Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 02:17Z
\lim_{r\to 0} \frac{\sin r}{r} = 1
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
8K
E = mc²
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
57K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 11 9 ; 0 12 | = 132
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∇ × E = −∂B/∂t
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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det| 9 4 ; 1 10 | = 86
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det| 10 5 ; 4 11 | = 90
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∫₀^∞ e^(-φ²) dφ = √π / 2
164K