Here is where to get matmatic:

http://sites.google.com/site/bagginsbill/free-stuff/matmatic

This rendo thread has tons of material info - many postings by me. Scroll down to find a whole section on matmatic.

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2722867

The Node Cult forum is loaded with matmatic stuff. Search it. (Make sure you search archives - the regular display only shows recent threads.)

http://www.runtimedna.com/mod/forum/messages.php?Archive=Yes&forum_id=92

Threads about the Loom:

Loom: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=265148
Making your own patterns: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=265475
Using downloaded patterns: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=265484
Prints and paisleys with the Loom: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=338877
Showing off with the Loom: http://www.runtimedna.com/mod/forum/messages.php?ShowMessage=266347

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)