The final exam week is coming and I found that this course, CSC104, is a wonderful fundamental course for beginners in computer science. The most important thing for us to do is to manipulate DrRacket well. The functions I learned so far are not as difficult as I think before take this course. It is significant to identity various function types. For example, the way writing a base function is important for the later recursion functions. Since I learn about simple type of functions, it is getting complex. However, as long as I keep up with the practice each week, it is easy to get full marks on each week's quiz. In addition, it is helpful to do the past exams. It is a good way to review and learn new samples that do not appear on the quiz.
Stuffs we learned this week through the lecture was quite similar to the last week. We still focused on defining functions and identifying booleans; however, I found that it was getting easier for me. Now I can answer whether the boolean is true or false quickly. Actually I also several good ways to memorize like if there is "and" and "false", then it must be #false. What I learned new this week was the way to hide steps. If an intimidate step was calculated before, I can use hide to hide the calculation which makes the step clearer that I do not need to do it again. With the hide command, it turns out to be easier to do complex functions since I have already calculated the answer for an intimidate step before.
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