Chapter 04.01: Lesson: What is an upper triangular matrix?

[thp]

This is perfect and right to the point with clear writing and voice. Love how you even pointed out a common misconception I had about the upper triangular matrix, and corrected it, all within three minutes. Sending you my respect from Egypt!

[adeelali]

Thank you Sir, no waffling and straight to the point

[jambalaya]

Again my Indian friends pull me out of my desperation❤️

[mohammadhabibullah]

Thank you, very easy and effective explanation

[divyanshu]

Can any of the elements above the diagonal be zero if it is an upper triangular matrix

[dashratgaykwad]

Please tell me, what a n (into) n in a upper triangular matrix

[mdashrafulislam]

I am not looking for this. triangular matrix is already known to me. What I need is why is it used for. I want a 3Blue1Brown(3b1b) type video.