If I understand Julia correctly, "Numpy" is built into the core language - i.e. the basic Julia array class is fast like Numpy arrays and does what they do. As

If I understand Julia correctly, "Numpy" is built into the core language - i.e. the basic Julia array class is fast like Numpy arrays and does what they do. As for equivalents to Pandas, Matplotlib etc., Julia has thin wrappers around the Python versions of these so you can use them just like in Python with the same performance.