1. Mathematical modeling is more like a process from the real world to mathematical abstraction. In order to simplify the problem, we must go through the step of idealizing the real problem, during which we must decide which redundant factors with little influence should be discarded. Only by simplifying the problem can the model be put forward.

2. Programming is more like asking and solving problems in the abstract space itself. Therefore, programming problems are more like "pure" math problems. Because the program world itself is an abstract world based on 0 and 1, programming is more like solving abstract problems in the abstract world. Therefore, there is generally no need to consider which factors to choose.

3. In the case of their own development, their tentacles are more and more extensive, and the boundaries between them are becoming more and more blurred. Such as image processing, image recognition, etc. Although it is a programming problem, it is closer to reality than One Step Away. Or from another point of view, problems like this are solved by mathematical modeling and programming.