June 26, 2017 at 8:58 PM by Dr. Drang This morning, Federico Viticci tweeted out this image, captured from one of Apple’s WWDC videos. My first thought was that this supported my impression that programmers, as a class, aren’t especially good at math. Not that the equations are incorrect, far from it. But if the hatted variables are constant offsets from their unhatted versions, do you really need