wfunction

7 ms·

151.
by wfunction 9y ago
> My student society for example > need to expose critical internal services on the public internet, some of which contain private user data. The heck? Are they aware of this? Might you get sued for this?
152.
by wfunction 9y ago
> Where, where does it say that std::deque is supposed to have O(sqrt(n)) space requirement as worst case? Nowhere! Where did I even claim it said that anywhere?!
153.
by wfunction 9y ago
...you were asking what's so "exotic" about compact dynamic arrays if they're just deques? I'm telling you they're not deques, because they have additional constraints that deques don't have. Are you int
154.
by wfunction 9y ago
I don't get what you're arguing against, if anything. Can you make an actual claim and tell me where I'm wrong? Literally all I've been saying so far is that std::deque does not meet the O(sqrt n) space overhead of compa
155.
by wfunction 9y ago
> I mean you've already said you don't know what you're talking about ("I have no idea what [Cat III] means.") but you're totally cool with taking a confidently authoritative tone on it anyway, I'm not
156.
by wfunction 9y ago
> As far as "stupid mistake" goes, you sure do seem quick to judge professionals in a highly technical field totally unrelated to your own The heck? Everyone makes stupid mistakes. Hell, I make more of them than a lot of people
157.
by wfunction 9y ago
I mean including information/labels like "taxiway XYZ" that could make a stupid mistake like this obvious. Or are you saying they already do this?
158.
by wfunction 9y ago
> What is your definition of manual intervention? I was thinking of autopilot disengaging, but that's not really important here. I'll go along with what you just said. > Pilots get updated instructions from the tower - the G
159.
by wfunction 9y ago
O(n) in my comment refers to space overhead. You're talking about time.
160.
by wfunction 9y ago
The issue is you're treating this as though (1) cruising can be done on autopilot via GPS because it doesn't need much accuracy, (2) landing can also be done on autopilot because we have more accurate systems, but (3) the transiti
161.
by wfunction 9y ago
No, std::deque has O(n) space overhead... the goal here is to get that to O(sqrt(n)), and in the worst case too.
162.
by wfunction 9y ago
> Now if you need to do that in a Cessna at 75 mph with no more than 4 people on board, why wouldn't you also need to do in a 787 that lands at ~180 mph with nearly 300 people, or an A380 that lands at ~140 mph with over 500? Becaus
163.
by wfunction 9y ago
You can "upload" something from your iPad to the autopilot system without any kind of certification?
164.
by wfunction 9y ago
> And finally, the one factor that happened to be the first of these to happen: > * Multiple pilots looking directly toward the oncoming aircraft, one of whom alerted ATC. I don't get this. You're an engineer/pilot&#x2F
165.
by wfunction 9y ago
Thanks for the detailed response. > Automatic landing systems rely on ground support by way of microwave signals from transmitters installed near autoland-capable runways. There's no general position information, and the airborne pa
166.
by wfunction 9y ago
Okay so let me get this straight: you're telling me that passenger airplanes currently fly by dead reckoning or stellar navigation or ground-based triangulation or something else? When a pilot doesn't know where he is, he doesn&#x
167.
by wfunction 9y ago
> You know what else Google maps does? It quits working at random times and behaves unpredictably in low precision GPS scenarios. OK, so you're saying airplanes don't already have GPS systems that work better? Or are you claimi
168.
by wfunction 9y ago
OK, I'll clarify. Someone suggested non-AM transmission has problems X/Y/Z; I suggested that I expect non-AM transmission has overcome problems X/Y/Z in the military, and therefore I'm not convinced this is the
169.
by wfunction 9y ago
Are you suggesting their current GPS systems have that kind of issue though? I'm just asking for an interface to be added, not a entire concept of GPS functionality to be added. I'm assuming the latter is already used. It's n
170.
by wfunction 9y ago
> I'm so glad I left that place. I've never lived in a place that was so obnoxiously proud of its past, all the while so completely hypocritical about its present situation. Great school, shit town. You found the town was pro
171.
by wfunction 9y ago
> it's not like (s)he's just with crossed arms watching the show I mean I wasn't assuming that was the case either...
172.
by wfunction 9y ago
Can you tell me what the second safety margin that kicked in here and saved them was? Seems to me that it was another pilot noticing them and asking "Where's this guy goin'?" which is not something I'd consider to b
173.
by wfunction 9y ago
Aw man, sad to read this but thank you.
174.
by wfunction 9y ago
Yes, I don't know the types, but any kind of display that can show the relevant information would seem viable in 2017 :-) so it seems the main answer to "why?" is just "because adopting such technology is abysmally slow&
175.
by wfunction 9y ago
> "Military-grade" systems use complicated techniques like frequency-hopping spread spectrum Note that that technology has been around since World War II. And fun fact, while we're on that topic, this page is worth a read:
176.
by wfunction 9y ago
Wow, did not know. Thank you.
177.
by wfunction 9y ago
I wasn't complaining about the transmission quality, I was just trying to understand the parent comment. The person who complained about the former was someone else.
178.
by wfunction 9y ago
Okay, but do military-grade systems use AM like this too? I imagine their needs aren't any less than those of civilians, and I imagine they've gotten their communication systems to work just fine. So what's the issue?
179.
by wfunction 9y ago
I can't tell if my expectations are just too high, but the impression I'm getting from all your answers is that pilots just don't have a dynamically updating (i.e. digital) map. It seems like everything is a bunch of number
180.
by wfunction 9y ago
Haha, thanks! Will fix that last bit.

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