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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.
Why do so many answers look like this ?
Your expression results in a boolean Value, why the ternary Operator ?
Not a suggestion.
function round(double precision, integer) does not exist
What is this?
First cast to numeric than round. And back to float.