Viewing profile — jepler

My mind just balks at the idea of having so much source that a 2020s computer could take hours to index it. ctags is nothing special (both in terms of optimization but also the lev…

According to http://comopt.ifi.uni-heidelberg.de/software/TSPLIB95/STSP.h... the optimal solution for eil51 is 426 (the linked page has a tour of 428.87) and the optimal solution f…

I wonder whether you still have a bug. It depends how "scanning" is implemented. 23:55 start scanning 23:59:59 message added 00:00:01 perform timestamp check If there is the possib…

I don't know Haskell, so I can imagine if you didn't know Python it'd be "greek to you" (unintelligible). I'll try explaining in prose what I did. [note: I also edited the grandpar…

assuming you mean the decimal expansion and a length-3 de bruijn sequence on 10 symbols, I am not seeing it. There seem to be many sub-sequences which do not appear. (assuming that…

and it's back now. No incidents reported on status.python.org. there was some discussion on at least two github issues: https://github.com/python/cpython/issues/127307 and https://…

No downtime noted yet at https://status.python.org/ but confirmed from here

Too tired to find the actual debunking of these claims but no, d-wave is not effective for cryptanalysis of RSA or AES as deployed. The papers claim some interesting but not game-c…

Anil is a given first name, maybe just not in your culture.

You don't need machine code these days to find overflow in IEEE floating point arithmetic. If any intermediate sum overflows, you get an infinity. Further arithmetic can never retu…

If you're writing for an audience outside of India you might want to explain what ₹9 lakh equates to, as both the value of ₹1 and the magnitude of the lakh are probably unfamiliar.…

https://www.flightconnections.com/flights-from-iah-to-hav there are direct flights from USA to Cuba these days

It's not clear how you'd do that with current technology. What is the oldest unmaintained working man-made mechanism? I have no idea, but I'd hazard that it's closer to 100 years o…

I'd take recourse to https://en.wikipedia.org/wiki/Bremermann%27s_limit All human thought processes appear to require some irreversible physical processes in order to occur. (not s…

A modest proposal: stop adopting new digraphs like [:, ^^, [[. Unicode has at least 50 sets of pairing punctuation just waiting for use... \N{MEDIUM LEFT-POINTING ANGLE BRACKET ORN…

since this is a 'walled site, you can just have a read of the official release notes and then the related PEPs ... https://docs.python.org/3.13/whatsnew/3.13.html New typing featur…

I was curious how this thing did video. As you might expect, it's done by bit-banging the VGA RGB output pin from an IRQ. A time honored tradition. Here's the code in the Tetris de…

You're right that the hilbert curve only visits certain points in the unit square, and never a (non-rational,non-rational) point. While the Wikipedia article doesn't seem to mentio…

this was my first thought as well. Authors just acknowledge it and move on; it's not like shopify and google care whether there's another way to successfully track users online. 10…

Any meaningful change here since [2017]? I know letsencrypt recently announced intent to cease OCSP ( https://letsencrypt.org/2024/07/23/replacing-ocsp-with-crls.... ) and it sound…

wikipedia has a high level review of current constraints: https://en.wikipedia.org/wiki/Time-variation_of_fundamental_... fine-structure constant: less than 10^−17 per year gravita…

Fringe science here. APEC is "Alternative Propulsion Engineering Conference" so these are the EM drive people, etc. The probability that "this is anything" is low. Now, I have no i…

I had no idea the BF16 format was actually named "brain float". TIL.

This is quite possible, and I'm sure someone's doing it. At $OLD_DAY_JOB I developed a way to byte compile and then encrypt Python byte code for plug-ins, to meet a requirement fro…

bsd/vfs/vfs_vnops.c: if (write_offset == INT64_MAX) { /* writes are not possible */ error = EFBIG; goto error_out; }