That might well be for sufficiently advanced combinatorics or information theory. But I have done just fine without calculus tools in my computer science degre

That might well be for sufficiently advanced combinatorics or information theory. But I have done just fine without calculus tools in my computer science degree (not purely computer science or math, though), which I'll be starting on the fifth year of this fall. This is isn't to say that you don't need calculus in computer science; it is to say that you don't seem to need calculus for basic and introductory computer science courses, and things related to that; discrete math has been much more relecant. In spite of that, my department has calculus as its math course (you can also take stats in parallell), while discrete math is in the second semester. They also advice students that haven't taken the most advanced math in high school against taking the most theoretical/mathematical computer science degree. This was due to the calculus course building on that high school math experience. But then the discrete math course - which is much more directly relevant - does not build much or at all on calculus, and you can do just fine without the most advanced high school math in that course. Maybe the only thing you'll suffer from is having a bit less mathematical maturity at the offset. But since they start with calculus, they discourage people like me who, while not having had the most advanced calculus (or pre-calculus) in high school from taking a more math-heavy degree, even though I've found to like a lot of the math involved in some subfields of computer science!