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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.
me too,
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RM84's solution is much more intuitive. Isn't it?
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There are currently 47 working python solutions.
I don't understand. please somebody describe.
This isn't the equation for factorial ; this equation is:
This is called an arithmetic progression: http://en.wikipedia.org/wiki/Arithmetic_progression