The 5 Most Important Matrices for Data Scientists

The 5 most important matrices that I use all the time as a data scientist.

0:00 Intro
1:33 Square Matrices
3:22 Symmetric Matrices
6:24 Triangular Matrices
9:25 Diagonal Matrices
10:18 Identity Matrices
13:12 Relationships Between Them

[akshaydixit]

Intuition behind the Identity matrix and connection with the inverse matrices was superb.

[matthewchunk]

Thank you! There is so much info out there, having someone point some signposts gives me a direction on what to study

[sharks]

Are we getting a video about rectangular matricies soon?

[kilbom]

thanks for information it's very useful

[brhgvishal]

Can you do a paid personal lecture? I want to understand SVAR models where identification is done in a data driven way. But there will not be many people who would want to watch this lecture.

[DanielTysonM]

Can the example given for the lower triangular matrix also be applied to time series?