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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.
Floating point comparisons are horribly wrong in this kata. "Expected 1.1 * 2.2 * 3.3 == 7.986, got 7.986: 7.986000000000001 should equal 7.986". Floating points are ALWAYS supposed to be checked within the range of an epsilon. This is because computers cannot actually represent floating point numbers accurately.