Explore python Libraries - Numpy, Scipy, Matplotlib

Numpy
Gives functions for working with multidimensional arrays.
Numpy arrays have
1)Rank
2)Shape (given by dim of vector)
Numpy arrays can be created like:
a=np.array([1,2,3],[2,3,4]) #with initialize
a=np.zeros(2,2) / np.ones(2,2) / np.random.random(4,4)

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