numpy.matlib.empty()函数| Python

numpy.matlib.empty()函数返回给定形状和类型的新矩阵，而不初始化条目。

Syntax : numpy.matlib.empty(shape, dtype = None, order = ‘C’)
Parameters :
shape : [int or tuple of int] Shape of the empty matrix.
dtype : [data-type, optional] Desired output data-type.
order : [{‘C’, ‘F’}, optional] Whether to store multi-dimensional data in row-major (C-style) or column-major (Fortran-style) order in memory.
Return : [matrix] A new matrix of given shape and type, without initializing entries.

代码#1：

# Python program explaining
# numpy.matlib.empty() function
  
# importing numpy as geek 
# and importing matlib module  
import numpy as geek
import numpy.matlib
  
# filled with random data
gfg = geek.matlib.empty((2, 2))
  
# output will be random
print (gfg)

输出 ：

[[  6.91957648e-310   1.90383493e-316]
 [  6.91957669e-310   5.30409905e-317]]

代码#2：

# Python program explaining
# numpy.matlib.empty() function
  
# importing numpy as geek 
# and importing matlib module  
import numpy as geek
import numpy.matlib
  
# filled with random data
gfg = geek.matlib.empty((2, 2), dtype = int)
  
# output will be random
print (gfg)

输出 ：

[[139855860099992        40294208]
 [139855825297024        10730496]]