I'm not sure why you feel the word "algorithms" needs the word "math" in the same sentence. I feel math is implied in the word. Like, how we don't need to say "mathematical statistics" or "mathematical calculus".
Anyway, first line of the course description gives you what you are asking for:
> This course is an introduction to mathematical modeling of computational problems
I agree with your point, just wanted to mention that mathematical statistics is a thing. It's usually a name given to textbooks or courses where statistics is built up from foundations in probability theory and where theorems are stated and proven vs introductory statistics courses that approach things with a more decidedly applied orientation that usually also touch lightly on subjects like experimental design and data collection
Anyway, first line of the course description gives you what you are asking for:
> This course is an introduction to mathematical modeling of computational problems