I like math very much. Once got an A in calculus

來源: 2023-11-03 05:08:00 [博客] [舊帖] [給我悄悄話] 本文已被閱讀:

in an undergraduage course in US, but I never took a formal calculus course in China (where I taught myself calculus with an English book by a Russian mathmatician from my father. I still have a calculus notebook I took at that time.