raptop changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer. | We can haz pdf
<egg|laptop|egg_>
so a bunch of cases of "NMaximize just picked the wrong maximum", and some cases where NMaximize didn't finish maximizing
<bofh>
I'm kinda weirded out by the second of those.
<bofh>
Wrong maximum is a semi-common failure mode but the latter is odd, esp. if you're dealing with things as nice and smooth as polynomials
<egg|laptop|egg_>
bofh: yes
<egg|laptop|egg_>
bofh: maybe i didn't set my options right and something was in machine precision instead of 100-something-sigdec precision, confusing things?
<bofh>
yeah, that would certainly do it.
<egg|laptop|egg_>
bofh: it's also infinitely faster to Bront those derivatives than to NMaximize on the same interval anyway
<egg|laptop|egg_>
also i should remember to take some cat with paper pics
<egg|laptop|egg_>
i even brought a lot of papers
<bofh>
I should do the same, given I finally got the printer working
<UmbralRaptor>
You can test to see if different cats prefer different papers.
<egg|laptop|egg_>
UmbralRaptor: bofh: maybe train a cat to predict the outcome of peer review, write a paper about it, and see what the cat thinks,
<egg|laptop|egg_>
bofh: meanwhile boats are boating by in the thick fog
<kmath>
<✔Alex_Parker> "We are seeing an offset of 10 milliradians between the planned orbital insertion and our current trajectory." ⏎ ⏎ "Wa… https://t.co/xSxG79ExzJ
<egg|laptop|egg_>
[insert principia madness here]
<UmbralRaptor>
At least typical SF ships have oodles of ΔV.
<egg|laptop|egg_>
UmbralRaptor: okay but with that comes different fun
<egg|laptop|egg_>
UmbralRaptor: [insert 10-hour lectures about relativistic timescales and reference systems in fundamental astronomy]
<egg|laptop|egg_>
or,
<egg|laptop|egg_>
"are you using the TDB-compatible or the TT-compatible values"
<egg|laptop|egg_>
(or TCG or TCB but these mistakes would yield obvious wrongness, TT vs. TDB is confusing)
<UmbralRaptor>
egg|laptop|egg_: so, I saw a paper recently that radial velocities are getting to the point that we need better relativistic corrections.
<kmath>
<whitequark> there's a fan in the wall near the light switch. if I turn the fan on, precisely one ceiling lamp also turns on. th… https://t.co/9Ahlpfw25J
<SnoopJeDi>
eggstremely cursed wiring
<egg|anbo|egg>
i mean the phase 1 = phase 2 at ANBO was fun too
<kmath>
<bofh453> <@eggleroy> pair production in a 3-phase electrical installation, https://t.co/oA0ODFMJHH
<SnoopJeDi>
I was talking to my gf's dad about wiring over the holiday. Mostly about how my parents live in a neighborhood that was pretty much all shoddy aluminum wiring because it was economical at the time.
<SnoopJeDi>
ha! I'd be lying if I said I understood polyphase, but I grok it just enough for that joke
<_whitenotifier-6f89>
[Principia] eggrobin synchronize pull request #2032: Selenopotential to degree and order 50 - https://git.io/fhvro
<xShadowx>
so have position a b c for 3 points in 3d space, d e for their coordinate in 2d space, f g h for their rotation, then have x y for a 4th 2d point, that needs to be converted to a 3d point along the curved surface created by the first 3 points :|
* xShadowx
has a headache
<SnoopJeDi>
yea, they're javascripty so it's a little demanding
<_whitenotifier-6f89>
[Principia] pleroy synchronize pull request #2042: An allocator based on arenas - https://git.io/fhI8h
<egg|anbo|egg>
UmbralRaptor: something is foghorning
egg|laptop|egg has joined #kspacademia
<UmbralRaptor>
High visibility cows.
<egg|anbo|egg>
foghorning *a lot* actually
<egg|anbo|egg>
admittedly the fog is quite thick, i can't see the lighthouses across the river and the sky is shining orange upward of 60 deg from nearby street lamps
<egg|anbo|egg>
still that's a lot of honking
<egg|laptop|egg>
now it's stopped honking but i hear the engine
<egg|laptop|egg>
and a lamp hovering through the fogge and filthie ayre
<kmath>
<✔Alex_Parker> As we approach our new target in the Kuiper Belt, here’s a brief look back at where we’ve been. This is every singl… https://t.co/tHxk9q6Fi2