1, your own interests and advantages: If you are interested in some areas of mathematics and have certain talents and advantages in this area, then you can choose the relevant diversion.

2. Future development direction: You can consider what career you want to pursue in the future, what mathematical knowledge and skills you need in these fields, and then choose the corresponding diversion.

3. Employment prospects: We can examine the employment prospects and salary of different mathematical triage, and choose triage with more development potential and prospects.

4. Links between disciplines: There are also intersections and links between different mathematical shunts, so you can consider them from multiple angles and comprehensively choose the shunt that suits you best.