Instructor: Professor Huazhong Tang Office: 1379E of No. 1 Science Building, Telephone: 62757018 Email: hzttang_pku (AT)yahoo.com.cn Office hours: by appointment. Time and Venue: 每周二上午8:00-10:00; 单周四上午10:10-12:00 三教506 Assistant: Mr. Kailiang Wu Homework(HW): Please submit the Homework to Assistant by the email address.