2.4.3 Can you answer these questions?

Can you answer these?

2.4.3.1 mhchem wants expl3

http://tex.stackexchange.com/questions/289196/mhchem-wants-expl3

I am on Ubuntu using TexLive and I cannot compile this .tex file: 
\documentclass[ 
letter, 
12pt         %% set default font size to 12 point 
]{scrartcl}  %% article, see KOMA documentation  ...
 

- asked by Domsl 2votes

2.4.3.2 How to use Miktex's Xindy package?

http://tex.stackexchange.com/questions/289069/how-to-use-miktexs-xindy-package

Using the package manager one can install a package titled tex2xindy binaries. However, the executable tex2xindy.exe is installed to miktex\bin\x64\internal\ and is thus not added to the system path.  ...
                                                                                  

                                                                                  
 

- asked by Jack Miller 5votes

2.4.3.3 Set draft depending on operating system

http://tex.stackexchange.com/questions/288892/set-draft-depending-on-operating-system

I'm working on two different operating systems - MacOS and Windows. While the main part of my work is done on OSX, I sometimes switch to windows for several reasons. 
Problem is: Windows and OSX  ...
 

- asked by Rico 3votes

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