Python - numpy - ndarray

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Multiple ways to create ndarrays   - matrices

import numpy as np

create1 = np.array([1,2,3,4])    ## creates a 1 dimensional array with 4 elements - takes input as 1 list

create1 = np.array([[1,2,3,4],[5,6,7,8]])  ## creates 2 dimensinal array -- takes input as 2 lists. notice the big square bracktes outside

create1 = np.array([[1,2,3,4],[5,6,7,8]..... [n1,n2,n3,n4]])  ## creates n dimensinal array -- takes input as 2 lists.

create1 = np.arrange



# create a copy of ndarray

copy1 = np.array(create1) # this will create a new copy of array instead of assigning refrence to it

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