Math Girls (数学ガール, Sūgaku gāru) is the first in a series of math-themed young adult novels of the same name by Japanese author Hiroshi Yuki.

[2] The unnamed narrator and his schoolmates Miruka and Tetra are Japanese high school students with an interest in mathematics.

While the book is presented as a novel, the bulk of its content is related to finding the solution to complex math problems, so could also be considered a form of textbook.

At the start of his first year of high school, the narrator meets a new classmate, a girl named Miruka.

He begins to repeat this pattern in high school, but as his friendship with Miruka and Tetra develop he spends most of his time working on math problems with them.

He has a quiet personality, but is somewhat self-conscious of his mathematical ability as compared to Miruka and Tetra, and when he has difficulty solving a math problem he tends to become depressed.

He is very conscious of Miruka and Tetra as potential love interests, but is too shy to initiate a relationship with either one.

She studies mathematics with him following their first encounter under a cherry tree on the day of their entrance ceremony to high school.

The narrator interprets her habit of helping herself to his notebook and starting conversations with others at inopportune times as signs of her lack of inhibitions.

In one scene she finds the narrator teaching math to Tetra (who she has never met) in the library, and responds by kicking her chair out from under her.

There are scenes in the book that indicate that she thinks of the narrator as more than just a friend, but she rarely reveals her emotions, so it is difficult to read her true intent towards him.

She rarely talks about anything else, for example starting her first conversation with the narrator when they meet with a series of math problems.

She suffers from mathematical anxiety, and after entering high school approaches the narrator to ask him to tutor her in math.

She is somewhat careless, though, which frequently leads to her forgetting to take mathematical conditions into consideration when trying to solve math problems.

When it becomes time for school to close, she moves quietly to the middle of the library and announces that everyone must leave.

See other language versions of Wikipedia for the translations of the other books in the series "Math Girls".

A Math Girls manga, illustrated by Mika Hisaka, serialized 14 chapters between April 2008 and June 2009 in Comic Flapper (except for the November 2008 issue).