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
<galois>
title: Peter Laursen on Twitter: "So why can you sometimes see a #galaxy behind another galaxy, when you can't see a #pancake behind another pancake? Galaxies are made mostly of #hydrogen which usually in invisible to visible light. But pancakes are made primarily of starch, which absorbs strongly in the optical.… https://t.co/rGKUEnlN9I"
<galois>
title: Fermat's Library on Twitter: "Happy π day!π=3️⃣,1⃣4️⃣15926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712⃣0⃣1⃣9⃣"
<egg|laptop|egg>
!u ḭ̈
<galois>
ḭ: U+1e2d LATIN SMALL LETTER I WITH TILDE BELOW
<galois>
̈: U+0308 COMBINING DIAERESIS
<UmbralRaptop>
Is that a four vector written in turkish?
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<egg|laptop|egg>
!seen bofh
<galois>
egg|laptop|egg: I last saw bofh at 2019-03-13 - 20:37:50 in here, saying like I want to make some sort of bad "Quantum Brexit" joke right now but I'm just exhausted with all this crap.
<egg|laptop|egg>
bofh: I wonder how I should compute the velocities from position-only SP3 files
<egg|laptop|egg>
bofh: is there anything obviously wrong with a scheme where I use central finite differences on 2p+1 points, or non-central ones (but still of the same order and based on 2p+1 points) for the first p or last p points?
<egg|laptop|egg>
e.g., for p=2, v(0) = v_forward(q(0), q(1), q(2), q(3), q(4)), v(1) = v_forwardish(q(0), q(1), q(2), q(3), q(4)), v(2) = v_central(q(0), q(1), q(2), q(3), q(4)), v(3) = v_central(q(1), q(2), q(3), q(4), q(5)), v(4) = v_central(q(2), q(3), q(4), q(5), q(6)), etc. until the end when it goes central, backwardish, backward
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* UmbralRaptop
ponders
<UmbralRaptop>
Happy Type II cake day!
<bofh>
egg|cell|egg: literally I was going to suggest central finite difference, lol.