Where is the notation that DR. Andrew mentioned it’s existence?
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?
Here you can find all DL resources: 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
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.
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:
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.