the_svd_doctor

12 ms·

91.
by the_svd_doctor 4y ago
Satoshi’s paper https://bitcoin.org/bitcoin.pdf Very Easy to read
92.
by the_svd_doctor 4y ago
Imho it’s awesome to learn. I don’t personally like crypto, but the idea of a blockchain is somewhat genius. Satoshi’s paper https://bitcoin.org/bitcoin.pdf is _very_ easy to read.
93.
by the_svd_doctor 4y ago
QR iteration (which uses QR decomposition) truly is a remarkable and beautiful algorithm. It was even coined one of the top 10 algorithm of the 20th century https://archive.siam.org/pdf/news/637.pdf
94.
by the_svd_doctor 4y ago
Higham is an outstanding researcher. One book I really enjoyed from him is https://epubs.siam.org/doi/book/10.1137/1.9780898717778 . He has many many other excellent ones.
95.
by the_svd_doctor 4y ago
I might be wrong about the exact historical reason. But the way I see it "spectral decomposition of A" is a way to express A as a sum of orthogonal, rank-1, operators. A = \sum l_i u_i u_i^T. Those l_i are the eigenvalues; u_i ar
96.
by the_svd_doctor 4y ago
But LU, when it works, is less flops (only half though, IIRC). And doesn't require a square-root. I think that's why it used to be preferred when compute was a very scarce resource. Clearly that's not really the case anymore
97.
by the_svd_doctor 4y ago
It can't always be computed accurately; I suspect that's why it's not mentioned. Bunch–Kaufman is the "right" factorization for indefinite Hermitian/symmetric matrices but it's not as well know.
98.
by the_svd_doctor 4y ago
Well, yeah, I use it in the context of floating-points-operations-per-seconds. That's the most common use in my field. I was replying to the parent comment. No need to use this kind of tone.
99.
by the_svd_doctor 4y ago
I heard something very similar from some of his very close (ex-)colleagues, so it appears to be true :)
100.
by the_svd_doctor 4y ago
It's always been very ambiguous in practice. To avoid ambiguity I usually use `flop/s` but not everyone likes that :)
101.
by the_svd_doctor 4y ago
The first line in the link says it’s for anyone residing legally in the EU. Not just citizens.
102.
by the_svd_doctor 4y ago
The routing number of each bank is public :-)
103.
by the_svd_doctor 4y ago
Just because no one cares does not mean it's allowed. Try going through the US border on a B1 (tourist) VISA (or visa-exempt) and mentioning that you're staying 90 days to work for your <other country> company. I doubt that
104.
by the_svd_doctor 4y ago
Well that particular NASA code is from the 90’s and in Fortran. Maybe with MPI. That’s probably part of the reason why.
105.
by the_svd_doctor 5y ago
I have a "MacBook Pro (13-inch, M1, 2020)" and I clearly can't have 2 external monitors. I tried everything.
106.
by the_svd_doctor 5y ago
Given that it's not a new mechanism and the amount of money involved, I assume if it wasn't legal this would have been sued into oblivion already.
107.
by the_svd_doctor 5y ago
Same. If I own 10% of a company, how can the board just decide through some mechanism that I now really own like 8% ?
108.
by the_svd_doctor 5y ago
Math for the sake of math can be very self fulfilling. Like an intellectual hobby (it just takes a lot of work and energy).
109.
by the_svd_doctor 5y ago
Gosh the wysiwyg editor is so, so, so bad. I still can’t believe it’s so bad.
110.
by the_svd_doctor 5y ago
Thanks so much for rclone. Awesome piece of software.
111.
by the_svd_doctor 5y ago
One has shape (N, 1) and one has shape (N). Always having a trailing 1 is a pain in many settings. Matlab has that “trailing 1” all the time and it’s a PITA.
112.
by the_svd_doctor 5y ago
DOB is often just to make sure they have the right person, and not an alias. But yeah, SSN, I wouldn't give it out like this.
113.
by the_svd_doctor 5y ago
FDIC protects against bank failures (like the bank goes bankrupts and looses all the deposited money). It has nothing to do with unauthorized transactions as far as I know.
114.
by the_svd_doctor 5y ago
Same experience. Beefy machine, takes 45 minutes to compile cmake using a ppc64le container on an x86_64 host.
115.
by the_svd_doctor 5y ago
Hearth-breaking. All the love to you and your family.
116.
by the_svd_doctor 5y ago
No. I use vaultwarden without any email at all.
117.
by the_svd_doctor 5y ago
Don’t transactions (should) show up in your online account pretty much instant? I thought they did for me. I also hate fastrack and the “fast lanes”. Only good thing is they send you the transponder pretty much for free :)
118.
by the_svd_doctor 5y ago
_county_ lines? How far does it go?
119.
by the_svd_doctor 5y ago
It's really both. Lots of French people living in Portugal 183 days and in France 182 days.
120.
by the_svd_doctor 5y ago
Yes but git-blame shows 17 years ago.

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