Mathematics, mat. analysis, derivatives, integrals, etc.

Generally, we need it? So I have not used this knowledge for 5-7 years. But in principle, it was quite good to write the program code (although, I confess, there was little innovation there). And who, apart from various enthusiasts who paint 3d scenes where they can run on javascript, uses this knowledge?
Is it necessary or not? Those. The question is, how much is this knowledge applied in web programming?

Shl. Well, my personal IMHO is a kaneshna damn, you need to know all this, and never forget if you learned how to use the multiplication table. (although I can't boast of it yet, I didn't know, but I forgot)