This book is taken notes from the MAT2040 in summer semester, 2017, and updated in 2018.
These lecture notes were taken and compiled in LATEX by Jie Wang, an undergraduate student in 2017 and 2018.
Prof. Zhiquan Luo and Prof.Ruoyu Sun is the lecturer for the course MAT2040 in summer semester, 2017. However, They have not edited this document.