Some simple visualization exercises

The idea with the following exercises is that you should become used to thinking about visualization. It will give you practice in using Matlab as well. Some of the exercises can be solved in several different ways, so feel free to make some experiments. To get a passing grade your solution must  work and it should be reasonable, however.

Nov 16, 2010: IT-service has fixed the problem with the group area, so the instructions in the original lab-text should work again.