Books that have been decided but not yet published are:

3-2 Information Security and Password

3-5 Euler Formula and Classification of Closed Surfaces

3-6 angle trisection and number domain expansion

4-3 Sequences and Differences

4-8 Overall Planning and Graph Theory

4- 10 switching circuit and boolean algebra

Want to know the relevant knowledge can be found in college mathematics textbooks.

As far as I know, in addition to taking 1 (liberal arts), taking 2 (science),

Only elective courses 4-4, 4-5, 3- 1 and 4-2 are taken. In some places, the last two books are not taken.