Mathematical model, fifth edition. The fifth edition of Mathematical Model (edited by Jiang Qiyuan, Xie Jinxing and Alfred) will use python instead of matlab in a series of texts, among which python library includes Nump (for array operation), Matplotlib (for 2D data visualization), Scipy (advanced scientific calculation), Mayavi (3D graphics) and so on, and the course used is Scipy Chinese text course published by Github community.