Compare the difficulty of postgraduate entrance examination for mathematics majors in Xigong University, Northwest University and xidian university. . .
As far as the strength and reputation of the school are concerned, Xigong University is the best, followed by Northwest University and xidian university. As far as the professional strength of mathematics is concerned, Xigong University ranks 23rd in China, while Northwest University and Xidian are out of 60. The mathematics of Xigong University is still good. It is difficult to take the postgraduate entrance examination for the periodical "Advanced Mathematics". Xigong University = xidian university.