The second term test result

Last Wednesday, I got the second term test back at the end of the lecture.

The marks is a little bit lower than I expected :(

I did okay on both part 2 and part 3, but I got screwed up on the part 1 which is about computer history.

What  I figure out is that the part one maybe a little bit challenging for students like me whose first language is not English.

Anyway, It's very impressive to know that we can bring a "cheat sheet" to the final exam.

When I went throughout the test questions, actually I found that part2 and part3 are not that difficult. The part2 is really similar to the quizzes I did in the lecture, and part3 is like a conclusion about the project we did before the test. However, the part1 is a nightmare since I never practiced before, just memorizing some histories according to the slides. 

For the final exam, I will study really hard about the computer history by organizing the notes and going through the slides very carefully. Hopefully I will do a better job on the final exam. 

My First CS Project

Honestly, I spent almost a week on the first project. After I submitted last friday, I felt a big relief.Generally speaking, the project was long and complicated than I expected.

Before I did the project, I was still confused about writing the (check-expect) stuff, even though I watched the "check-expect" video many times. But not, after doing the project, I got a clear idea about writing the (check-expect) because I practiced writing the "check-time" many times in the project. Hoever, I still got one question.
Im not quite sure about how to write the "check-expect" about this one.


; stop? : clocktime -> boolean
; Is c-stop/go a stop sign:
; !!! create two (check-expect ...) expressions for stop;
; insert them before the definition




(define (stop? c) (equal? (clocktime-stop/go c) STOP))

I tried many times but it still did not work  :(

Anyway, this project helped me a lot getting prepared the term-test on Wednesday. 

Wish me good luck on the test 

Wikipedia Project

When I started to write my third blog today, I found out that I did not post the two I wrote before. What I did was I saved them instead of posting. Since I never used Blogger before, I made a huge mistake. How come I cannot tell the difference between the "save" and "post" ><. However, I will get used to it. :)

The wikipedia project is really an impressive project. 

When every time I need some information about some specific stuff, I usually search it on the Wikipedia.  I never noticed that how much work behind until I really edit the wikipedia page by myself. And now it's time to give something back to the society. :)

The pages I would like to edit are :

http://en.wikipedia.org/wiki/Yellow_ribbon

http://en.wikipedia.org/wiki/Angry_Birds

http://en.wikipedia.org/wiki/Xbox_Video

http://en.wikipedia.org/wiki/Dance_Dance_Revolution_Extreme

For the article “Yellow Ribbon”, I suggest to split the article by including the two songs “She Wore a Yellow Ribbon” and “Tie a Yellow Ribbon Round the Old Oak Tree” as sister articles to the main article. By doing so, they can be discussed in further detail, without making the main article too long.

In the “Angry Birds” article, I suggest splitting the “Ports” section into 3 additional subsections including: “Mobile/Android”, “Gaming Consoles” and “PC” since the ports fall under these three categories. This would help to organize the information and make the “Ports” section less intimidating. In addition, I suggest that some of the information in the section “Other Media” be removed and placed into a section called “Television and Advertisement” where much of the information under “Other Media” falls under.

For the article “Xbox Live Music”, since it was created only three days ago, it lacks much of the information that people may be looking for (ie. Development and Release as well as Reception). Thus, I propose to do some extended research and contribute useful information to the page.

Finally, for the article “Dance Dance Revolution Extreme”, there are sections that have a title, but contain no information. For example, there is no information under “Challenge Mode”, “Nonstop Mode” and “V-Rare” though they have been made into subsections. Therefore I plan to do some research on my own in order to supplement the lack of information in these subsections.

Midterm Marks

Today I checked the midterm's marks, and it turned out that it was not impressive at all. :'(
I was kind of stuck at the last question. Because is was such a long question, every time I see a long question, I assume it is could be really complicated, and then I will lose my patience to answer it.
Actually the last question was not that hard, as long as I had patience, I would able to solve that. What's a  pity :(

Luckily, the term tests don't account for too much for this course(only 10% for each term test). If I do well in the quizzes and the assignments, I still have a chance to get higher marks in this course.

The last term test is coming soon and the materials are more hard than before. In order to master this course, I need to practice coding with the DrRacket more. Basically what I did before was just went through the notes and slides with less practice.

First Slog

Maybe you guys will find lots of grammar mistakes in my blogs,but hope you don't mind. My mother language is not English, but I'm trying my best to get it improved. :)

Euclid, fl. 300 BC, also known as Euclid of Alexandria, was a Greek mathematician, often referred to as the "Father of Geometry". 



The first blog is based on the algorithms which we are all quite familiar with. Speaking of algorithms, I come up many ways to find the GCD (greatest common divisor ). However,  I found out that the method Euclid used was little bit different and complicated.  Firstly, If I have two non-negative integers. with first number is zero, then second number is the GCD; If the first number is not zero, the first number should be replaced by the remainder after dividing the second number by the first number, switch the first and the second number(before it was replaced), then the new numbers is the GCD.

What's more, I also had much fun folding the paper. My partner and I folded paper several times during the tutorial. We were trying to figure out the pattens about folding the paper and predict the sequence of ups and downs for any number of times when we fold the paper. However, it did not work so well. In the quiz, then I was asked about the folding paper question, I still folded my quiz paper to make sure that how many creases I will have. ;-P