The total cost if bought new is 21,395 yen. There are writings in "Linear Algebra, Revised 6th Edition." I couldn't find any writings in the other books, but please purchase only if you don't mind if there are any. How about these as reference books for graduate school entrance exams (inshi) and studying university mathematics? I am not considering selling them separately at the moment. Thank you for your consideration. -Contents- Mathéma Series ・Linear Algebra ・Linear Algebra Exercises ・Differential and Integral Calculus ・Complex Functions ・Vector Analysis ・Electromagnetism Others ・Exercises for Graduate School Entrance Exams Mathematics I ・Exercises for Graduate School Entrance Exams Mathematics II