Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 14:21Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
244K
\frac{12}{6} \sum_{i=1}^{n} i^{2}
52K
det| 12 5 ; 4 13 | = 136
\oint_C \vec{F}\cdot d\vec{r} = 0
91K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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∫₀^∞ e^(-φ²) dφ = √π / 2
137K
det| 9 4 ; 1 10 | = 86
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∫₀^∞ e^(-t²) dt = √π / 2
196K