in college, everyone had a 基米诺. at that time, students from different depts took calculus. 30% were women in my class. students in the class were from different depts, including physics, cs, math, ee and mechanical engineering. i always sat on the very back. the classroom was huge, i hardly heard anything that the professor said. every now and then, i raised my head to check if the class was over. after i dropped out of cs major, i switched to the english dept. since i was still thinking of that girl, i occasionally attended (did not take) some classes she took, such as discrete math, logic design etc. but later on i had to quit attending because so much reading was required of me in the english dept. one time i missed a final exam in the english dept because i took the wrong exam. what happened was that i saw her enter a classroom and so i followed. then i took a final exam with her (i think it was operating systems).