This seems like an extremely low yield way to get female attention. A male engineering student would have to take an entire class, study new material, and come up with schemes for seeming like a "chad" for the unlikely chance that the opposite gender will be impressed with him. They could spend that time building cool things. Are people really this desperate?
A 100 level math class for an engineering or other math heavy major should be easy though. A liberal arts algebra class that barely does math and spends more time talking about X and Y's feelings should be a total cakewalk if you've passed Calculus II and are taking classes on imaginary numbers and group theory. So all they'd have to do is join a study group, schedule group study time, and not even have to be all that brilliant at the math part.
If you're in college, and not interested in traditional partying (frats, loud music, beer, getting wasted; am terrible at beer pong), this is an alternative route to getting noticed doing something you're good at.