Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I should try harder to avoid
method_missing.that turned out to be a bug/ruby version difference about whether you can capitalize 'matrix' when requiring it.
Your solution looks great. Very consise. Mine was very naive.