[randomsearch]

I would say some of Computer Science is mathematics. Mathematics is the foundation of Computer Science, but CS is not a branch of mathematics, although the origins of the field are found there. It is an important, core, part of the subject, but it does not entirely encompass it.

For example, CS also includes Psychology, Graphic Design, social science, art, etc.

Also, CS involves the teaching of programming, which is a craft (ignoring edge cases) - crafts cannot be taught through maths alone.

[a_olt]

Absolutely, CS is an inter-disciplinary subject.