Greetings PF. First off, I just discovered this site and I've already found it to be quite valuable. Cheers to the moderators! Now then, my inquiry. I have been accepted into an aerospace engineering program and have made plans to return to school full time this fall. I barely made the cut-off for minimum GPA and I got my B.A. in physics about ten years ago. For the past year, I've been taking math refresher courses (lin. alg., ODE, and calc III) to prepare for re-entry (pun intended). Important note, I've never actually taken an engineering course and my adviser has placed me in mid to upper level undergrad classes for my first semester (15 hrs). Although I'm very interested in the topic, I am a bit nervous about re-entering school as engineering grad student since I haven't even had CAD or any programming courses. I feel as though I'll need to learn things on the fly. Has anyone faced this issue before? If so, did you successfully navigate the program? I'd really like to hear from people who were in a similar situation. Also, I've long been curious about mech. vs. aero regarding my chosen path. From browsing online posts in recent days, I've read that the math associated with aero is much more difficult than mechanical. Is this true? I would appreciate honest and direct feedback. Thank you in advance.