我第一次走进教室听大卫·马里兰的高等数学课时,不知道等待我的将是什么。那是1981年9月的一天,风和日暖,尽管有人已经打开了教室的一扇窗户,但我还是出了一身冷汗。提起数学,我便如惊弓之鸟。 8点整,一位戴眼镜的小伙子 The first time I walked into a classroom listening to an advanced math class in David Maryland, I did not know what to expect from me. It was a day in September 1981, the wind and warmth, though someone has opened a window in the classroom, but I was out of a cold sweat. Mention mathematics, I will be like a frightening bird. 8 o’clock, a guy wearing glasses