Coding Math: Episode 48 - Matrix Math Part I

In part one of this series, we discuss the basics of matrices for scaling, rotating and translating 2d points and objects, including multiplying and adding matrices.

[gedr]

Awesome! Thanks for teaching me all this, thanks to you my teacher was very impressed 👏

[kamoroso]

That tidbit at the end about viewing in the future...you are magical haha!

[lucasmachain]

finally I found a use for matrix multiplication, thanks a lot Keith

[DevTeamPaxton]

I've been moving away from fixed functionality in openGL which makes me uses Matrices. And what do you know, you post this as your next topic. You must read minds. Thanks for all the hard work you put into these videos. Even though i'm not using java script, I am able to understand what you teach to apply to what i'm working in, just like you said from the beginning

[thomasbartscher]

That third row is useful in 2D too, specifically for chaining operations. Combining two operations then becomes as easy as just multiplying their matrices, which you can't do with the 2×3 matrix representation.
Ah, you probably show that in the next video to derive the matrix for doing all three at once.

[ashutoshrautela]

Which episode was exactly on cordinate rotation that derives the rotation formula? Please share