Loading collection data...
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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it's rebuilding the row
i
of the matrix, suppressing the column at indexn
This is called slicing and it's very common in Python. Do you know you can copy code and test it onn your computer to see how it works? You can even do it here, just click
fork
under any solution (though the site is currently down so it is probable it doesn't work right now).