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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.
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This is like the fast normalization in quake 2. Really clever and well optimized but without comments, incredibly bad.
I really like this solution. Clean and readable.