Book Description: A computer-based course consisting of a complete interactive electronic text combined with a rich set of well chosen real life problems. The easy access to powerful technology allows experimentation. In the lab or lassroom the environment allows a partnership between teacher and student with emphasis on student responsibility. Independent study is also possible. Online tutoring is available. The courseware comes on a CD which contains all of the lessons, some extra tools, and Adobe PDF files for printing selected parts of the lessons: Lessons: Perp Frames and 2D Matrices, Higher Dimensions, Eigensystems, etc.