Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:18Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 2 ; 6 5 | = 8
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3x² + 3x + 6 = 0
∇²t = 0
7z² + 2z + 0 = 0
AgNO₃ + NaCl → AgCl↓ + NaNO₃
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det| 9 4 ; 1 10 | = 86
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det| 4 2 ; 5 5 | = 10
\oint_C \vec{F}\cdot d\vec{r} = 0
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2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
402K
\lim_{x\to 0} \frac{\sin x}{x} = 1