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
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<_whitenotifier-7258> [Principia] eggrobin edited pull request #2089: An interface that can actually be called - https://git.io/fhhqf
<_whitenotifier-7258> [Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
<_whitenotifier-7258> [Principia] eggrobin labeled pull request #2087: Better semantics for AttachFork - https://git.io/fhhee
<_whitenotifier-7258> [Principia] pleroy reviewed pull request #2089 commit - https://git.io/fhhBc
<_whitenotifier-7258> [Principia] pleroy reviewed pull request #2089 commit - https://git.io/fhhBC
<_whitenotifier-7258> [Principia] pleroy reviewed pull request #2089 commit - https://git.io/fhhBW
<_whitenotifier-7258> [Principia] pleroy reviewed pull request #2089 commit - https://git.io/fhhBl
<_whitenotifier-7258> [Principia] pleroy reviewed pull request #2089 commit - https://git.io/fhhB8
<_whitenotifier-7258> [Principia] pleroy labeled pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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<_whitenotifier-7258> [Principia] pleroy synchronize pull request #2087: Better semantics for AttachFork - https://git.io/fhhee
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<_whitenotifier-7258> [Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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<_whitenotifier-7258> [Principia] eggrobin closed pull request #2087: Better semantics for AttachFork - https://git.io/fhhee
<_whitenotifier-7258> [Principia] eggrobin pushed 5 commits to master [+0/-0/±23] https://git.io/fhhBD
<_whitenotifier-7258> [Principia] pleroy 549f1b2 - Change the semantics of AttachFork to work better for predictions and prognostication.
<_whitenotifier-7258> [Principia] pleroy 93fc61d - Merge remote-tracking branch 'mockingbirdnest/master' into AttachFork
<_whitenotifier-7258> [Principia] pleroy 2a08f01 - After egg's review.
<_whitenotifier-7258> [Principia] ... and 2 more commits.
<_whitenotifier-7258> [Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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<_whitenotifier-7258> [Principia] pleroy synchronize pull request #2088: Make the Ephemeris fully thread-safe and improve error reporting - https://git.io/fhhvW
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<_whitenotifier-7258> [Principia] pleroy synchronize pull request #2088: Make the Ephemeris fully thread-safe and improve error reporting - https://git.io/fhhvW
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<egg|zzz|egg> Sarbian: what does the renaming of ModuleManager.dll to ModuleManager.version.dll? is it just your jenkins?
<_whitenotifier-7258> [Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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<_whitenotifier-7258> [Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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<egg|cell|egg> CHAMP?
<egg|cell|egg> GRACE?
<egg|cell|egg> GOCE?
<egg|cell|egg> !acr -add:CHAMP CHAllenging Minisatellite Payload
<galois> Definition added!
<egg|cell|egg> !acr -add:GRACE Gravity Recovery And Climate Experiment
<galois> Definition added!
<egg|cell|egg> !acr -add:GOCE Gravity field and steady-state Ocean Circulation Explorer
<galois> Definition added!
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<egg|cell|egg> Bofh: i wonder whether you would like margaritas, what with the salt
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<UmbralRaptop> something something pickles
<egg|cell|egg> Meow
* UmbralRaptop scritches egg|cell|egg
<egg|cell|egg> 喵
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<egg|zzz|egg> Sarbian: miaou
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<egg|zzz|egg> UmbralRaptop: I think Russel uses that funny notation for differences in magnitude only, rather than for magnitudes?
* UmbralRaptop checks
* UmbralRaptop o_O
<egg|zzz|egg> UmbralRaptop: see p. 348
<egg|zzz|egg> s/348/331/
<galois> egg|zzz|egg meant to say: UmbralRaptop: see p. 331
<egg|zzz|egg> s/331/338/
<galois> egg|zzz|egg meant to say: UmbralRaptop: see p. 338
<egg|zzz|egg> i'll get the page number right eventually
<UmbralRaptop> I mean, yeah, he is. Hence my o_O
<egg|zzz|egg> hah
<UmbralRaptop> eventually correct pagination
<galois> title: Robin Leroy: "@Newpa_Hasai re. Hertzsprung, I can see http://ad…" - Mastodon
<UmbralRaptop> Maybe it's only open access in the EU?
