Math Dump /sym/7fd97a
id=1 · host=jp.commstar.world · 2026-10-19 19:44Z
∂r/∂φ = 2r
∫₀^∞ e^(-x²) dx = √π / 2
326K
∑_{k=1}^{n} k = n(n+1)/2
198K
e^{i\pi} + 1 = 0
det| 1 4 ; 0 2 | = 2
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
201K
det| 7 4 ; 4 8 | = 40
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∑_{k=1}^{n} k = n(n+1)/2
359K
∑_{k=1}^{n} k = n(n+1)/2
263K
det| 5 2 ; 3 6 | = 24
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det| 7 9 ; 1 8 | = 47
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