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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* egg|cell|egg
stabs the lack of polar scope illuminator
* UmbralRaptop
suggests tritium paint?
<egg|cell|egg>
Yes but I should have one
<egg|cell|egg>
Where is it
<egg|cell|egg>
Stabbity
* UmbralRaptop
cannot help search; there's an ocean in the way.
* egg|cell|egg
stabs the ocean
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* egg|anbo|egg
stabs the universe
<mlbaker>
would the real charles barkley please stand up
<UmbralRaptop>
Happy birthday, Isaac Newton?
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<bofh>
egg|cell|egg: no idée, iirc it was installed in the scope?
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<UmbralRaptop>
;8ball Did Santa collide with a brilliant pebble?
<kmath>
<bofh453> Oh, anyone want to hear me singing Adeste, Fideles really dodgily? I know the answer is "no", but I'll link http://… https://t.co/GQbxzBMyna
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<whitequark>
egg|cell|egg: yes for a while
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* egg|anbo|egg
scritches whitequark
<egg|anbo|egg>
bofh: well it's not there :-/
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<bofh>
egg|anbo|egg: like I have no idea, I don't think we used it last time b/c we were in a hurry iirc?
<bofh>
and last time I was pretty sure you left it in the 'scope
<bofh>
`inline' is homeopathic in a lot of contexts, esp. under C99/C++ rules
<bofh>
like, you prolly actually want __forceinline
<egg|anbo|egg>
yes
<egg|anbo|egg>
one of the thing is forceinlined
<egg|anbo|egg>
but the DegreeNAllOrders and AllDegrees computations were inline
<egg|anbo|egg>
not forceinline
<egg|anbo|egg>
but maybe that inline nudges the compiler in a direction that takes moar time to compile?
<bofh>
Oh, yeah, that is *very* likely
<bofh>
Well, it depends on `inline' heuristics in MSVC, of which I have no clue as to details.
<egg|anbo|egg>
(it's an inline on a static member function of a templatized class, so semantically it does nothing; so either it has no effect or it makes compile times quadratic or cubic or whatever)
<egg|anbo|egg>
bofh: so yeah in that pdf it starts talking about singularity removal towards the end
<bofh>
oh, wait, *that's* what cos^m(x) simplifies to?!
<bofh>
that seems unusually nice and simple???
<egg|anbo|egg>
?
<egg|anbo|egg>
oh you mean in the implementation considerations?
<bofh>
"The value of cos β may be computed by recurrence with a relative error growing
<bofh>
like O ( m ) ."
<bofh>
yeah
<bofh>
like that's a pretty simple recurrence and actually would simplify something in a compchem package I wrote years ago and I'm curious how you clued into it. :P
<egg|anbo|egg>
you mean for the m even or the other case
<egg|anbo|egg>
also ask phl he wrote that mostly
<egg|anbo|egg>
he also found the austrian pdf with the legendre recurrences
<bofh>
for both :P
<bofh>
Yeah that Austrian PDF is nice.
<egg|anbo|egg>
for cos^m β??? that's, like, just russian peasant?
<egg|anbo|egg>
the other one is more interesting but that's чебышёв
<egg|anbo|egg>
bofh: russian peasant doesn't need much cluing, i'm confused
<egg|anbo|egg>
what is your question eggsactly
<bofh>
Oh. Huh. So it is?
<bofh>
...I just never realized that >_< Sorry
* egg|anbo|egg
pets bofh with a russian peasant
<bofh>
I feel like I knew at least a few of those distantly once. :P
<egg|anbo|egg>
bofh: i mean, it doesn't show up in trig identities tables, because it's not trig-related at all :-p
<bofh>
Like that is exactly my surprise. I normally pull these out of tables (literally, wp:List of Trigonometric Identities was my most-visited page for years until I finally generated a PDF of it and that's basically always open on some workspace now) and I've somehow *never* come across that.
<bofh>
b/c I guess yeah.
<egg|anbo|egg>
bofh: clearly you just need a list of identities
<egg|anbo|egg>
bofh: perhaps you could print them out and bind them
<egg|anbo|egg>
bofh: in some handheld form, a handbook as it were
<bofh>
I'm pretty sure I'd wind up with something much, much thicker and heavier than Градштейн и Рыжик if I tried that.
<kmath>
<AlanStern> BREAKING…Signal has just been received at mission control, New Horizons has successfully started its flyby program… https://t.co/FHtaHT9NL1
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<bofh>
UmbralRaptop: surprisingly, I do not.
<bofh>
I *almost* bought some LED cat ears in Lyon but they didn't quite fit my head so I got the LED garland instead, which... tbh I am eggstremely happy about.
<UmbralRaptop>
ah
<egg|laptop|egg>
bofh: you left an led garland here btw
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<egg|anbo|egg>
bofh: okay so
<bofh>
?
<egg|anbo|egg>
bofh: maybe 10 min of excess compile time were from inlining 50 ** 2 calls
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<bofh>
yeah, leaving the LED garland there was intentional, it was 4EUR lol.
<bofh>
also, uhhhh
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<bofh>
that's a lot of calls
<egg|anbo|egg>
bofh: but making them non-inlined calls to 50 ** 2 functions vs. a handful only adds a couple minutes to the build, at most O_O
<egg|anbo|egg>
(probably 50 * 51 / 2 or 50 * 49 / 2 or a bit less, whatever)
<bofh>
whaaaaaaaaaat
<egg|anbo|egg>
compilers are magic
<egg|anbo|egg>
bofh: also upgrading jenkins cost me 4 min of build time, investigating why