SAS/IML programmers might be interested in the following resources about the SAS/IML language:
The book Statistical Programming with SAS/IML Software (Wicklin, 2010) provides tips and techniques for efficient SAS/IML programming and discusses IMLPlus, the programming language in the SAS/IML Studio application.
You can ask for programming help at the SAS/IML Support Community. Go to https://communities.sas.com/community/support-communities, and click the SAS/IML and SAS/IML Studio Support Community links.
You can search for and download programs that are written by other SAS/IML programmers at the SAS/IML File Exchange. Go to the SAS/IML Support Community (see the previous item), and click the link for the file exchange.
The blog The DO Loop (http://blogs.sas.com/content/iml/) provides advice about statistical programming in SAS, with an emphasis on SAS/IML programming.
If you are a SAS customer and are unable to resolve your problem by using the self-help resources, you are welcome to contact SAS Technical Support: http://support.sas.com/techsup/contact/.
If you are a student or faculty member at a college or university, the IML procedure is available free as part of the SAS University Edition software. Students and professors can ask questions and interact with one another at the SAS Analytics U community: https://communities.sas.com/community/sas-analytics-u.