Mathematical modeling competition is coming, I don't know much about sas, and I don't know where sas is used. I am not good at mathematical statistics, and I don't know when to use it.
SAS is not working. This software is very big and has many functions. Belonging to enterprise software. There are several kinds of software used for modeling: MATLAB, mathmatic and lingo. These three softwares are used by many people. If MATLAB is familiar, use one of them. Mathmatic is powerful, and lingo mainly deals with operational research. If you have mathematical statistics, you can use MATLAB or SPSS.