Concatenating two one-dimensional NumPy arrays

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How do I concatenate two one-dimensional arrays in NumPy? I tried numpy.concatenate:

import numpy as np
a = np.array([1, 2, 3])
b = np.array([4, 5])
np.concatenate(a, b)

But I get an error

Nov 16 in Python by Ashwini
• 2,760 points
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