numpy matrix operations | empty() function
Last Updated : 20 Feb, 2019
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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 :
# 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)
Output :
Code #2 :Output matrix : [[ 6.93621940e-310 2.43141878e-316 6.93621669e-310] [ 6.93621669e-310 6.93621553e-310 6.93621553e-310]]
# 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)
Output :
Output matrix : [[140133380791224 140133380791224 140133356100528] [140133356100336 140133356100592 140133343343704]]
