Check out this tool I made to predict the arXiv classification of math papers.
Biography
Before graduate school, I was an undergraduate at the University of Chicago. Prior to that, I went to Saint Paul Central High School in Saint Paul, Minnesota. However, from grades seven through eleven, I took my math classes through UMTYMP (University of Minnesota Talented Youth Mathematics Program). I enthusiastically endorse UMTYMP, and cannot overstate its impact on me mathematically.