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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 NumPy essentials
NumPy is a Python library for manipulation of vectors and arrays. We import it just like any Python module
Step1:  Vector creation
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Python Code:
import numpy as np
Explanation: NumPy essentials
NumPy is a Python library for manipulation of vectors and arrays. We import it just like any Python module:
End of explanation
# From Python lists or iterators
n1 = np.array( [0,1,2,3,4,5,6] )
n2 = np.array( range(6) )
# Using numpy iterators
n3 = np.arange( 10, 20, 0.1)
n3
Explanation: Vector creation
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