UmbralRaptor 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
<egg|laptop|egg> yeah the partial trace gives something mildly annoying, but if you contract the indices diagonally (i with l or j with k) you get twice the original endomorphism, so that's nice
<egg|laptop|egg> !u ∧
<galois> ∧: U+2227 LOGICAL AND
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<mofh> egg|laptop|egg: wait, half trace?
<egg|laptop|egg> mofh: half the trace of the thing seen as an endomorphism of the n(n-1)/2 vector space, it's not actually that nice now that I think of it
<egg|laptop|egg> mofh: but it's the contraction Sᵏʲⱼₙ that's nice
<egg|laptop|egg> mofh: since if you do that contraction on a^i_k δ^j_l + a^j_l δ^i_k you get 2a
<egg|laptop|egg> mofh: not sure whether that contraction has a name
<egg|laptop|egg> it's the one that's not the partial trace :-p
<mofh> ohhhhhh.
<mofh> right, that thing.
* egg|laptop|egg nibbles on mofh
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<mofh> win 13
<UmbralRaptop> Ah, you're future mofh
<mofh> ??
<SnoopJeDi> windows 13
<mofh> ahh
<galois> title: ⚪ Katsune: "Chemistry shitpost(?)" - Computer Fairies
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<egg> UmbralRaptop: or maybe it's like win32, and somehow mofh is using an architecture with 13-bit bytes?
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<UmbralRaptop> aaaaa
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* egg meows at whitequark
<whitequark> hi
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* UmbralRaptop 🔪 UmbralRaptop in the motivation
* egg rubs cheeks against UmbralRaptop's laptop
<egg> whitequark: https://twitter.com/whitequark/status/1218279345564811266 does it contain dish soap
<galois> title: whitequark on Twitter: "Ubuntu Mir as an example of nominative determinism"
* UmbralRaptop scritches egg
<UmbralRaptop> whitequark: FLOSS spacestation?
<_whitenotifier-d13c> [Principia] eggrobin opened pull request #2451: Tensor contraction - https://git.io/JvTdi
<egg> !u ⊗
<galois> ⊗: U+2297 CIRCLED TIMES
<egg> !u Λ
<galois> Λ: U+039b GREEK CAPITAL LETTER LAMDA
<egg> !u ⋀
<galois> ⋀: U+22c0 N-ARY LOGICAL AND
<_whitenotifier-d13c> [Principia] eggrobin synchronize pull request #2451: Tensor contraction - https://git.io/JvTdi
<SnoopJeDi> n-ary in the coal mine
<_whitenotifier-d13c> [Principia] eggrobin synchronize pull request #2451: Tensor contraction - https://git.io/JvTdi
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4096/
<_whitenotifier-d13c> [Principia] Failure. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4096/
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