Skip to content

Pythoneo

Online How to Python stuff

How to inverse matrix in Numpy?

Posted on March 31, 2021April 1, 2022 By Luke K

Let’s see how to inverse matrix in Numpy Python library.
numpy inverse matrix

Using linalg.inv

Numpy does have dedicated function which inverses matrices. This is linalg.inv Numpy method. This linear algebra inv function is responsible for computing the inverse of a given identity matrix.

import numpy as np

my_array = np.array([[11, 2, 3], [3, 6, 7], [6, 7, 22]])

inverted_array = np.linalg.inv(my_array)

print(my_array)
print(inverted_array)

python numpy inverse matrix

As you can see it is just one line of code to inverse matrix with Numpy.

See also  Incredible trick on how to reshape to automatic value of dimension in Numpy

You can use inversed matrix to multiply matrices. Thanks to this you will in fact divide matrices. This is a workaround for dividing problem. It is not possible to divide matrices in Numpy but you can multiply by inversed matrix.

numpy Tags:array, matrix, multiply

Post navigation

Previous Post: How to get column in Numpy array?
Next Post: How to transpose matrix in Numpy?

Categories

  • bokeh (1)
  • datetime (3)
  • Django (5)
  • glob (1)
  • io (1)
  • json (1)
  • math (5)
  • matplotlib (10)
  • numpy (95)
  • OpenCV (1)
  • os (3)
  • Pandas (2)
  • paramiko (1)
  • pathlib (2)
  • Pillow (3)
  • Plotly (3)
  • Python (29)
  • random (7)
  • requests (1)
  • Scipy (4)
  • Seaborn (7)
  • shutil (1)
  • sqlite3 (1)
  • statistics (16)
  • sys (1)
  • Tkinter (9)
  • turtle (2)
  • Uncategorized (1)
  • urllib (1)
  • webbrowser (1)

RSS RSS

  • How To Use Colormaps In Matplotlib?
  • How to calculate bonds in Python
  • How to handle trigonometry in Python
  • How to Convert Int to Binary in Python?
  • How to fix ValueError: The truth value of an array with zero elements is ambiguous?
  • How to solve NameError: name ‘numpy’ is not defined
  • How to insert seaborn lineplot?
  • How to Find the Length of an Array in Python?
  • How to reset secret key in Django
  • How to solve TypeError: ‘numpy.int64’ object is not callable

Tags

arithmetic mean array axis button calculations chart conversion copy count counter data type dictionary dimension draw error files fill float generate grid GUI image index integer list matrix max mean median min normal distribution plot random reshape rotate round size standard deviation string sum test text time variance zero

Copyright © 2023 Pythoneo.

Powered by PressBook WordPress theme

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
Cookie settingsACCEPT
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT