sannee

10 ms·

31.
by sannee 5y ago
Ah, that's it then. I figured they would likely have a passcode, since the "someone steals my phone on public transport" threat vector is a pretty obvious one even for non-tech users. Unfortunately the thread got nuked before
32.
by sannee 5y ago
Modern Android actually does support disk encryption. And the Pixels even have TPMs that should (?) safeguard the key, preventing offline brute forcing the unlock pattern. I wonder what happened here that this did not work...
33.
by sannee 5y ago
Generating functions are already there (that is just math-speak for the Z-transform).
34.
by sannee 5y ago
Possibly an artificial "salt lick" [1] that got displaced from its original position. [1] https://en.wikipedia.org/wiki/Mineral_lick
35.
by sannee 5y ago
Is it just me or does the app get rather unacceptable drawing latency after the screen is somewhat filled? On the other hand, I like that it actually handles pressure, though even the thinnest pen size is rather thick at the default zoom le
36.
by sannee 5y ago
Yeah, I do not think I have a good source at hand, this is a fun fact from an E&M lecture we had. I also wonder if anyone actually experimented with microwaving their dinner at 10GHz or if that was just an educated guess. X-band magnetr
37.
by sannee 5y ago
To expand, apparently microwaving food right at the absorption peak sucks because of low penetrance, heating only the top layer of the food. The reason 2.4 GHz was chosen was purely as that is where the ISM band already was at the time.
38.
by sannee 5y ago
Supporting the LaTeX expansion is just a necessary feature of any Julia-compatible code editor. It is not then particularly more difficult to type `\sigma` over `sigma`. Also note that other languages often support non-ASCII identifiers as
39.
by sannee 5y ago
To be honest, just dealing with this once can make you remember it for eternity. For example, I know that if I want to declare a computer peripheral to the customs, there is a good chance to get the correct TARIC code in the chapter that li
40.
by sannee 5y ago
I, for one, am happy that I can get enough parts for a prototype run even if at 5x the price. Especially as otherwise, those parts would just get sold to the car manufacturers and would be used to make ethically questionable products.
41.
by sannee 5y ago
> Perhaps the idea was that you get a fast connection resume This seems unlikely for the reasons you listed. Since USB is a polled bus and has shared bandwidth, implementing the flow control is likely very beneficial in case the bus can&
42.
by sannee 6y ago
v0.11.0-rc2 got released around two weeks ago. But I never had any issues using the v0.10.0 for what it's worth. If your debugger and MCU are supported, there is not much that could go wrong.
43.
by sannee 6y ago
Is this an accuracy or precision issue? I am imagining that if you actually have access to the device, you could do as many runs as you want, getting to arbitrarily low error rates.
44.
by sannee 6y ago
Let me sketch a way to get the determinant basis-free: Say we live in an n-dimensional vector space V and have an endomorphism f : V -> V. Now, we consider the pullback [1] f* : Λⁿ(V) -> Λⁿ(V) induced by f on the vector space of n-lin
45.
by sannee 6y ago
This was apparently one of the story points in Fish to Mars by Peter Watts ( https://www.rifters.com/crawl/?p=8217 ).
46.
by sannee 6y ago
This lecture series by Frederic Schuller is pretty amazing: https://www.youtube.com/watch?v=GbqA9Xn_iM0&list=PLPH7f_7Zlz... Notably, it treats QM with much more rigor than is usual in introductory courses, so having a n
47.
by sannee 6y ago
Using a proper microscope for soldering was definitely one of the most useful things I learned as a high schooler interning in an electronics lab. I am still surprised that this is not more common. Even a biology-grade binocular microscope
48.
by sannee 6y ago
I spent quite some time being confused about this. In differential geometry, we traditionally parametrize curves by a parameter "t" and think of it as "time", so the parametrization allows us to "walk along" a
49.
by sannee 6y ago
The Debian ripgrep binary is 5.1MB. That would consume over 15% of a 32MB flash, which is the common constraint you have to work with in many (actually, discounting Android, it might even be most) Linux deployments.
50.
by sannee 6y ago
Altought the answers so far posted are not exactly incorrect, it is also important to note that the geometry (that is, a cylinder for optical fibers) of the waveguide used influences the group velocity of the propagating electromagnetic fie
51.
by sannee 6y ago
Note that projective spaces are not vector spaces. There is no meaningful way of adding vectors nor multiplying by a scalar. Meaning we have to be very careful about treating our projective transformations as linear maps, as they are, in fa
52.
by sannee 6y ago
LADR is probably the best linear algebra book around. It's a bit of a shame that the "marketing" mostly involves the fact that it does not use determinants. The last edition also contains chapters on stuff like dual spaces an
53.
by sannee 6y ago
Julia positions itself not as a Python alternative, but as a Matlab alternative. People also sometimes use Python as a Matlab alternative and hence would use Julia as an alternative to Python only by transitivity.
54.
by sannee 6y ago
I know that qPCR is preferred for diagnostics, but is it actually necessary? As in, will the false positive/false negative rates suffer enough for standard RT-PCR to be useless?
55.
by sannee 6y ago
Glad I am not the only one finding this extremely frustrating. At least mathematicians tend to be much more explicit than engineers. Unfortunately not every topic which uses probability has a textbook written by a mathematician available.
56.
by sannee 7y ago
Oh you sweet summer child. If you want to buy a laptop these days, you have to shell out 300$ for what is basically half of the motherboard and connect it externally over USB-C.
57.
by sannee 7y ago
I can still find stuff like amoxicilline, ketoconazole or paracetamol on Alibaba. Maybe the ban is only on some specific chemicals?
58.
by sannee 7y ago
Did you need to handle the customs paperwork? I find it hard to believe the customs would just ignore a bunch of strange powder coming through the mail... And even if they did believe you it was not cocaine, I would still assume they would
59.
by sannee 7y ago
It's usually done to prevent cheap chinese clones of your boards, not so much for security.
60.
by sannee 7y ago
You can still provide a write-only bootloader interface (over UART or whatever) to allow for firmware updates.

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