# Notation Link **URL:** \ **Category:** Neural Networks and Deep Learning\ **Tags:** coursera-platform\ **Created:** [December 9, 2023, 8:28pm UTC](https://community.deeplearning.ai/t/notation-link/514877 "2023-12-09T20:28:47Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Marwan\_Hatem](https://avatars.discourse-cdn.com/v4/letter/m/c4cdca/32.png) [@Marwan\_Hatem](https://community.deeplearning.ai/u/Marwan_Hatem)\ **Post date:** [December 9, 2023, 8:28pm UTC](https://community.deeplearning.ai/t/notation-link/514877/1 "2023-12-09T20:28:47Z")
Where is the notation that DR. Andrew mentioned it’s existence? ---
**Author:** ![Christian\_Simonis](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/christian_simonis/32/142583_2.png) [@Christian\_Simonis](https://community.deeplearning.ai/u/Christian_Simonis)\ **Post date:** [December 9, 2023, 8:56pm UTC](https://community.deeplearning.ai/t/notation-link/514877/2 "2023-12-09T20:56:02Z")
Welcome to the community, @Marwan_Hatem. Can you pinpoint which notation you mean here more specifically? I guess you have a certain video (e.g. with timestamp) or a written notation in mind. (In the specialization there are lots of notations - so it’s hard for me figure out which one you mean). Can you please post the video or notation to provide a bit more context here? Best regards Christian ---
**Author:** ![Christian\_Simonis](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/christian_simonis/32/142583_2.png) [@Christian\_Simonis](https://community.deeplearning.ai/u/Christian_Simonis)\ **Post date:** [December 9, 2023, 8:58pm UTC](https://community.deeplearning.ai/t/notation-link/514877/3 "2023-12-09T20:58:59Z")
Here you can find all DL resources: [https://community.deeplearning.ai/c/deep-learning-specialization/deep-learning-resources/26](https://community.deeplearning.ai/c/deep-learning-specialization/deep-learning-resources/26) including lecture notes: [https://community.deeplearning.ai/t/dls-course-1-lecture-notes/11862](https://community.deeplearning.ai/t/dls-course-1-lecture-notes/11862) Best regards Christian ---
**Author:** ![Marwan\_Hatem](https://avatars.discourse-cdn.com/v4/letter/m/c4cdca/32.png) [@Marwan\_Hatem](https://community.deeplearning.ai/u/Marwan_Hatem)\ **Post date:** [December 9, 2023, 9:11pm UTC](https://community.deeplearning.ai/t/notation-link/514877/4 "2023-12-09T21:11:26Z")
Thank you for your reply, i was asking about the logistic regression video ( first video at week 2) Dr.Andrew at the end told us about a notation which declares each sympol representation , i want to know ( n of x ) exactly. ---
**Author:** ![paulinpaloalto](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/paulinpaloalto/32/187_2.png) [@paulinpaloalto](https://community.deeplearning.ai/u/paulinpaloalto)\ **Post date:** [December 9, 2023, 10:11pm UTC](https://community.deeplearning.ai/t/notation-link/514877/5 "2023-12-09T22:11:55Z")
There is a PDF document describing a lot of the notation used in the courses under the Resources topic on the left menu of any of the course lecture pages as highlighted in this screenshot: ![Screenshot 2023-12-09 at 2.10.22 PM](https://global.discourse-cdn.com/dlai/original/3X/6/8/68a2a15c28d610d47eaa68af9e77cb401d144b17.jpeg) If that doesn’t address your question, please give us a screen shot or a time offset into the video where he makes the statement that you are asking about. ---
**Author:** ![abhishankar](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/abhishankar/32/162706_2.png) [@abhishankar](https://community.deeplearning.ai/u/abhishankar)\ **Post date:** [January 23, 2026, 7:45pm UTC](https://community.deeplearning.ai/t/notation-link/514877/6 "2026-01-23T19:45:56Z")
This is not appearing. Can someone please paste me the link to download notation sheet for each symbol ---
**Author:** ![paulinpaloalto](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/paulinpaloalto/32/187_2.png) [@paulinpaloalto](https://community.deeplearning.ai/u/paulinpaloalto)\ **Post date:** [January 23, 2026, 8:47pm UTC](https://community.deeplearning.ai/t/notation-link/514877/7 "2026-01-23T20:47:46Z")
Here is the PDF file as an attachment. [deep-learning-notation.pdf](https://community.deeplearning.ai/uploads/short-url/7mhhkp22LkvquuZpI0wZc12jG9l.pdf) (255.1 KB) ---
**Author:** ![paulinpaloalto](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/paulinpaloalto/32/187_2.png) [@paulinpaloalto](https://community.deeplearning.ai/u/paulinpaloalto)\ **Post date:** [January 24, 2026, 1:59am UTC](https://community.deeplearning.ai/t/notation-link/514877/8 "2026-01-24T01:59:08Z")