Math Is Fun Forum

Alright onto the next transformation

You can duplicate what the clock did with these lines, alright what is next ?

What I have done is been plotting points on a curve.  Yet I'm not understanding what I'm doing when I change the positions.  You mentioned we are working with a 2x2 matrix in this case

0,0
0,0
0,0
0,0

Is that all a 2x2 matrix does it in this case change the position ?

2,2-2,2
2,2-2,2

That is just an example of a 2x2 Matrix setup correct?

Correct, what was it before so I can compare ?

Within that page they are using a 3x3 Matrix, could you give me an example of a 3x3 matrix ? After you help me understand a 2x2 Matrix and a 2x1 and what is the difference between a 2x1 Matrix ?

I was informed that a matrix can control one aspect of another, as seen on that page I posted that is what I'm trying to understand Unless I won't be able to understand until after understanding 2x1 and 2x2 Matrix ?

Are you saying that a basic thing a matrix does is rotate around a origin ? Do you have another example, that goes into more depth of matrix?

I changed the line position formally it was at 12 now it's at 4 ?

What is happening now it seems like all I'm doing is moving points around and making lines.

I get the graph seen in the image, but I don't understand other then I've plotted some points.

In this case the Matrix rotated around the origin, in other words that is just one thing that a matrix can do, which is rotate around it's origin ?

Give me another example so I can slowly understand.

I made the line bigger, Ok I don't quite get it.