Do you have a textbook for your class? If you do, then I recommend that you go through and do many exercises similar to ones you've been assigned as homework, or seen on exams. That way you can get some practice on things you're likely to be asked about.
Ah. I'm afraid I don't have any good suggestions for you. I recommend that you post a question asking for people to point you to that kind of site. Include some details about what topics you've covered in your class. You should probably tag it (reference-request). Hopefully someone else will be able to direct you to some good exercises.
Don't worry too much about your English. If people have trouble understanding, they'll let you know. Just tell them that you need to study for an upcoming exam, but have no textbook for your class. Then tell them some of the topics you've covered. Then ask if anyone knows of a website with exercises that can help you prepare.
Feel free to ask me another question. I need to run a quick errand, though, and I will answer when I get back.
Oh, I can answer that quickly. It's probably to expose you to some of the more common applications of computer science. Linear algebra, for example, is often used with computer programs to fit statistical models to given data, and other such things.
It's possible that you'll grow to appreciate it, once you find a use for it that helps you. On the other hand, you may never find a use for it. I certainly know the feeling.
They're very closely related, actually. Abstract algebra is a more general subject, and linear algebra is part of it. In a sense, linear algebra is simply abstract algebra, applied to specific types of structures (fields, vector spaces).
Room for math questions
Room for math questions