The major problem with learning mathematics is that mathematical books or papers are written in a very arcane manner, especially those yellow books from Springer. They are usually written for the experts in the fields rather than laymen who want to learn the subjects. Moreover, the demand for rigorous proofs in mathematical writings often hides the intuitions behind the symbols. On the other hand, we traders do not really care about the nitty-gritty in every single line before Q.E.D. We just care about whether using those concepts generate a bigger bonus at the end of the year. Our courses are designed to make difficult concepts easy to understand for dummies/idiots (not to say the students are such). Here are some samples that we make advanced mathematics easy to grasp at the sacrifice of rigorousness.