用S函数编写的感应电机的模型，不好找，小伙伴们赶紧收藏吧-Induction motor is written using the S function model, not easy to find，Small partners quickly collection.

匈牙利算法的MATLAB实现，来自MATLAB网站上的，我做数学建模的时候用过，很好用，需要花很多时间参透才行。-Hungary MATLAB algorithms implemented on MATLAB the site, I do mathematical modeling of time used, very easy to use, you need to spend a lot of time to fathom the job.

热传导方程采用前向差分法求解，内容详细，通俗易懂，并配图像-The heat conduction equation is solved by the forward difference method, the content is detailed, easy to understand, and with the image