Well, after 6 years of professional software engineering after finishing my BS in CS, the only things on that list that I've came anywhere close to using are the natural join and Demorgan's laws.
I think this is a pretty silly post, to be honest. CS covers so much, and everytime I see a list of "things you should know", I have to resist the urge to roll my eyes and ignore it. But then I read it, and inevitably roll my eyes anyway.
I think this is a pretty silly post, to be honest. CS covers so much, and everytime I see a list of "things you should know", I have to resist the urge to roll my eyes and ignore it. But then I read it, and inevitably roll my eyes anyway.