat)
4.39.2.2 How to write partial differential equation (Ex. dQ/dt=ds/dt) with real partial derivative signs?
4.39.2.3 Making the bibliography appear in the table of contents
4.39.2.4 "Correct" way to bold/italicize text?
4.39.2.5 Commenting out large sections
4.39.2.6 How can I explain the meaning of LaTeX to my grandma?
4.39.2.7 Matrix in Latex
4.39.2.1 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 161 votes
answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=16595 216 votes
4.39.2.2 How to write partial differential equation (Ex. dQ/dt=ds/dt) with real partial derivative signs?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=225523

I would like to make a partial differential equation by using the following notation: 
dQ/dt 
(without / but with a real numerator and denomenator). Earlier today I got help from this page on how to  ... 
[equations]
 
asked by David https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=71265 55 votes
answered by Benjamin McKay https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=19327 5 votes
4.39.2.3 Making the bibliography appear in the table of contents

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=8458

I need to make my (BibTeX) references section appear in the table of contents of my LaTeX document (documentclass: article), with section numbering too. 
My approach until now has been making a new  ... 
[sectioning] [table-of-contents] [bibliographies]
 
asked by Genba https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2311 151 votes
answered by lockstep https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=510 107 votes
4.39.2.4 "Correct" way to bold/italicize text?

https://tex.stackexchange.com/landing/r/newsletter?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 Mehrdad https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2694 323 votes
answered by Todd Lehman https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=8499 325 votes
4.39.2.5 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 275 votes
answered by Martin Scharrer https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=2975 210 votes
4.39.2.6 How can I explain the meaning of LaTeX to my grandma?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=94889

I wrote a book about LaTeX, and my proud grandma wanted to have a copy. So she got it, said "What a beautiful picture on the cover!" and - "What is this, LaTeX?". 
She doesn't know Word, never used a  ... 
[latex-misc]
 
asked by Stefan Kottwitz https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=213 713 votes
4.39.2.7 Matrix in Latex

https://tex.stackexchange.com/landing/r/newsletter?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/newsletter?cta=user&id=63361 85 votes
answered by skpblack https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=42912 138 votes