This Site is designed to help serve students who have difficulties in learning mathematics. This website is designed with MIT license and all materials that from this site is only for study use.
Anyone who are interested in the maintance of the website are welcome to get the account to help update files or update any useful materials.
Currently this repository is maintaining by Jingyu Sun and Xiaoyun Liu from Haide College. It is highly possible that the materials provided by us has mistakes. So we are welcome to get any issues about the mistakes and we are happt to fix that.