# numpy string operations | lower() function in Python 
# Python Program explaining
# numpy.char.lower() function 
  
import numpy as geek 
  
  
in_arr = geek.array(['P4Q R', '4Q RP', 'Q RP4', 'RP4Q'])
print ("input array : ", in_arr)
  
out_arr = geek.char.lower(in_arr)
print ("output lowercased array :", out_arr)