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
<B787_300> bofh: why you looking at white tio2
<bofh> B787_300: raisins
<B787_300> ?
<B787_300> what do dried grapes have to do with this
<bofh> reasons
<SnoopJeDi> raisin d'être
<bofh> *snicker*
<B787_300> what
<SnoopJeDi> games with homophones
<SnoopJeDi> well, not approxiphones
<B787_300> well i dont know french which might complicate things
<SnoopJeDi> raison d'être means "reason for being"
<SnoopJeDi> so it's semantically not far from bofh's actual answer of "reasons," in addition to another play on "raisin" :P
<bofh> SnoopJeDi: rofl so in another IRC channel egg linked https://esper.irclog.whitequark.org/kspacademia/2018-10-05#1538749251-1538747014; and I am suddenly reminded of the fact tht I used another one of my eggscuses to visit Lyon recently (I still have several hundred,)
<bofh> :p
<SnoopJeDi> it's a great place!
* egg gives B787_300 a meaningful historical grape
<B787_300> bofh: i cant access that page
<SnoopJeDi> omg that hat
<bofh> SnoopJeDi: I did show you http://138.68.64.246/Ambiance_et_Lumieres.jpg ?
<SnoopJeDi> I don't think so!
<SnoopJeDi> Eggstremely appropriate
<bofh> SnoopJeDi: I like just how many aspects of my personality that picture summarizes
<bofh> 3AM selfie on the Croix-Rousse plateau in front of a literal lighting shop while wearing a hat with lämps on it.
<SnoopJeDi> needs more numerics :P
<bofh> yes yes I know, rootn
* bofh hears the disembodied voice of egg in the distance, waving a flyswatter around
<bofh> also have the moon, earthshine and Saturn: http://138.68.64.246/IMG_4869.JPG
<egg> bofh: a hand reaches out of the clouds, waving a flyswatter, and pokes you
<kmath> <michael_nielsen> The determinant of a matrix is how much the matrix expands or contracts space. More precisely: it's the volume of t… https://t.co/sunLccVjlD
<UmbralRaptop> Why couldn't someone have told me that 10 or 15 years ago?
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<B787_300> wait what
<egg> UmbralRaptop: well, it's that * orientation
<egg> UmbralRaptop: because contracting space by a factor of -1 is a rather weird concept
<egg> UmbralRaptop: with a determinant of -1, you are volume preserving but orientation-flipping
<egg> UmbralRaptop: this becomes clear if you try to generalize to something that's not an endomorphism; for homomorphisms of inner product spaces that are not equipped with an orientation, you don't have a determinant, only the absolute value of the determinant
* egg pokes bofh in the cats
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<kmath> <hdevalence> i’m trying to use the realistic orbital dynamics mod for kerbal, except the binary didn’t work properly and now i’m… https://t.co/8RnDgh22MN
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<egg> rqou: probably
<egg> rqou: who is this person? they seem to be followed by many
<_whitenotifier-6f89> [Principia] pleroy closed pull request #2028: An encoder for base 64 - https://git.io/fpNqZ
<_whitenotifier-6f89> [Principia] pleroy pushed 7 commits to master [+6/-0/±21] https://git.io/fpNui
<_whitenotifier-6f89> [Principia] pleroy 39cd8ba - Base 64 implementation.
<_whitenotifier-6f89> [Principia] pleroy 33ba500 - A test.
<_whitenotifier-6f89> [Principia] pleroy 7be3931 - Benchmark.
<_whitenotifier-6f89> [Principia] ... and 4 more commits.
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<_whitenotifier-6f89> [Principia] pleroy opened pull request #2029: Use the base64 encoder - https://git.io/fpN2y
<_whitenotifier-6f89> [Principia] pleroy labeled pull request #2029: Use the base64 encoder - https://git.io/fpN2y
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<_whitenotifier-6f89> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3341/
<_whitenotifier-6f89> [Principia] pleroy synchronize pull request #2029: Use the base64 encoder - https://git.io/fpN2y
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<_whitenotifier-6f89> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3342/
<kmath> <WRBdB> Silver #chemistree Copper in silver nitrate. 10 minutes in 2 seconds. #MerryChristmas https://t.co/NDRsIIRcP5
<_whitenotifier-6f89> [Principia] eggrobin reviewed pull request #2029 commit - https://git.io/fpNKf
<_whitenotifier-6f89> [Principia] eggrobin reviewed pull request #2029 commit - https://git.io/fpNKJ
<kmath> <stephentyrone> @rygorous If you’re really lucky, they explicitly acknowledge that they’re using an approximation. I’m pretty sure… https://t.co/s4q9Ho6Tgx
<_whitenotifier-6f89> [Principia] pleroy reviewed pull request #2029 commit - https://git.io/fpNK5
* UmbralRaptop gestures at the definition of the parsec as 648000/π au.
