Aim of the applet

This applet allows get the representation of points in a new X and Y-axis given by a matrix.

Input data

Matrix that defines the new axes, which may be amended, and its graphical representation.

The user can add new points in two different ways:

• With the New Point tool on the top bar and clicking where you want it.
• Introducing its coordinates in the left menu.

Output data

Representation of points in the originals axes, in blue, the new axes and the points representation in them, all in red.

First steps

• Add points with the New Point tool and observe their representation in the new axes.
• Move one of the blue points just created to see how changes in the new axes.
• Add the point (-2,2).
• Modify the coordinate axis with the matrix {{-4,2.1}, {-1.5}}.