Hello math people. I wasn't sure whether to post this here or in the computer science section, but anyway, my question is this: Which areas of math are of particular significance for a computer scientist? I'm asking this because i recently came to the conclusion that i want to become one, but i am currently going to a vocational school which emphasizes more on business mathematics (despite it being an IT related field). It would also be nice if you (math people) could include some sources (books, links) where to learn about these areas of math.

Thanks for reading.