#!/usr/bin/python3
import numpy as np

def main():
	l=[1,2,3]
	a=np.array([1,2,3], dtype='float64')
	print(l)
	print(a)
	print("Array rank=",a.ndim)
	print("Array shape=",a.shape)
	print("Array type=",a.dtype)
	l.append(4)
	#NONONO The size of array is fixed
	#a.append(4)
	l2=l+[5]
	print(l2)
	a2=a+np.array([1])
	print (a2)
	l3=2*l
	print(l)
	print(l3)
	a3=2*a
	print(a3)

	14=[]
	for el in l:
		l4.append(el**2)
	print(l4)
	14=[el**2 for  el in l]
	a4=a**2
	a5=np.sqrt(a)
if __name__=="__main__":
	main()