From the article "... mathematics-themed young adult novel (!) by Japanese author Hiroshi Yuki. Math Girls combines “the rigor of a mathematics text with the drama of teenage romance.
I’d never heard of Math Girls before I saw that press release, but apparently it’s a cultural phenomenon in Japan, where it’s gone through eighteen printings, three sequels, comic book adaptations, and fan-created music videos. (video link in article) You should watch it, just because it’s the only Japanese pop video you will ever see that features a generating function.)
Bento Books describes the novel:
Math Girls introduces readers to a wide range of subjects, from the Fibonacci series and prime numbers, to more advanced topics like generating functions, integer partitions, and Taylor expansions. Also covered are fundamentals of higher math, such as how to name variables, strategies for tackling complex problems, and the importance of precision in mathematical language. Alongside this heady content is the story of the book’s narrator, one vertex in a love triangle with the “math girls,” the brilliant Miruka and the determined Tetra."
via +Adrienne Roehrich