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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.
Thank you
It's already explained just below.
This is an excellent solution. How did you come up with this logic? I don't understand the formula. Can you please explain me?
Where did you get this formula from please?