For example

1D= np.array([100, 200, 300, 400]) 2D= np.array([[100, 200, 300, 400]]) 3D=np.array([[[100, 200, 300, 400]]]])

So, what is difference in 1D,2D,3D dimension, but values are same for all, please help me to visualise this concept.

I just learbed this concept but not able to grasp this dimensions,why they are different dimensions if we add addiontional brackets.