2.22.2 Greatest hits from previous weeks

Greatest hits from previous weeks:

2.22.2.1 Mavericks upgrade screwed up my pdflatex (command not found)

http://tex.stackexchange.com/questions/163849/mavericks-upgrade-screwed-up-my-pdflatex-command-not-found

so everything was working fine ... until i upgraded to os x mavericks (version 10.9.2) a couple days ago. 
using 
emacs version 24.3 (9.0) 
auctex version 11.87.3 
after upgrade, tried to compile and  ...
 

- asked by MichaelWBratton (26 votes), answered by Sean Allred (26 votes)

2.22.2.2 What are all the font styles I can use in math mode?

http://tex.stackexchange.com/questions/58098/what-are-all-the-font-styles-i-can-use-in-math-mode

As can be seen in above picture, there are lots of fonts or font styles that can be used in math mode. 
What are all the fonts or font styles I can use in math mode, and which packages are required  ...
 

- asked by doncherry (204 votes), answered by Christian (243 votes)