Week 12 Journal

Today is our last lecture for CSC104. :(
All people got their test 2 back. Professor told us the result of test 2 was no better than test 1 and so we have a bell curve.

Our quiz for this week is about using recursion to create shapes (the function I mentiond in week 11 journal).

Week 11 Joural

In today's lecture, professor used DrrRacket to make snowflake and some other fun patterns.
Today's course is all about recursion.

Here is a function, koch is make the one thrid of a snowflake

(define (koch d)
  (cond
    [(zero? d) (line 5 0 "blue")]
    [else
     (beside/align
      "bottom"
      (koch (sub1 d))
      (rotate 60 (koch (sub1 d)))
      (rotate -60 (koch (sub1 d)))
      (koch (sub1 d)))])

The result for (koch 0) is
_

The result for (koch 1) is
_/\_

Moreover, professor showed us another program, caleld "koch-snowflake

(define (koch-snowflake d)
  (above
   (beside
    (rotate 60 (koch d))
    (rotate -60 (koch d)))
   (rotate 180 (koch d))))

The result of this progam will form a complete snowflake by putting three "koches" (three 1/3 of a snowflake) together like a triangle.

Week 10 Journal

Today is our term test 2 day ~ To be honest, I did not reviewed alot for this test, but I've done my best.
The test was divided half of hardware questions and progrming questions.

Week 9 Journal

In this week's journl, I would like to use the Wikipedia project as an example of problem solving, and I will use the Poly method.

1. Understanding the problem. (Recognizing what is asked for.)
This project asks us to find a wiki article that in need for improvements.
Firstly, I registered an account as a contributor, then I started to look at the articles pages in the help center.
I end up choosing "Conghua" as my topic. http://en.wikipedia.org/wiki/Conghua
This articles need improvment on the citation.

2. Devising a plan. (Responding to what is asked for.)
I will start by researching the topic in the english and chinese websites (because the topic is about a city in China) to find  any relevant websites.
Afterward, I will learne how to insert a citation into the article through help center website 
http://en.wikipedia.org/wiki/Help:Contents.

3. Carrying out the plan. (Developing the result of the response.)
I found the following websites are useful:
http://www.gd.gov.cn/
http://www.guangzhoutravelguide.com/about_guangzhou/conghua-district.html
I insered these websites into the article:
http://en.wikipedia.org/wiki/Conghua

4. Looking back. (Checking. What does the result tell me? )
I went back to check if other contributor change my works, and I find out my works are still there which means my changes are reognized and approved.