I am a senior student who took the class because I wanted to review my math studies before going to graduate school. I got an A+ in linear algebra in college, but as time went by, I forgot a lot, and I thought that if I learned math in Korean, there would be a lot of mistranslations, so I thought Jo Beom-hee's class was very good. It seems like a really good class that will help you get a basic understanding of linear algebra. It's hard to believe that it's been out for over 6 years, but it's still so valuable!!