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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.
Thanks
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Read this: https://www.prisma.io/dataguide/postgresql/short-guides/quoting-rules#:~:text=In%20PostgreSQL%2C%20double%20quotes%20(like,specifically%20marked%20beginning%20and%20end.
In SQLite 3.2.8 you could use one or the other.
You're writing programs about things. If the things you're writing the program about are mathematical, then you'll obviously need to know enough math to understand what your program needs to do. There are other problems that require very little math. For example, a web site that allows a user to browse a catalog might use some math in the layout code, or to track items in a shopping cart, but that's a very low ratio of math needed per basic unit of functionality in the code. Then, there are a whole class of problems that don't seem like they'd require a lot of math, but turn out to be very heavily mathematical. For example, computer graphics, AI, and sound processing are all very heavily mathematical, even if it doesn't seem like they would be.