How to get the size of a matrix in Python

To get the size of a matrix in Python, you need to call the shape property of the matrix object.

For example, suppose you created a matrix object using NumPy as shown below:

from numpy import matrix 

my_matrix = matrix([[1,2],[3,4], [5,6]])

To know the size of the matrix and get how many rows and columns it has, you need to access the shape attribute of the object:



(3, 2)

The shape attribute returns a tuple that shows the size of the matrix in N rows and N columns format.

In this example, the matrix has 3 rows and 2 columns. You can use this attribute for any matrix you have in your source code.

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