Geometry Animation
Allows you to animate a dancing figure using scalings and rotations. You can input a scaling parameter as a function of the variable t in both the x and y directions, and a rotation angle, again as a function of t. The slider will create an animation based on applying the matrix M that can be produced as products of scalings and rotations. You can change the product in M to combine different scalings and rotations in any order you like. The values for tmin and tmax determine the endpoints of the interval of animation and tinc gives the step size.