# Xah Math Blog Archive 2013-06 to 2013-06

### Math: Symmetry, Flatland, by Ian Stewart

A new book. 〔 Symmetry: A Very Short Introduction By Ian Stewart. Buy at amazon 〕

It cited my work: Discontinuous Groups of Rotation and Translation in the Plane. ☺

Ian Stewart is a well-known mathematician. He has written many books introducing interesting math to the laymen. Including:

- 〔 Flatterland: Like Flatland, Only More So By Ian Stewart. Buy at amazon 〕
- 〔 The Annotated Flatland: A Romance of Many Dimensions By Ian Stewart. @ Buy at amazon 〕

You can also read Flatland here: FLATLAND: A Romance of Many Dimensions

There's also a Chinese translation: 神奇的二维国 (Flatland)

The Problems of Traditional Math Notation

now, you can use this search box: Unicode Search: Find Your Symbols to find all your math symbols.

Ask me question on patreon