1 matlab (matrix laboratory)
Argot and argot (linear programming)
3 SPSS & lt statistics)
Among them, MATLAB is the most important and commonly used.
C language has many similarities with this software.
Statistical software: SPSS, SAS, STATA.
A solution model of operational research: lingo
5 PS: SAS is very powerful. If you haven't touched it, don't study hard.
In fact, SPSS can solve it, but the picture drawn by SAS is very beautiful.
There is still time to look at two other softwares, SMARTDRAW LATELX.