9.41.2 Greatest hits from previous weeks

9.41.2.1 Scale image to page width?
9.41.2.2 \mathbb Z  yields undefined control sequence error
9.41.2.3 How to typeset the symbol '^' (caret/circumflex/hat)
9.41.2.4 Remove ugly borders around clickable cross-references and hyperlinks
9.41.2.5 Which dot character to use in which context?
9.41.2.6 How do I change the `enumerate` list format to use letters instead of the default Arabic numerals?
9.41.2.7 How to add indentation
9.41.2.1 Scale image to page width?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=39147

I use 
\inclugraphics[scale=TRYING TO GUESS THE NUMBER FOR PAGE WIDTH]{...} 
but I find this errorsome, is there some ready flag to set the image to page width? I usually use PNG and JPG photos. 
[graphics] [scaling]
 
asked by hhh https://tex.stackexchange.com/landing/r/digest?cta=user&id=2956 Score of 285
answered by Werner https://tex.stackexchange.com/landing/r/digest?cta=user&id=5764 Score of 270
9.41.2.2 \mathbb Z  yields undefined control sequence error

https://tex.stackexchange.com/landing/r/digest?cta=question&id=38769

I am using WinEdt 6 for compiling my TeX documents. I am getting an error with contains the line $\mathbb{Z}$ showing that it is undefined control sequence. How should I rectify it? Should I include ... 
[math-mode] [errors] [symbols]
 
asked by Ramana Venkata https://tex.stackexchange.com/landing/r/digest?cta=user&id=10154 Score of 238
9.41.2.3 How to typeset the symbol '^' (caret/circumflex/hat)

https://tex.stackexchange.com/landing/r/digest?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/digest?cta=user&id=17205 Score of 304
answered by Qrrbrbirlbel https://tex.stackexchange.com/landing/r/digest?cta=user&id=16595 Score of 401
9.41.2.4 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 1079
answered by meep.meep https://tex.stackexchange.com/landing/r/digest?cta=user&id=3735 Score of 1031
9.41.2.5 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])   &middot;   &#183;   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 230
answered by Danie Els https://tex.stackexchange.com/landing/r/digest?cta=user&id=1683 Score of 150
9.41.2.6 How do I change the `enumerate` list format to use letters instead of the default Arabic numerals?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=2291

I've seen documentation whereby an \alph command is put around the \begin{enumerate} somewhere, but I'm not entirely sure how that operates... 
[numbering] [lists] [enumerate]
 
asked by Billy ONeal https://tex.stackexchange.com/landing/r/digest?cta=user&id=192 Score of 411
answered by frabjous https://tex.stackexchange.com/landing/r/digest?cta=user&id=411 Score of 365
9.41.2.7 How to add indentation

https://tex.stackexchange.com/landing/r/digest?cta=question&id=45501

I am writing a thesis report using LaTeX and I need to add indentations because every new paragraph starts from the initial position on the left. 
How do I add indentations? 
[spacing] [indentation]
                                                                                  

                                                                                  
 
asked by pavani https://tex.stackexchange.com/landing/r/digest?cta=user&id=9327 Score of 141
answered by Frank Mittelbach https://tex.stackexchange.com/landing/r/digest?cta=user&id=10109 Score of 95