I'm currently majoring in computer science, though I'm starting to really like math. I've only taken calculus. I will take Linear Algebra and Differential Equations next quarter. It seems that most people who major in math dedicate a lot of time to that particular subject, but computer science classes are also very time consuming, so I'm not sure if it's a good idea to do a double major. How are upper division math classes like compared to lower division math classes? I'm thinking of taking this class over the summer. Is it going to be a waste of time and should I just take a class that would actually count for major requirements? Then would it be better to take Linear Algebra or Intro to Analysis? Thanks in advance for any advice.