Click on the xy-plane to draw a polygon.
Then click on the "Click when Done"
button when finished

Video on how to use this tool
Information on Matrix Transformations
Information on Homogeneous Coordinates

Number Entry:  You can enter any numbers
 into the matrix including expressions such as
2^3/7 or sin(pi/3).

Prerequisites:  Knowledge of Matrices
as functions, understanding of homogeneous
coordinates, and transformations of the plane.

Learning Outcomes:
1.  Rotate a plane with a matrix
2.  Shear an object with a matrix
3.  Reflect across the x and y axes with a matrix
4.  Translate the plane with a matrix