Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 22:43Z
det| 5 1 ; 4 6 | = 26
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
12φ² + 4φ + 4 = 0
\frac{4}{9} \sum_{i=1}^{n} i^{2}
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E = mc²
\oint_C \vec{F}\cdot d\vec{r} = 0
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C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
\frac{4}{8} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
11K
\lim_{t\to 0} \frac{\sin t}{t} = 1
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