If you buy the textbook yourself instead of borrowing it from the library, you can just write it on the textbook, but it's more organized in a notebook, but it depends on your perseverance. If the textbook is borrowed by yourself, buy a notebook decisively. You can also use exercise books in high school, but it's inconvenient to read, but it's ok to hand in your homework. It depends on the teacher's requirements.

Suggestion: If you are interested in this major, you must prepare a hardcover notebook for the courses or lectures of academic experts, which will be very rewarding.