How can I create and manipulate multiple points in MATLAB?

[eltrinco]

Homework Statement

i had some problem with MATLAB of how to create two points of random positions and adding another few random points

Homework Equations

how to create the points, set a point as the centre, make the iteration for one point to rotate the centre and also the other iterations for the rest of the points to rotate each other

 

[Simon Bridge]

To set random points use the rand or randn functions.
The other operations are translation and rotations - there are matrixes for those.

i.e. 5 3D points at random would be X=rand(3,5) - each column being the coordinates of a point.
The first data point, for eg, is x1=X(:,1)

For a translation T, just do X=T*X
For a rotation R, just do X=R*X

... look up translation and rotation matrixes to see how to make them.
http://en.wikipedia.org/wiki/Transformation_matrix
http://en.wikipedia.org/wiki/Translation_(geometry )

Note: MATLAB has a lot of built infunctions, why not look through the documentation?