Thank you for the course! It is just what I need for graduating this year finally... oh. I have read a little bit your material, and also it has good support for graphics, both 2d and 3d. In general, it is an efficient tool for solving problems because it integrates all functionalities I can imagine: symbolic calculations, sophisticated manipulation with equations, very good numerics, pretty graphical output. I observe that you have a style similar to https://phdessay.com/essay-type/exemplification/. Therefore, your manual becomes easier to use. The method of exemplification and the description about how to resolve integrated into a short essay is more accessible for students' minds.