Yuan’s Reviews > No bullshit guide to linear algebra > Status Update

I am re-reading this book again. The brain is very smart, it only remembers the things we use. When it comes to mastering some abstract concepts, my experience is that you probably need to repeat it five to six times. There are a number of books that I re-read every year, just 2-3 hours to refresh the mind and active recall.

Finally I understand what is singular value decomposition.