Python Numpy matrix.A() Function

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NumPy Library 

NumPy is a library in python that is created to work efficiently with arrays in python. It is fast, easy to learn, and provides efficient storage. It also provides a better way of handling data for the process. We can create an n-dimensional array in NumPy. To use NumPy simply have to import it into our program and then we can easily use the functionality of NumPy in our program.

NumPy is a Python library that is frequently used for scientific and statistical analysis. NumPy arrays are grids of the same datatype’s values.

Numpy matrix.A() Function:

Using the numpy.matrix.A() function of the Numpy module, we can obtain the same matrix as self. This means that we may obtain the identical matrix using this method.

Syntax:

 numpy.matrix.A()

Return Value:

The same(self) matrix is returned by the matrix.A() function.

Numpy matrix.A() Function in Python

For 1-Dimensional (1D) Matrix

Approach:

  • Import numpy module using the import keyword
  • Create a matrix(1-Dimensional) using the matrix() function of numpy module by passing some random 1D matrix as an argument to it and store it in a variable
  • Apply getA() function on the given matrix to get a self matrix of a given matrix.
  • Store it in another variable
  • Print the self matrix of a given matrix.
  • The Exit of the Program.

Below is the implementation:

# Import numpy module using the import keyword
import numpy as np
            
# Create a matrix(1-Dimensional) using the matrix() function of numpy module by passing 
# some random 1D matrix as an argument to it and store it in a variable
gvn_matrx = np.matrix('[2, 1, 6, 3]')
            
# Apply getA() function on the given matrix to get a self matrix of a given matrix.
# Store it in another variable
rslt = gvn_matrx.getA()
# Print the self matrix of a given matrix.
print("The self matrix of a given matrix:")
print(rslt)

Output:

The self matrix of a given matrix:
[[2 1 6 3]]

For 3-Dimensional (3D) Matrix

Approach:

  • Import numpy module using the import keyword
  • Create a matrix(3-Dimensional) using the matrix() function of numpy module by passing some random 3D matrix as an argument to it and store it in a variable
  • Apply getA() function on the given matrix to get a self matrix of a given matrix.
  • Store it in another variable
  • Print the self matrix of a given matrix.
  • The Exit of the Program.

Below is the implementation:

# Import numpy module using the import keyword
import numpy as np
            
# Create a matrix(3-Dimensional) using the matrix() function of numpy module by passing 
# some random 3D matrix as an argument to it and store it in a variable
gvn_matrx = np.matrix('[2, 4, 1; 8, 7, 3; 10, 9, 5]')
            
# Apply getA() function on the given matrix to get a self matrix of a given matrix.
# Store it in another variable
rslt = gvn_matrx.getA()
# Print the self matrix of a given matrix.
print("The self matrix of a given matrix:")
print(rslt)

Output:

The self matrix of a given matrix:
[[ 2 4 1]
 [ 8 7 3]
 [10 9 5]]