My hardest classes is anyone's involving Mathematical Proofs
I am good at math and enjoy it. I was an econ major and those were the hardest econ courses. That was the third level of micro...it's not numbers at all in either class. It was all abstract using proofs/propositions. Not one single mathematical calculation in either class
So far I took 2 really hard courses for me, Real Numbers Analysis and Advanced Algorithms the hardest thing of the last one was that it was in german (my mother language is spanish)