import numpy as np

arr=np.array([[3,4,9],[3,4,2],[1,2,3]])

print("Array is : \n",arr)

print("Sum of All Column ",np.sum(arr, axis=0))

print("Product of All Column ",np.prod(arr, axis=0))

print("Last Two Column \n",arr[:, -2:])

print("Last Two Rows \n",arr[-2:, :])

arr1=np.array([[4,5,6],[7,8,3],[2,2,1]])

print("Second Array is : \n",arr1)

print("Addition of 2 Array is : \n",(arr+arr1))

arr3=arr * 2

print("Third Array (Muliply by 2) : \n",arr3)

​