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).
Wednesday, November 28, 2012
Wednesday, November 21, 2012
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
Today's course is all about recursion.
Here is a function, koch is make the one thrid of a snowflake
Wednesday, November 14, 2012
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.
The test was divided half of hardware questions and progrming questions.
Wednesday, November 7, 2012
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.
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.
Wednesday, October 31, 2012
Week 8 Journal
In today's lecture, we've learned about different kinds of operators and operating systems.
An operating system should have kernel (shell, sheield access to hardware, referee sharing); untilities (repair, maintain machine, list files, format disk)
Also, in the DrRacket section, professor introduced about palindrome which is "A word, phrase, or sequence that reads the same backward as forward, e.g., madam or nurses run."
Wednesday, October 24, 2012
Week 7 Journal
Here comes my first journal!
Firstly, I would like to talk about last week's lecture. In last week's lecture (October 24th), professor continued doing improvements on the barracuda clock we did on the third week lecture. Professor put the basic functions we leaned in week three and added some new funcion to the big bang model. When I first work on the qustions in the pdf textbok, I felt a bit struggled. But I had overcome the difficulty eventually by asking my friends and theTAs during tutorial. Moreover, I would like to share the following example to you guys. This DrRacket code will create a blue square with side width 10 on a 100 by 100 window size, and the square is getting larger by the second.
Firstly, I would like to talk about last week's lecture. In last week's lecture (October 24th), professor continued doing improvements on the barracuda clock we did on the third week lecture. Professor put the basic functions we leaned in week three and added some new funcion to the big bang model. When I first work on the qustions in the pdf textbok, I felt a bit struggled. But I had overcome the difficulty eventually by asking my friends and theTAs during tutorial. Moreover, I would like to share the following example to you guys. This DrRacket code will create a blue square with side width 10 on a 100 by 100 window size, and the square is getting larger by the second.
; square-of-width : number -> image
(check-expect (square-of-width 10)
(square 10 "solid" "blue"))
(define square-of-width (square n "solid" "red"))
(big bang 10
(check-with number?)
(on-draw square-of-width 100 100)
(on-tick add1 1))
(check-expect (square-of-width 10)
(square 10 "solid" "blue"))
(define square-of-width (square n "solid" "red"))
(big bang 10
(check-with number?)
(on-draw square-of-width 100 100)
(on-tick add1 1))
Wednesday, October 17, 2012
Week 6 Journal
I had the quiz back in the tutorial and I get to kno my mark on the website. The mark I get match to my expectation.
In today's lecture, we had continued on algorithm, professor mentioned that there i NO potentially an algorithm to solve every problem. Also, if there are more than 1 algorithm to solve the problem, then we will choose the most efficiency algorithm.
Also, we've learned the steps of problem solving using the approach suggested by Polya:
1. Understand the problem
2. Devise ( one or moew) plan (s)
3. Try the plan
4 Look back
In today's lecture, we had continued on algorithm, professor mentioned that there i NO potentially an algorithm to solve every problem. Also, if there are more than 1 algorithm to solve the problem, then we will choose the most efficiency algorithm.
Also, we've learned the steps of problem solving using the approach suggested by Polya:
1. Understand the problem
2. Devise ( one or moew) plan (s)
3. Try the plan
4 Look back
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