1. It is structured so that you can build a solid foundation (basics of probability, vector, and matrix operations) with the central concept of 'codification of operations'. 2. The learning content is systematic and allows you to practice codes for the same concept repeatedly, which helps you master it a lot. I also felt that the teacher put a lot of thought into the structure in which the codes for the same mathematical concept gradually increase in difficulty, and I think it was very effective. I plan to continue taking the teacher's lectures, and I definitely want to participate in lectures or seminars myself. Thank you!!