petschge

20 ms·

151.
by petschge 5y ago
So you are saying that HN-types got theirs (the huge salary), so they should not care about others? Or are you causing them of a "I got mine, fuck you" attitude? I am still not sure what you are trying to say. But the fact that yo
152.
by petschge 5y ago
There definitely are. The simple pendulum (or rather harmonic oscillators) are the problem we want to transform harder stuff to, because we know how to solve that one. In other words, you might have to make a bunch of assumptions till you h
153.
by petschge 5y ago
Same is true in the US.
154.
by petschge 5y ago
What does this offer over say LT-Spice?
155.
by petschge 5y ago
Yes you cite the paper that you disagree with and yes by typical bibliometric measures that is counted as a citation.
156.
by petschge 5y ago
Wait: Can you always test for divisibility by $n$ in base $n+1$ like that?
157.
by petschge 5y ago
I do. Because I live in an area where I need to use CDMA. Sure, there is a couple of spots in town that have other cell phone networks as well, but in a lot of spots and basically all buildings you need to use Verizon (or one of the reselle
158.
by petschge 5y ago
Using a "proper" debugger on a supercomputer tends to be super tricky and the correct setup tends to depend on the machine. And even if you have a debugger attached to all 100k MPI processes, where do you look? And if you try to d
159.
How Tesla’s new touchscreen drive selector works(theverge.com)
2 points by petschge 6y ago|1 comments
160.
by petschge 6y ago
Let's just say labs pay way better than universities.
161.
by petschge 6y ago
It's not that uncommon in HPC codes. I.e. one of the places where speed matters.
162.
by petschge 6y ago
So far I have imposed mainly F(x,y) = F(y,x). You could also enforce F(-x,-y) = -F(x,y), but I have not done that. The second reduction that I mention is actually to require every F to satisfy either F(-1,y) <= F(0,y) <= F(1,y) OR F(-
163.
by petschge 6y ago
It ONLY makes sense if you view trinary as (false, uncertain, true or -1,0,+1). That is NOT the only view of trinary, but it is useful for e.g. soft-decision decoders.
164.
by petschge 6y ago
One thing that really cuts down on the number of operators that you need to consider is the requirement of symmetry. If two inputs are swapped you still want the same output. In binary this requirement removes 8 of the 16 operators. The fac
165.
by petschge 6y ago
One of the commenters even made it look like a wikipedia page. See https://dump.cy.md/4042875593f06aa0cbe7722295831c10/Screensh...
166.
by petschge 6y ago
It might look like that. But it doesn't. At least not yet. Have a look at https://en.wikipedia.org/wiki/Mean_center_of_the_United_Stat...
167.
by petschge 6y ago
You could also just use Debian instead of Ubuntu.
168.
No Evidence for Orbital Clustering in the Extreme Trans-Neptunian Objects(arxiv.org)
2 points by petschge 6y ago|0 comments
169.
by petschge 6y ago
Something like that might work. I am surprise that the temperature stabilized local oscillator is so cheap. Care to share a link? The other thing that can help is to put receivers not too far apart. Say 25 dishes in an area with 100 meters
170.
by petschge 6y ago
If you want to do that at 140MHz, sure. But at 11GHz interferometry is -- despite being conceptually the same -- quite hard.
171.
by petschge 6y ago
Except you need closer to 0.01ns for this use case instead of the 55ns you get out of the GPS receivers. And half your data would have more, possibly much more, deviation than that anyway. If you don't know which half, that will lead t
172.
by petschge 6y ago
Absolute positioning is not that important as long as the relative positions are constant to within a small fraction of the wavelength, in this case to within a millimeter. Which is feasible if you mount it to the side of a building and the
173.
by petschge 6y ago
The "lock-in magic" you are describing is called "phase folding" in the pulsar community and can be done in software. The expected rotational frequency would be taken from an ephemeris file and there is tools to search f
174.
by petschge 6y ago
How do you propose to detect if A, B, C and D are a cabal that push their own papers or if they are the people who actually know the subject and want to improve the quality of paper that new people produce?
175.
by petschge 6y ago
And of course there is C++ libraries to do the same. For example the blitz++ library. Negative indices to the left of element[0] are great for ghost zones in codes that do domain decomposition over different MPI ranks.
176.
by petschge 6y ago
78.6.1 is the current ESR release. That up to date enough.
177.
by petschge 6y ago
Depends very much where in the US. And to some extend how you look, how you talk and what your gender is. The overwhelmingly large majority to places is safe. But every large enough city has unsavory places that need at least being aware of
178.
by petschge 6y ago
Not my file, but I have produced HDF5 files in that size range using simulation codes on supercomputers and paraview can open them and render 3d view as video from it (eventually).
179.
by petschge 6y ago
No, exactly the other way around. Boeing pushes the FAA around, in China it is the aircraft manufacturer that gets told what to do.
180.
by petschge 6y ago
How is any of that relevant to libraries of mathematical functions and (more generally) of mathematical models and their properties?

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