I found this book in the maths section of Kinokunia and I had to have it. I wish I bought the second at the same time.
Here is the blurb …
Math isn’t hard. Love is.
Currently in its eighteenth printing in Japan, this best-selling novel is available in English at last. Combining mathematical rigor with light romance, Math Girls is a unique introduction to advanced mathematics, delivered through the eyes of three students as they learn to deal with problems seldom found in textbooks. Math Girls has something for everyone, from advanced high school students to math majors and educators.
I loved this book – I had my piece of paper beside me and worked through the problems as they did.
The plot is OK, but it doesn’t matter it is a novel with maths!
Here’s a review by the American Mathematical Society