I am a college student and purchased this calculator because my old TI 84 broke and I needed a graphing calculator with my major. I am taking classes like chem, bio, physics, and calc. This was not the calculator for me at least. Perhaps it is because I am so used to the norm of an old calculator but none of the old formulas and equations I would do would carry over. It is definitely complicated and I ended up just purchasing another TI 84 because I was so disappointed with it.