<egg|zzz|egg> UmbralRaptop: I'm in VN
<UmbralRaptop> ¯\_(ツ)_/¯
<egg|zzz|egg> UmbralRaptop: by remote desktop it works in CH too
<egg|zzz|egg> UmbralRaptop: maybe it's only cursed in the US?
<UmbralRaptop> ah, *send pdf*
<egg|zzz|egg> yeah
<UmbralRaptop> Okay, OA status depends on chosen link
<egg|zzz|egg> yeah
<egg|zzz|egg> UmbralRaptop: also angles (including RA in hours, minutes, and decimal minutes!) https://twitter.com/eggleroy/status/1104421001780125696
<galois> title: Robin Leroy on Twitter: "Both it and Hertzsprung (1909), Über die Sterne der Unterabteilungen 𝑐 und 𝑎𝑐 nach der Spektralklassifikation von Antonia C. Maury, use IAU style for sexagesimal units; “.” under the unit in Hertzsprung, after it in Russel: https://t.co/GEmfMxyDOs, https://t.co/uSRSwnGg76.… https://t.co/mo01N7e7SC"
<egg|zzz|egg> UmbralRaptop: generally, angle thread
<UmbralRaptop> notation is confusing
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* egg|zzz|egg meows at bofh
<egg|zzz|egg> UmbralRaptor: the sign is a fun unit https://twitter.com/eggleroy/status/1102959215126110208
<galois> title: Robin Leroy on Twitter: "Kepler (1609), Astronomia nova αιτιολογητος seu physica coelestis. The units are set above the number, and the numbers separated by full stops.Note the use of signs, degrees, minutes, and seconds for longitudes (1 sign = 30°).Other angles are in degrees, minutes, and seconds.… https://t.co/Z7WPdj7gdz"
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<egg|zzz|egg> but there's the sign of mean longitude which is written as an angle unit and the actual sign which is written *after* the angle https://twitter.com/eggleroy/status/1102965525624193025
<galois> title: Robin Leroy on Twitter: "Specifically, mean longitudes are written that way; observations are given as degrees, minutes, and seconds, followed by the sign; the first calculation in this table is 0°. 50′. 56″ ♎︎ − 28°. 44′.  0″ ♌︎ = 32°.  6′. 56″.… https://t.co/9JXcEPaoe5"
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* bofh meows at egg|zzz|egg
<egg|zzz|egg> meow!
<bofh> egg|zzz|egg: possibly, given how much V8 I've been known to drink
<bofh> (the vegetable juice, not the javascript engine or the internal combustion engine configuration)
<egg|zzz|egg> bofh: so re. Π, have you heard of Carlson?
<bofh> as in Fritz Carlson or Lennart Carlson or?
<egg|zzz|egg> elliptic integrals carlson
<bofh> Oh. Yes of course, Carlson Normal Form is the only sane way to evaluate elliptic integrals
<bofh> (okay AM-GM works well for K(k) but that's really it)
<egg|zzz|egg> matrices and one with quaternions, which both use the elliptic integral of the third kind. To compute this function we consider two strategies. One is exact, that is, computes the required functions to machine precision using the well known method of Carlson [26]. The other, that we call semi-exact, uses Gaussian quadrature of arbitrarily high order and produces high order approximations of the solution of the free
<egg|zzz|egg> rigid body. At the price of making the error in the evaluation of the integral depending on the step–size of integration, this allows a reduction of the computational cost by a factor 2/3.
