Hacker News new | ask | show | jobs
by embedded_hiker 1293 days ago
In high school, circa 1980, there were a few of us who were into computers. In math class, one of us thought it would be cool to write zeros with slashes through them, because that is how our computers printed them. He got marked down on his homework because a zero with a slash through it meant the empty set. Context matters I suppose. I think there are enough clues in this comment that this was in the US, not the UK.