So Ive decided that Im going to become a physicist(a theoretical physicist , field is still undecided). I'd like to co-major in either math or engineering so I'd like you guys to evaluate Physics-Math Double Major as opposed to Physics-Engineering Double Major What are the adv/disadv of each and which of these would complement and help me in becoming a better physicist.. also I know I havent specified the field of Engineering but I have yet to decide .. If you folks have any idea as to which field in engineering would best complement my knowledge in Physics then I'd appreciate it. Thank you. Also Ive seen a similar thread but the answers are pretty vague.