Every student takes a number of basic courses. These basic courses provide the foundation for moulding the 'Eindhoven Engineer', and will develop your transversal knowledge. After taking these basic courses you haves the knowledge you will need to follow electives and coherent elective packages in a degree program outside the one you have chosen.
The basic courses include Mathematics, Natural Sciences, Data Analytics for Engineers, Design, User, Society & Enterprise. There are different variants of the basic courses for different degree programs.
When you change your Major during your Bachelor, it is possible you have taken a different variant of a Basic Course. Contact your Academic Advisor in this case, because it is possible you have to gain some knowledge to succesfully complete your new Major.