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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.
so you are using the sqaured part , like a's occurance is 3 and b's occurance is 2 ,so the sum would be 9+4=13, just wanted to check why just cant we use the counts sum as 5 ( 3+2)
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start with 8kyu , do fundamentals tagged questions so you get basic understanding, you will eventually get into the habbit
this seems to be pretty good , probably im not good with maths ...