Hello I'm cs student and I want to go full digital and replace all my papers. I will use my iPad only for note taking. I always carry my laptop with me anyway. I'm worried that I can't fit in long equations or longer sentences on the iPad Pro in portait mode. Is it possible, to just write everything in landscape mode and then switch to portait mode to read them? I've already red every thread on this forum about note taking but I'm still not sure. I just ordered the 9.7 iPad but I'm thinking about canceling the order and getting the 12.9 iPad. But since I'm a student, 200€ is a lot for me and I'm not sure if its worth getting the 12.9 one. I just don't want to get the 9.7 iPad and then realize in class that i actually can't use it and I just wasted 650€ because note taking is realy the only reason I want to get one.