Well, matlab, fortran, signal, identification, modeling, control, simulation, optimization and so on are basically used in engineering mathematical calculation. . . As long as you are exposed to engineering mathematics, the low-level ones may not be used, and the advanced ones can't bypass matlab. Of course, some people think it is expensive, so fortran, C/C++ and so on are used, but the essence is the same.

Chemical engineering is mainly modeling, forecasting, regulation, control, etc. ~ ~ Of course, it also includes simulation and optimization ~ ~ As far as I know, MPC, model predictive control, is the most widely used chemical engineering.