“DAX is simple, but not easy!” Let’s learn some of the DAX nuances that can make you a true Power BI hero! — “DAX is simple, but not easy!” — famously said Alberto Ferrari, when asked which best describes Data Analysis Expression language. And, that’s probably the most precise definition of the DAX. It may look very easy at first glance, but understanding nuances and how DAX really works, requires a lot of…