zzz...

What can I say. I felt so sleepy during the Lie group class this week. I know that I have work late the night before the class and my eyes are so tired. I try my very best to not show the obvious sleepy look on my face. To make it worse, the topic of this week is proving some theorem and the teacher had successfully jumble out an unorganized notations. He used to talk ahead further than what he was writing at the board.

Which make myself struggled to take notes. This course has definitely give me a headache. As my friend was saying, "there's no headache in consequence learning group theory..."