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Entrepreneurship
If you are interested in taking an entrepreneurship class NBA 5070 - Entrepreneurship for Scientists and Engineers (Fall, spring. 3 credits) is the course targeted to MEng students, MAE 4610 is intended for undergrads.
MEng Project
Most often MEng Projects will fall under MAE 6900, when registering you should register under the section for your project advisor/project team and choose the number of credits your are doing for the current semester, ie. a 8 credit project completed over 2 semesters, your should register for 4 credits in Fall and 4 credits in Spring.
Some students may choose projects outside MAE and you should register for the class your advisor designates, ie.BME 5910 or 5920 for a Biomedical Engineering Project.