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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.
You could come up with less abstract names for variables. It's not a good habit to name them with non-indicative names, like those consisting of one letter.
Also, you can use "**" symbol instead of Math.pow().
Probably because it shows understanding of Java syntax.
Also, what is your solution? Do you know a faster way to perform it?
I just had the same question, lol!