Here are instructions to help you start computing pseudospectra
right away using MATLAB®.
- Click here
to download EigTool for Unix or Windows systems.
- Follow the instructions to uncompress and install EigTool.
- Start up MATLAB, and exectute the following command:
- If all has gone as planned, you'll see the pseudospectra
of a Grcar matrix of dimension 32, as shown below.
- Experiment with the options in the interface: try a finer grid,
zoom in for a closer look, or change the plotting options.
When you're done with the Grcar matrix, try a matrix of your own!