numpy matrix operations | empty() function

numpy.matlib.empty() is another function for doing matrix operations in numpy.It returns a new matrix of given shape and type, without initializing entries.

Syntax : numpy.matlib.empty(shape, dtype=None, order=’C’)

Parameters :
shape : [int or tuple of int] Shape of the desired output empty matrix.
dtype : [optional] Desired output data-type.
order : Whether to store multi-dimensional data in row-major (C-style) or column-major (Fortran-style) order in memory.



Return : A new matrix of given shape and type,

Code #1 :

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python program explaining
# numpy.matlib.empty() function
  
# importing numpy and matrix library
import numpy as geek
import numpy.matlib
  
# desired output matrix 
out_mat = geek.matlib.empty((2, 3)) 
print ("Output matrix : ", out_mat) 

chevron_right






                        filter_none









Output : 


Output matrix :  [[  6.93621940e-310   2.43141878e-316   6.93621669e-310]
 [  6.93621669e-310   6.93621553e-310   6.93621553e-310]]





 


Code #2 : 











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















# Python program explaining 


# numpy.matlib.empty() function 


  


# importing numpy and matrix library 


import numpy as geek 


import numpy.matlib 


  


# desired output matrix  


out_mat = geek.matlib.empty((2, 3), dtype = int, order = 'C')  


print ("Output matrix : ", out_mat)  



















                        chevron_right







                        filter_none









Output : 


Output matrix :  [[140133380791224 140133380791224 140133356100528]
 [140133356100336 140133356100592 140133343343704]]






          
          
          
          

            

    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
jana_sayantan
Check out this Author's contributed articles.
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.