1. Introduction Jupyter Notebook (formerly IPython notebook) is an interactive notebook that supports running more than 40 programming languages. Jupyter Notebook is in fact a web application that lets you create and share program documents, with support for live code, mathematical equations, visualizations, and Markdown. Its uses include data cleaning

Subtitle: Using D3 to Build Interactive Charts Original title: Interactive Data Visualization for the Web Author: [US] Scott Murray Translator: Li Songfeng Publisher: Posts & Telecom Press Publication year: 2013-6 ISBN: 9787115320117

1. Koch Curve The Swedish mathematician Helge von Koch proposed the Koch curve in his 1904 paper “On a continuous curve without tangents, constructible from elementary geometry.” It is described as follows: Specify the length of a line segment \(l\) (this can be thought of as iteration 0) Divide this