solrize

joined 2 years ago
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[–] solrize 3 points 3 months ago

I'd expect textbooks would have tons of exercises at that level. Schaum's outlines are good for college level math but I don't know if they have them for stuff like basic algebra. I have a friend who is a HS math teacher so I can ask her for recommendations and get back in a day or so, hmm.

[–] solrize 4 points 3 months ago

You didn't see the movie "My Beautiful Laundrette".

[–] solrize 5 points 3 months ago

Lemmy is pretty bad at privacy, tracking not only your posts, but which posts you have read, which comments you have up or down voted, etc. Most "privacy" VPN services are scams, so don't expect privacy from them. Someone suggested using internet at public libraries, but those usually want you to log in with your library card, so that goes back to you too.

Best thing to do, I think, is run your own lemmy instance so it receives all of the posts and comments, so you can read what interests you without having the reads tracked on someone else's computer. Then avoid posting on edgy topics.

It disappoints me that Lemmy tracks reads and votes on the server. Reading should tracked only on the client (if at all), like with Usenet. Having your reading examined is even more invasive than having your posts examined. I'd be happy if voting were eliminated altogether, but if not, it could be made more private too.

[–] solrize 44 points 3 months ago (2 children)

No way to prevent this, says only party where this regularly happens.

[–] solrize 10 points 3 months ago* (last edited 3 months ago) (4 children)

You have to write out a lot of exercises and there is no getting around it. You can't learn the violin by watching videos or reading a book. You have to practice. It's the same with math. But as people said, Khan Academy lectures are very good in steering you through a topic.

Besides algebra, I think it is important to know a bit about probability and a bit about logic. Don't worry about stuff like covariance matrices, but understand what conditional probability is (be able to explain the "prosecutor's fallacy") and write out some of those annoying exercises about urns full of colored balls. Also, show how to write e.g. "you can fool all of the people some of the time, and some of the people all of the time, but you can't fool all of the people all of the time" in predicate logic notation, and see how the parts of the sentence involve switching the order of quantifiers.

[–] solrize 3 points 3 months ago (1 children)

Empirically, 42.25 instead of 42.

[–] solrize 1 points 3 months ago* (last edited 3 months ago) (2 children)

I'm not sure what you mean about "alternative process" for updates. In the chart you posted, the US got 466227 updates in 1 day which is about 14 million per month if that happens every day. If they are 100 bytes each (no idea if that is realistic), that's 1.4GB a month for the whole US. Right now a new map download is something like 1.1GB for California alone. California is the biggest US state (not in terms of land area but certainly in terms of roads) but the whole US might be 10x or 20x bigger.

I'd say OM is less in need of new features than of getting its existing features working solidly, warts ironed out, etc. The one major feature improvement i could see is getting the voice directions to include street names, but in practice it's not that important, at least in my usage.

Google Maps has a sometimes useful feature that an offline app like OM can't possibly get, which is routing and ETA calculations based on realtime road and traffic conditions. I don't rely on that very often, but on occasion, it really helps. Unfortunately I suspect that much of the traffic data comes from the devices themselves phoning home with their locations, and only Google and Apple have enough devices out there to usefully do that.

[–] solrize 1 points 3 months ago

I don't know what to add, I haven't used Matrix so I'm unfamiliar with it and might be misreading it. But it seems to have an aura of "look how cool and hip this is". Irc is old and comfortable even though it has a bunch of annoying limitations.

[–] solrize 6 points 3 months ago

I thought they switched to hijacking railroad tank cars, after seeing the show. You need a ridiculous amount of tablets (or cough syrup or whatever) to make drugs, and the druggies have supposedly switched to more industrial-scale methods by now.

[–] solrize 1 points 3 months ago

If he had only said Nigeria instead of Dubai, nothing would have happened to him.

[–] solrize 3 points 3 months ago

The interesting thing is if the manufacturer is shipping them that way by default.

[–] solrize 19 points 3 months ago (4 children)

I've used this stuff and it worked for me, but yeah, the real stuff (pseudophedrine) is better. Now if they could make pseudophedrine a regular OTC drug again. Nobody really uses it for Breaking Bad shenanigans, I'd hope.

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