egg|nomz|egg 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.
<SilverFox>
so I was talking with an engineer today
<SilverFox>
and I'm not good at maths, but he was all up in that matlab stuff after I showed him the glory of ternaries
<SilverFox>
and we got into matrix ops, and I'm curious if C,C++, C# has the things that matlab does for the matrix ops that matlab has
<SilverFox>
and that unity's Vector3 * Vector3 isn't a matrix multiplication, but like an addition or some shit idk?
<UmbralRaptor>
The C-like languages probably have relevant libraries *eyes the floating point cat*, though I'd feel safer saying that they exist in numpy. Also IDL for some reason.
<UmbralRaptor>
Hrm. The actual channel mathematicians seem to be asleep or afk.
<SilverFox>
rip
<SilverFox>
oh, just so I understand properly, a matrix multiplication of A being a 3x3 matrix of all 3's, and B being a matrix of all 2's, this would result in a 1 by 3 matrix of 16's, correct?
<UmbralRaptor>
uh
<egg|anbo|egg>
UmbralRaptor: afk
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<egg|anbo|egg>
UmbralRaptor: i am not asleep but should be, bofh probably eggsists and might still be able to answer questions
<egg|anbo|egg>
i otoh am tired
<SilverFox>
egg needs sleep for grow
<SilverFox>
won't become a pretty butterfly otherwise
<UmbralRaptor>
Probably? ‹bofh|bofh› < 1?
<SilverFox>
if something is 'null' it's treated as if it doesn't exist, correct?
<egg|anbo|egg>
UmbralRaptor: btw lagoon nebula was a good idea and was cute; we also looked at the trifid nebula, not really any visible nebulosity there, though open cluster next to it (Messier whichever)
<UmbralRaptor>
SilverFox: I think there's an unstated assumption about B's dimensions. Also, the addition seems off?
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<UmbralRaptor>
egg|anbo|egg: Yay. fwiw, there's lots of stuff at +dec from there (omega nebula, eagle nebula, wild duck cluster…)
<egg|anbo|egg>
UmbralRaptor: yeah but in bed because tired, also mild clouds
<egg|anbo|egg>
UmbralRaptor: bofh might be able to answer numerics questions
<bofh>
tired: amphetamines as exclusively ADHD medication; wired: using amphetamines to stay up for 4 days in a row for conference; inspired: using amphetamines for Bonus Mydriasis to boost dark adaptation (shockingly it *did* help a bit, not enough to recommend to others just for that purpose tho :P).
* UmbralRaptor
is amused at how egg has both cats sleeping next to eachother.
<bofh>
22:03:22 <@SnoopJeDi> bofh, egg|anbo|egg, if I say to you "random packing of (uniform) spheres in a spherical shell," what's your first optimization intuition?
<egg|anbo|egg>
UmbralRaptor: yes
<UmbralRaptor>
bofh: wait, you can use amphetamines for *dark adaption?*
<egg|anbo|egg>
UmbralRaptor: also bofh is sleeping with one of the cats i think
<SilverFox>
UmbralRaptor, I was told it goes the 333 matrix against 222 is that each 3 is multiplied by the 2, so 6 + 6 + 6, which is 18?
<UmbralRaptor>
Yeah, 18 makes sense. 16 did not.
<egg|anbo|egg>
bofh: also demoscene really sounds like a geologic period
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<bofh>
I mean symphatomimetics cause pupillary dilation (like, ephedrine suffices here), which... yeah. :P
<bofh>
also I have been informed I need to read АГД in the original Russian and... yeah, I really should, in all honesty.
<SnoopJeDi>
bofh, yea, settling things down was my first inclination and the literature seems to be variation on that theme
<SnoopJeDi>
figured I'd ask people smarter than me since I got as curious as I did
<SnoopJeDi>
person's best bet for an actual solution is probably somewhere near "write a binding for [c++ tool]" or pregenerate a bunch of samples and proceed from there"
<SnoopJeDi>
!wpn bofh
* Qboid
gives bofh a roasted classmethod
<SnoopJeDi>
you still traveling?
<bofh>
I mean fair enough, there are prolly still tools.
<kmath>
<✔Dereklowe> If you follow astronomy at all, you will be stunned to learn that this is a *ground-based image* of Neptune. Startl… https://t.co/HQ7DNfNsKG
* awang_
🔪 Excel
<awang_>
How in the world does "286,231.22" become "22-May"
<UmbralRaptor>
"Note 3: EXOFASTv2 has been tried with GDL and does not work. Others have gotten close. If you're interested in making it work with GDL, please contact me."
<UmbralRaptor>
*sob*
* UmbralRaptor
apparently needs an account to download a demo of IDL.
<bofh>
my sincerest condolences
<bofh>
and yep, adaptive optics are magic
<bofh>
relatedly, ANBO needs laser guide cows.
<UmbralRaptor>
Oh, right, the cluster has IDL installed.
<UmbralRaptor>
I can just ssh in and run code there. And yell at people who think this is better than anaconda.
<UmbralRaptor>
(said cluster is running Ubuntu 14.something)
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<e_14159>
UmbralRaptor: Your cluster has things installed? :P
<e_14159>
I am shocked!
<UmbralRaptor>
e_14159: well, my advisor's
<e_14159>
I haven't installed anything on ours
<e_14159>
(I'm very scared of software versioning issues)
* UmbralRaptor
🔪 things
<UmbralRaptor>
So, uh, the test case doesn't work.
<iximeow>
who wants test cases anyway
<iximeow>
bofh: how plausible do you think amateur adaptive optics would be?
<UmbralRaptor>
I suspect quite plausible with the right skills.
<UmbralRaptor>
Lucky imaging and stacking is considerably easier, though.
<iximeow>
fair
<UmbralRaptor>
(Also, note that GPIE and SPHERE are on 8.2 m telescopes. >_>
<UmbralRaptor>
)
<iximeow>
i'll have an 8.2m any day
<iximeow>
,,,, uh,, :(
* UmbralRaptor
recalls estimating that for good skies you're diffraction limited below 20 cm anyway.
* iximeow
counts the number of telescopes at home that are <20cm
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<egg|anbo|egg>
UmbralRaptor: but now the ANBOcat *is* 200 mm
<bofh>
SPHERE?
<Qboid>
bofh: [SPHERE] => Spectro-Polarimetric High-contrast Exoplanet REsearch instrument
<kmath>
<capsule_169> "That's a strange tattoo," she says, catching a rare glimpse of her date's usually covered forehead. ⏎ "That's not th… https://t.co/GbyhRd7RTg
<APlayer>
"sphere" is a common enough word to make me wonder if it makes sense for Qboid to respond with "Spectro-Polarimetric High-contrast Exoplanet REsearch instrument" whenever someone types "sphere?". But apparently it is case sensitive
<UmbralRaptor>
MaDCoWS?
<Qboid>
UmbralRaptor: [MaDCoWS] => Massive and Distant Clusters of WISE Survey
<awang_>
Ah
<awang_>
Just how much time do scientists spend coming up with catchy acronyms?