Set of two books: Calculus and Curves/Complex Numbers for Math 3. "1-to-1 Correspondence Exercises / Math 3, University Math, Calculus Edition" Tokyo Shuppan Editorial Department Price: ¥1400 ★Near new condition. "1-to-1 Correspondence Exercises / Math 3, University Math, Curves/Complex Numbers Edition" Tokyo Shuppan Editorial Department Price: ¥1100 ★There are markings with a highlighter in 2-3 places, but otherwise, it's a clean item with almost no signs of use. ⭐︎As this is a personal inspection, there may be oversights. Thank you for your understanding.