<egg|zzz|egg> from norway.pdf
<egg|zzz|egg> (why is it called norway)
<galois> title: Dipartimento di Matematica - UniPD
<bofh> LOL norway.pdf
<bofh> I mean you can do most things with Gaussian quadrature, lol. I'm amazed it's more computationally efficient in this case.
<galois> title: DLMF: Bille C. Carlson
<egg|zzz|egg> > The foregoing matters are discussed in Carlson’s book Special Functions of Applied Mathematics, published by Academic Press in 1977. In 2004 he found a previously hidden symmetry in relations between Jacobian elliptic functions, which can now take a form that remains valid when the letters c, d, and n are permuted.
<egg|zzz|egg> 30 years of staring at elliptic integrals Ꙩ_ꙩ
<bofh> egg|zzz|egg: I mean give me another 25 years and I'll have stared at Bessel Functions for that long,
<bofh> (hopefully I'll find something similarly useful, tho I honestly doubt it)
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* UmbralRaptop pokes ergs with le grande K
<egg|zzz|egg> UmbralRaptop: s/de/d/
<galois> egg|zzz|egg thinks UmbralRaptop meant to say: pokes ergs with le grand K
<UmbralRaptop> right
<egg|zzz|egg> UmbralRaptop: kg is masculine, like m, A, K; s, mol, cd are feminine
<UmbralRaptop> aaaaaaa
<egg|zzz|egg> UmbralRaptop: I think most of the named SI derived units are masculine
<egg|zzz|egg> UmbralRaptop: otoh the barye, dyne, and poise are feminine
<bofh> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
<bofh> also what the shit is the barye?
<egg|zzz|egg> bofh: Ba, dyn, P are cgs units
<galois> title: Paname Paris 170k on Twitter: "Parc des Buttes Chaumont Paris… "
<egg|zzz|egg> of pressure, force, and viscosity, as the name indicates
<bofh> egg|zzz|egg: that's odd, I swear I've never used Ba or P
<bofh> ...okay that would eggsplain why, lol.
<egg|zzz|egg> I think the centipoise is still sort of a thing
<bofh> (okay I may have used Ba once, having vague memories. Definetly never used P but I don't do fluid mechanics at all).
* egg|zzz|egg summons a ferram4
<egg|zzz|egg> bofh: also somehow geodesists love the milligal
<egg|zzz|egg> (Gal is masculine obviously)
<bofh> I mean I also think I've used Ba at least once, in the sulfate salt for green in pyrotechnics
<bofh> (obviously :P)
<UmbralRaptop> obviously
<bofh> egg|zzz|egg: also this makes me putting U+33FF into gender fields even more hilarious
<egg|zzz|egg> oh also the pound is feminine
<bofh> (...actually come to think of it, "gender: <insert stupid joke here>" is pretty on brand for me. as is "gender: deprecated Unicode compatibility character")
<egg|zzz|egg> hm, but that's a lowercase g, so probably gallons rather than gals
<egg|zzz|egg> yes, the gal, symbol Gal
<egg|zzz|egg> bofh: anyway gallons are masculine too
<bofh> yes hence "bad joke" :p
<egg|zzz|egg> bofh: norway.pdf is nice
<egg|zzz|egg> aside from the weird filename
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<egg|zzz|egg> bofh: I guess the filename has something to do with Niklas Säfström, the other three authors being italian
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<bofh> egg|zzz|egg: I wonder if any of the authors has a corresponding italy.pdf
<egg|zzz|egg> maybe Säfström
<UmbralRaptor> I feel like the correct response to a norway.pdf is kenya.pdf
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<galois> title: Peter Barfuss 𒀱 on Twitter: "(The dividing line between these two outcomes is shockingly thin; the fact that "OOH COOL SHINY" is far, *far* stronger for me than "I already have Optimally Knapsack'd My Schedule, I *literally* cannot add anything more to it" doesn't help one bit).… https://t.co/KWmVskj34Y"
<galois> title: Amusement BIGNET
<bofh> oops wrong window