<_whitenotifier-6f89> [Principia] pleroy synchronize pull request #2029: Use the base64 encoder - https://git.io/fpN2y
<_whitenotifier-6f89> [Principia] eggrobin labeled pull request #2029: Use the base64 encoder - https://git.io/fpN2y
<_whitenotifier-6f89> [Principia] pleroy edited pull request #2029: Use the base64 encoder - https://git.io/fpN2y
<_whitenotifier-6f89> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3343/
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<_whitenotifier-6f89> [Principia] pleroy closed pull request #2029: Use the base64 encoder - https://git.io/fpN2y
<_whitenotifier-6f89> [Principia] pleroy pushed 5 commits to master [+0/-0/±16] https://git.io/fpNiq
<_whitenotifier-6f89> [Principia] pleroy d81fd68 - Plumbing to propagate the encoder all the way to the adapter.
<_whitenotifier-6f89> [Principia] pleroy 2410fc9 - Set the compression and encoding at the right place.
<_whitenotifier-6f89> [Principia] pleroy 44a0f63 - Set compression and encoding on load.
<_whitenotifier-6f89> [Principia] ... and 2 more commits.
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<kmath> <rygorous> @stephentyrone also you can spot theoretical physicists by how they use small-angle approximations for trig functio… https://t.co/tQz9VCE1B4
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<egg> bofh: catpics
* egg pokes bofh with cats and papers
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<_whitenotifier-6f89> [Principia] aszkid starred Principia - https://git.io/fpNyq
<egg> Ellied: huh, someone at UChicago starred principia ^
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* UmbralRaptop assumes that http://www.nasa.gov/press-release/nasa-awards-optical-telescope-assembly-for-wide-field-infrared-survey-telescope means that WFIRST is likely to eventually launch.
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<kmath> <Rainmaker1973b> A beautiful and creepy artificial Sun is visible in this forgotten footage of the British nuclear tests for Project… https://t.co/GW0QoUdI2F
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<UmbralRaptop> ;8ball Am I going to have to redo a selection criterion for one observation set, the fitting parameters for that and another, and then find a way to rapidly rerun both?
<kmath> UmbralRaptop: Don't count on it
<UmbralRaptop> D:
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<bofh> egg: chat
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<kmath> <bofh453> Bröther, may I have some öörts? https://t.co/joSl1ronm2
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<kmath> <inform_dreams> Understand "help" as summoning help. Summoning help is an action applying to nothing.
<bofh> accuarate.
<egg> also UmbralRaptop ^
<egg> also lɒl it's cohen and hubbard, pretty sure i've seen those two already on a completely unrelated topic in principia
<egg> help i am becoming weirdly familiar with sets of authors in astronomy
<UmbralRaptop> shiny
<bofh> rofl
<egg> bofh: but, like, singularity-free elements that are reasonably nicely related to the classical ones??
<egg> could I use that to make the KeplerOrbit code semisane
<egg> (once it is semisane i can remedy to that by adding Delaunay elements)
<bofh> LOL
<bofh> I haven't heard of Delaunay elements in ages, wow.
<egg> bofh: i came across them today
<egg> clearly you need to do more astrodynamics,
<egg> next time you come to ANBO maybe we can actually do numerics and astrophysics instead of sorting your papers :-p
<bofh> good idea
<bofh> admittedly that trip was made worse by eggsperiencing harddrive failure on the train to ANBO
<UmbralRaptop> aaaaaaaaa
<egg> bofh: also it turned out that the answer to the question to which you had tried to answer "yes" for six months was given by dekker as "no" :-p
<egg> bofh: speaking of which, what was the subsequent question i had ended up asking you?
<egg> i tihnk you wrote it down somewhere
<bofh> egg: what can be said about double-double on itsself *at all* wrt. precision and rouding behaviour, assuming *no* additional bits or funkiness.
<egg> bofh: double-double as in DoublePrecision<DoublePrecision<SomeIEEE754FloatingPointType>>?
<egg> e.g. doubledoubledouble if you call binary64 double *shakes fist at C*
<egg> s/e.g./i.e./ i am not awake
<bofh> yes
<bofh> wait, is there a distinction between e.g. and i.e.?
<bofh> I just thought the latter was latin for the former?
<UmbralRaptop> e.g. ~ for example; i.e. ~ in other words
<UmbralRaptop> ie being more specific
<egg> bofh: they're both latin
<egg> and they have different meanings
<egg> bofh: exempli gratia vs. id est
<egg> for the sake of example vs. that is
<egg> not interchangeable
<bofh> ahh. right. id est is just that is
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