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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[Principia] eggrobin edited pull request #2089: An interface that can actually be called - https://git.io/fhhqf
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[Principia] eggrobin synchronize pull request #2089: An interface that can actually be called - https://git.io/fhhqf
<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"
<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"
<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>
> 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,
<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"