Matrix Multiplication for 3D Rendering

In this video, I write a function to perform matrix multiplication in Java. This is in anticipation of videos about 3D projection and rotation.

[SirajRaval]

Matrix multiplication is a crucial concept in deep learning. Dan is a hero for making a fun video on this, amazing work!

[mathewo]

I haven't watched this yet, but I'm very happy that you've decided to do this video. Because I know I'm going to learn.

[za_ozero]

This guy is smart, humble and a bit too shy. I like him overall and he is doing a beautiful job!

[Cyberfoxxy]

normally this is performed with less laughing and more weeping

[mr_hexo]

thankyou.
SO MUCH.

I have been trying to make 3d inverse kinematics and I just couldn't figure out how to do the 3d rotation matrix.
But this video and your one about rotation and projection FINALLY MADE ME UNDERSTAND!!!

Thanks so much!

[DogwafflDan]

Thanks for the review on matrix math! Gave me the incentive to get my C++ matrix class working and some direct2d.

[lucaspetersen]

Dude, you totally read my mind... I was studying for linear algebra exams and thinking of how to do this in Python.

[Simon]

If anybody's interested in learning more about linear algebra, Gilbert Strang's lectures at MIT are all on youtube!

[liquidexw]

well, this tutorial is going to be very useful for me. now I'll finally know how to do image processing with convolution! thanks, Dan!

[killereks]

Yes. Was waiting for this forever. I love you

[eugenetswong]

FEEDBACK

1:06 This is the kind of mistake and correction that is worth leaving in the video. It tells us a bit about what we can do with a new concept. If the video becomes too professional and sanitized, then we tend to lose a lot information. Thank you so much, Mr. Train!

[vjself]

The bell makes this video all the better.

[monomere]

OMG thanks! I'm using this video for my own game engine sort of thing

[mikee.]

Very interesting, wanted to get into matrices and 3d rendering a while back, going to officially start now! :P

[broadcastbrian]

Can't wait for the upcoming 3D projection & rotation videos! Thank you.

[SweetChuckPi]

Matrix Math is one of those things where I find it extremely helpful to more descriptively name my iterators. ie ithColOfA jthRowOfA etc...

[nassimamrane]

Really interesting i was exactly looking for this type of video thx i dont understood how that work now i think it 'll be more clear for me that is the last thing i have to see in programation. Even if i wanted this video in fr i dont see any difference its so very well explicated

[kevnar]

"Through the magic of the linking of the things."

Only in Coding Train world is this a legitimate thought.

[ERsandipanRoyThakur]

Its simply awesome . Please carry this type for minimum 29 times

[jcponcemath]

You are a genius! Great video... Loved the reference about Sisyphus... hahahaha :)