5 ms·
https://xkcd.com/1364/ https://xkcd.com/1364/
by mc3 7y ago
https://xkcd.com/1364/ https://xkcd.com/1364/
- cjsawyer 7y agoCute stab, but the expression isn’t literal and you know that. Explaining concepts without unnecessary jargon is a reasonable request since there are different levels of background knowledge in any audience. The parent comment to your reply is using undergrad-level math terms, how high do you want the barrier to be? Knowledge is pointless when poorly articulated.
- 8ytecoder 7y ago“if you can’t teach it to someone else, you really don’t know it yourself” -- Richard Feynman
- Koshkin 7y agoWell, it's a research paper, not a tutorial.
- phkahler 7y agoYes, but the result was simple enough in hindsight that it should probably be in every introductory linear algebra text.
- Koshkin 7y agoLooks like it's not that simple. It does make sense in hindsight - because the quantity of information is the same, but that does not necessarily mean that the actual calculation or the proof must be simple.
- afarrell 7y ago> Knowledge is pointless when poorly articulated. Only as pointless as giving someone eggs and a pound of flour when they want cookies.
- dang 7y agoWe detached this subthread from https://news.ycombinator.com/item?id=21530532 https://news.ycombinator.com/item?id=21530532 and marked it off-topic.