Question

Matlab help, please.
I am new in the field. I don't know what they mean by doing that. Someone help me, please.
Problem 1: x(t) = cos (t) -3sin(t)
y(t) =-2sin(t) -cos (t)
Question: on line 12, what does 'k' mean?
On line 14, what does '--b' mean?

Answer 1

k means black,
-- means dashed, and b means blue

Answer 2

In the front of "problem 1", "problem 2".... I saw a symbol. I know that symbol to tell Matlab it is a verbal, not a part of problem, but what is it? how to type it on keyboard?(line 1, line 7, line 10)

Answer 3

% is used to make comments, which are not executed when run.

Answer 4

One more thing, it is from editor box. In class I was taught to type them on comment box. How to move data up to editor box?

Answer 5

what does "hold on", hold off use ?

Answer 6

You seem to have many questions :D Matlab documentation is the best source to look things like these up. Not sure what you mean about the editor box stuff though.
http://se.mathworks.com/help/matlab/ref/hold.html

Answer 7

Thanks for the help. :)

Answer 8

@aleroth Look at the top left corner, you see editor window, at the middle of the page, we have command window. My Prof works on editor window but he teaches me working on command window. I want to know how to work on editor window like him. :)