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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.
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because it cast it as integer and not as double.
best thing I ever saw
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so using np.prod() works for the basic test but not for the random tests.
Can any one explain why? since when np fails on the huge numbers?!?
No need to even use the inner join just run a subquery in the where cluase.
A left Join is more efficeint then a subquery but not more the an inner join.
make it more universal and understandable for everyone. I like it.
you are life saver!