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  2. matrix operations | empty () function

matrix operations | empty () function

numpy.matlib.empty() — another function to do matrix operations in numpy. It returns a new matrix of the given shape and type without initializing records.

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

 
# import numpy library and matrix

import numpy as geek

import numpy.matlib

 
# desired output matrix

out_mat = geek.matlib.empty (( 2 , 3 )) 

print ( "Output matrix: " , out_mat) 

Output: 

 Output matrix: [[6.93621940e-310 2.43141878e-316 6.93621669e-310] [6.93621669e-310 6.93621553e-310 6.93621553e-310]]  
 
  Code # 2:  
 
 
 
  
  
  
  # Python program explaining  
  # numpy.matlib.empty () function  
 
  
  # importing the numpy library and matrix  
 
  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]]