General questions from Python user

You can write Julia code much like you wrote Python code, and it could be much faster (Julia code against native Python loops), or much slower (e.g. naive Julia against numpy). It is not really hard to get Julia to be fast, but it may take time to learn the proper Julian ways. As an example see this recent thread, where the community helps a novice to improve the speed of his code by a factor of 70.

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