• Because it is done so quick, have a try with installing Maxima, Mathjax and the Stack plugin for ILIAS on your server
• This should work for most Debian and Ubuntu systems
• Done in 10 minutes
• You need a vserver or better with at least 2 cores, better 4
• Maxima will only cause processor load if a user starts a test, so if you have no tests online, maxima should not make any problems
• At the buttom you find a hint how to get a much quicker maxima server

Example of a Stack question in ILIAS:

Install Maxima

• Login via SSH on your server
• apt-get update
• apt-get upgrade
• apt-get install maxima
• Get version: maxima –version
  

Install Mathjax

• There are two different ways to use mathjax in ILIAS:
  • Activate Mathjax in the browser (recomended)
  • Activate Mathjax in the server (too many pitfalls in my eyes)
  • So let`s do the browser scenario:
• cd ilias/Customizing
• git clone https://github.com/mathjax/MathJax.git MathJax
  • More infos here: http://docs.mathjax.org/en/latest/installation.html
• Login to ILIAS->Administration->Third party software->mathjax
• Put the following link in the first field and activate it, change the domainname according to your site: 
  • ./Customizing/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML
• Deactivate the second server based option also
• It should now look like this:

Install the Stack plugin

• Change to your ILIAS webdirectory: cd ilias
• mkdir -p Customizing/global/plugins/Modules/TestQuestionPool/Questions
• cd Customizing/global/plugins/Modules/TestQuestionPool/Questions
• git clone https://github.com/ilifau/assStackQuestion.git
• cd assStackQuestion
• If ILIAS 5.3 is your current version: git checkout master-ilias53
• If ILIAS 5.4 is your current version: git checkout master-ilias54

Configure the plugin

• Go to Adminstration->Plugins and upgrade the database
• Set the maxima version
• Refresh plugin language
• Activate the plugin

Other things to do in ILIAS

• Go to the repository and add a question-pool. There should be a new type available: stack-question
• Import some pools. You can find a lot in the SIG Mathe+ILIAS for free. Or use this pool with 50 algebra questions:

Troubleshooting

• In my case, I could not see the graphs. I found out that there is a rightsetting problem in ilias/data/stackschule/xqcas/:

• For some reason, the folder xqcas has not enouth rights. I changed this with chmod -R 775 xqcas, but I am not shure, if the problem will come back.